diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index c85b192b34a..e4d878641b3 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -20,11 +20,11 @@ class ApplicationController < ActionController::Base
   before_action :authenticate_user!, except: [:route_not_found]
   before_action :enforce_terms!, if: :should_enforce_terms?
   before_action :validate_user_service_ticket!
-  before_action :check_password_expiration
+  before_action :check_password_expiration, if: :html_request?
   before_action :ldap_security_check
   before_action :sentry_context
   before_action :default_headers
-  before_action :add_gon_variables, unless: [:peek_request?, :json_request?]
+  before_action :add_gon_variables, if: :html_request?
   before_action :configure_permitted_parameters, if: :devise_controller?
   before_action :require_email, unless: :devise_controller?
   before_action :active_user_check, unless: :devise_controller?
@@ -455,8 +455,8 @@ class ApplicationController < ActionController::Base
     response.headers['Page-Title'] = URI.escape(page_title('GitLab'))
   end
 
-  def peek_request?
-    request.path.start_with?('/-/peek')
+  def html_request?
+    request.format.html?
   end
 
   def json_request?
@@ -466,7 +466,7 @@ class ApplicationController < ActionController::Base
   def should_enforce_terms?
     return false unless Gitlab::CurrentSettings.current_application_settings.enforce_terms
 
-    !(peek_request? || devise_controller?)
+    html_request? && !devise_controller?
   end
 
   def set_usage_stats_consent_flag
diff --git a/app/controllers/concerns/confirm_email_warning.rb b/app/controllers/concerns/confirm_email_warning.rb
index 86df0010665..32e1a46e580 100644
--- a/app/controllers/concerns/confirm_email_warning.rb
+++ b/app/controllers/concerns/confirm_email_warning.rb
@@ -4,15 +4,18 @@ module ConfirmEmailWarning
   extend ActiveSupport::Concern
 
   included do
-    before_action :set_confirm_warning, if: -> { Feature.enabled?(:soft_email_confirmation) }
+    before_action :set_confirm_warning, if: :show_confirm_warning?
   end
 
   protected
 
+  def show_confirm_warning?
+    html_request? && request.get? && Feature.enabled?(:soft_email_confirmation)
+  end
+
   def set_confirm_warning
     return unless current_user
     return if current_user.confirmed?
-    return if peek_request? || json_request? || !request.get?
 
     email = current_user.unconfirmed_email || current_user.email
 
diff --git a/app/controllers/concerns/uploads_actions.rb b/app/controllers/concerns/uploads_actions.rb
index b87779c22d3..023c41821da 100644
--- a/app/controllers/concerns/uploads_actions.rb
+++ b/app/controllers/concerns/uploads_actions.rb
@@ -1,11 +1,16 @@
 # frozen_string_literal: true
 
 module UploadsActions
+  extend ActiveSupport::Concern
   include Gitlab::Utils::StrongMemoize
   include SendFileUpload
 
   UPLOAD_MOUNTS = %w(avatar attachment file logo header_logo favicon).freeze
 
+  included do
+    prepend_before_action :set_request_format_from_path_extension
+  end
+
   def create
     uploader = UploadService.new(model, params[:file], uploader_class).execute
 
@@ -64,6 +69,18 @@ module UploadsActions
 
   private
 
+  # From ActionDispatch::Http::MimeNegotiation. We have an initializer that
+  # monkey-patches this method out (so that repository paths don't guess a
+  # format based on extension), but we do want this behaviour when serving
+  # uploads.
+  def set_request_format_from_path_extension
+    path = request.headers['action_dispatch.original_path'] || request.headers['PATH_INFO']
+
+    if match = path&.match(/\.(\w+)\z/)
+      request.format = match.captures.first
+    end
+  end
+
   def uploader_class
     raise NotImplementedError
   end
diff --git a/app/controllers/projects/environments_controller.rb b/app/controllers/projects/environments_controller.rb
index 5fd475f5499..e0da3d9b6c9 100644
--- a/app/controllers/projects/environments_controller.rb
+++ b/app/controllers/projects/environments_controller.rb
@@ -133,7 +133,7 @@ class Projects::EnvironmentsController < Projects::ApplicationController
     if environment
       redirect_to environment_metrics_path(environment)
     else
-      render :empty
+      render :empty_metrics
     end
   end
 
diff --git a/app/controllers/projects/error_tracking_controller.rb b/app/controllers/projects/error_tracking_controller.rb
index 88d0755f41f..9dea6b663ea 100644
--- a/app/controllers/projects/error_tracking_controller.rb
+++ b/app/controllers/projects/error_tracking_controller.rb
@@ -15,6 +15,23 @@ class Projects::ErrorTrackingController < Projects::ApplicationController
     end
   end
 
+  def details
+    respond_to do |format|
+      format.html
+      format.json do
+        render_issue_detail_json
+      end
+    end
+  end
+
+  def stack_trace
+    respond_to do |format|
+      format.json do
+        render_issue_stack_trace_json
+      end
+    end
+  end
+
   def list_projects
     respond_to do |format|
       format.json do
@@ -29,10 +46,7 @@ class Projects::ErrorTrackingController < Projects::ApplicationController
     service = ErrorTracking::ListIssuesService.new(project, current_user)
     result = service.execute
 
-    unless result[:status] == :success
-      return render json: { message: result[:message] },
-                    status: result[:http_status] || :bad_request
-    end
+    return if handle_errors(result)
 
     render json: {
       errors: serialize_errors(result[:issues]),
@@ -40,6 +54,28 @@ class Projects::ErrorTrackingController < Projects::ApplicationController
     }
   end
 
+  def render_issue_detail_json
+    service = ErrorTracking::IssueDetailsService.new(project, current_user, issue_details_params)
+    result = service.execute
+
+    return if handle_errors(result)
+
+    render json: {
+      error: serialize_detailed_error(result[:issue])
+    }
+  end
+
+  def render_issue_stack_trace_json
+    service = ErrorTracking::IssueLatestEventService.new(project, current_user, issue_details_params)
+    result = service.execute
+
+    return if handle_errors(result)
+
+    render json: {
+      error: serialize_error_event(result[:latest_event])
+    }
+  end
+
   def render_project_list_json
     service = ErrorTracking::ListProjectsService.new(
       project,
@@ -62,10 +98,21 @@ class Projects::ErrorTrackingController < Projects::ApplicationController
     end
   end
 
+  def handle_errors(result)
+    unless result[:status] == :success
+      render json: { message: result[:message] },
+             status: result[:http_status] || :bad_request
+    end
+  end
+
   def list_projects_params
     params.require(:error_tracking_setting).permit([:api_host, :token])
   end
 
+  def issue_details_params
+    params.permit(:issue_id)
+  end
+
   def set_polling_interval
     Gitlab::PollingInterval.set_header(response, interval: POLLING_INTERVAL)
   end
@@ -76,6 +123,18 @@ class Projects::ErrorTrackingController < Projects::ApplicationController
       .represent(errors)
   end
 
+  def serialize_detailed_error(error)
+    ErrorTracking::DetailedErrorSerializer
+      .new(project: project, user: current_user)
+      .represent(error)
+  end
+
+  def serialize_error_event(event)
+    ErrorTracking::ErrorEventSerializer
+      .new(project: project, user: current_user)
+      .represent(event)
+  end
+
   def serialize_projects(projects)
     ErrorTracking::ProjectSerializer
       .new(project: project, user: current_user)
diff --git a/app/controllers/uploads_controller.rb b/app/controllers/uploads_controller.rb
index 635db386792..f39a2b81b54 100644
--- a/app/controllers/uploads_controller.rb
+++ b/app/controllers/uploads_controller.rb
@@ -20,7 +20,7 @@ class UploadsController < ApplicationController
 
   skip_before_action :authenticate_user!
   before_action :upload_mount_satisfied?
-  before_action :find_model
+  before_action :model
   before_action :authorize_access!, only: [:show]
   before_action :authorize_create_access!, only: [:create, :authorize]
   before_action :verify_workhorse_api!, only: [:authorize]
diff --git a/app/helpers/application_settings_helper.rb b/app/helpers/application_settings_helper.rb
index ec2e1648904..120958eb631 100644
--- a/app/helpers/application_settings_helper.rb
+++ b/app/helpers/application_settings_helper.rb
@@ -293,7 +293,7 @@ module ApplicationSettingsHelper
       :snowplow_collector_hostname,
       :snowplow_cookie_domain,
       :snowplow_enabled,
-      :snowplow_site_id,
+      :snowplow_app_id,
       :snowplow_iglu_registry_url,
       :push_event_hooks_limit,
       :push_event_activities_limit,
diff --git a/app/helpers/projects/error_tracking_helper.rb b/app/helpers/projects/error_tracking_helper.rb
index fd1222a1dfb..2f5f612ed4c 100644
--- a/app/helpers/projects/error_tracking_helper.rb
+++ b/app/helpers/projects/error_tracking_helper.rb
@@ -13,4 +13,13 @@ module Projects::ErrorTrackingHelper
       'illustration-path' => image_path('illustrations/cluster_popover.svg')
     }
   end
+
+  def error_details_data(project, issue)
+    opts = [project, issue, { format: :json }]
+
+    {
+      'issue-details-path' => details_namespace_project_error_tracking_index_path(*opts),
+      'issue-stack-trace-path' => stack_trace_namespace_project_error_tracking_index_path(*opts)
+    }
+  end
 end
diff --git a/app/models/application_setting_implementation.rb b/app/models/application_setting_implementation.rb
index 9119f8766eb..2b2492a793a 100644
--- a/app/models/application_setting_implementation.rb
+++ b/app/models/application_setting_implementation.rb
@@ -132,11 +132,12 @@ module ApplicationSettingImplementation
         snowplow_collector_hostname: nil,
         snowplow_cookie_domain: nil,
         snowplow_enabled: false,
-        snowplow_site_id: nil,
+        snowplow_app_id: nil,
         snowplow_iglu_registry_url: nil,
         custom_http_clone_url_root: nil,
         pendo_enabled: false,
-        pendo_url: nil
+        pendo_url: nil,
+        productivity_analytics_start_date: Time.now
       }
     end
 
diff --git a/app/models/error_tracking/project_error_tracking_setting.rb b/app/models/error_tracking/project_error_tracking_setting.rb
index 0b4fef5eac1..0fa19b1cedc 100644
--- a/app/models/error_tracking/project_error_tracking_setting.rb
+++ b/app/models/error_tracking/project_error_tracking_setting.rb
@@ -87,10 +87,30 @@ module ErrorTracking
       { projects: sentry_client.list_projects }
     end
 
+    def issue_details(opts = {})
+      with_reactive_cache('issue_details', opts.stringify_keys) do |result|
+        result
+      end
+    end
+
+    def issue_latest_event(opts = {})
+      with_reactive_cache('issue_latest_event', opts.stringify_keys) do |result|
+        result
+      end
+    end
+
     def calculate_reactive_cache(request, opts)
       case request
       when 'list_issues'
         { issues: sentry_client.list_issues(**opts.symbolize_keys) }
+      when 'issue_details'
+        {
+          issue: sentry_client.issue_details(**opts.symbolize_keys)
+        }
+      when 'issue_latest_event'
+        {
+          latest_event: sentry_client.issue_latest_event(**opts.symbolize_keys)
+        }
       end
     rescue Sentry::Client::Error => e
       { error: e.message, error_type: SENTRY_API_ERROR_TYPE_NON_20X_RESPONSE }
diff --git a/app/serializers/error_tracking/detailed_error_entity.rb b/app/serializers/error_tracking/detailed_error_entity.rb
new file mode 100644
index 00000000000..8f08f84aa41
--- /dev/null
+++ b/app/serializers/error_tracking/detailed_error_entity.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class DetailedErrorEntity < Grape::Entity
+    expose :count,
+           :culprit,
+           :external_base_url,
+           :external_url,
+           :first_release_last_commit,
+           :first_release_short_version,
+           :first_seen,
+           :frequency,
+           :id,
+           :last_release_last_commit,
+           :last_release_short_version,
+           :last_seen,
+           :message,
+           :project_id,
+           :project_name,
+           :project_slug,
+           :short_id,
+           :status,
+           :title,
+           :type,
+           :user_count
+  end
+end
diff --git a/app/serializers/error_tracking/detailed_error_serializer.rb b/app/serializers/error_tracking/detailed_error_serializer.rb
new file mode 100644
index 00000000000..201da16a1ae
--- /dev/null
+++ b/app/serializers/error_tracking/detailed_error_serializer.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class DetailedErrorSerializer < BaseSerializer
+    entity DetailedErrorEntity
+  end
+end
diff --git a/app/serializers/error_tracking/error_event_entity.rb b/app/serializers/error_tracking/error_event_entity.rb
new file mode 100644
index 00000000000..6cf0e6e3ae2
--- /dev/null
+++ b/app/serializers/error_tracking/error_event_entity.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class ErrorEventEntity < Grape::Entity
+    expose :issue_id, :date_received, :stack_trace_entries
+  end
+end
diff --git a/app/serializers/error_tracking/error_event_serializer.rb b/app/serializers/error_tracking/error_event_serializer.rb
new file mode 100644
index 00000000000..bc4eae16368
--- /dev/null
+++ b/app/serializers/error_tracking/error_event_serializer.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class ErrorEventSerializer < BaseSerializer
+    entity ErrorEventEntity
+  end
+end
diff --git a/app/services/error_tracking/base_service.rb b/app/services/error_tracking/base_service.rb
new file mode 100644
index 00000000000..430d9952332
--- /dev/null
+++ b/app/services/error_tracking/base_service.rb
@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class BaseService < ::BaseService
+    def execute
+      unauthorized = check_permissions
+      return unauthorized if unauthorized
+
+      begin
+        response = fetch
+      rescue Sentry::Client::Error => e
+        return error(e.message, :bad_request)
+      rescue Sentry::Client::MissingKeysError => e
+        return error(e.message, :internal_server_error)
+      end
+
+      errors = parse_errors(response)
+      return errors if errors
+
+      success(parse_response(response))
+    end
+
+    private
+
+    def fetch
+      raise NotImplementedError,
+          "#{self.class} does not implement #{__method__}"
+    end
+
+    def parse_response(response)
+      raise NotImplementedError,
+          "#{self.class} does not implement #{__method__}"
+    end
+
+    def check_permissions
+      return error('Error Tracking is not enabled') unless enabled?
+      return error('Access denied', :unauthorized) unless can_read?
+    end
+
+    def parse_errors(response)
+      return error('Not ready. Try again later', :no_content) unless response
+      return error(response[:error], http_status_for(response[:error_type])) if response[:error].present?
+    end
+
+    def http_status_for(error_type)
+      case error_type
+      when ErrorTracking::ProjectErrorTrackingSetting::SENTRY_API_ERROR_TYPE_MISSING_KEYS
+        :internal_server_error
+      else
+        :bad_request
+      end
+    end
+
+    def project_error_tracking_setting
+      project.error_tracking_setting
+    end
+
+    def enabled?
+      project_error_tracking_setting&.enabled?
+    end
+
+    def can_read?
+      can?(current_user, :read_sentry_issue, project)
+    end
+  end
+end
diff --git a/app/services/error_tracking/issue_details_service.rb b/app/services/error_tracking/issue_details_service.rb
new file mode 100644
index 00000000000..368cd4517fc
--- /dev/null
+++ b/app/services/error_tracking/issue_details_service.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class IssueDetailsService < ErrorTracking::BaseService
+    private
+
+    def fetch
+      project_error_tracking_setting.issue_details(issue_id: params[:issue_id])
+    end
+
+    def parse_response(response)
+      { issue: response[:issue] }
+    end
+  end
+end
diff --git a/app/services/error_tracking/issue_latest_event_service.rb b/app/services/error_tracking/issue_latest_event_service.rb
new file mode 100644
index 00000000000..b6ad8f8028b
--- /dev/null
+++ b/app/services/error_tracking/issue_latest_event_service.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module ErrorTracking
+  class IssueLatestEventService < ErrorTracking::BaseService
+    private
+
+    def fetch
+      project_error_tracking_setting.issue_latest_event(issue_id: params[:issue_id])
+    end
+
+    def parse_response(response)
+      { latest_event: response[:latest_event] }
+    end
+  end
+end
diff --git a/app/services/error_tracking/list_issues_service.rb b/app/services/error_tracking/list_issues_service.rb
index 86ab21fa865..e09f4345308 100644
--- a/app/services/error_tracking/list_issues_service.rb
+++ b/app/services/error_tracking/list_issues_service.rb
@@ -1,48 +1,24 @@
 # frozen_string_literal: true
 
 module ErrorTracking
-  class ListIssuesService < ::BaseService
+  class ListIssuesService < ErrorTracking::BaseService
     DEFAULT_ISSUE_STATUS = 'unresolved'
     DEFAULT_LIMIT = 20
 
-    def execute
-      return error('Error Tracking is not enabled') unless enabled?
-      return error('Access denied', :unauthorized) unless can_read?
+    private
 
-      result = project_error_tracking_setting
-        .list_sentry_issues(issue_status: issue_status, limit: limit)
+    def fetch
+      project_error_tracking_setting.list_sentry_issues(issue_status: issue_status, limit: limit)
+    end
 
-      # our results are not yet ready
-      unless result
-        return error('Not ready. Try again later', :no_content)
-      end
-
-      if result[:error].present?
-        return error(result[:error], http_status_from_error_type(result[:error_type]))
-      end
-
-      success(issues: result[:issues])
+    def parse_response(response)
+      { issues: response[:issues] }
     end
 
     def external_url
       project_error_tracking_setting&.sentry_external_url
     end
 
-    private
-
-    def http_status_from_error_type(error_type)
-      case error_type
-      when ErrorTracking::ProjectErrorTrackingSetting::SENTRY_API_ERROR_TYPE_MISSING_KEYS
-        :internal_server_error
-      else
-        :bad_request
-      end
-    end
-
-    def project_error_tracking_setting
-      project.error_tracking_setting
-    end
-
     def issue_status
       params[:issue_status] || DEFAULT_ISSUE_STATUS
     end
@@ -50,13 +26,5 @@ module ErrorTracking
     def limit
       params[:limit] || DEFAULT_LIMIT
     end
-
-    def enabled?
-      project_error_tracking_setting&.enabled?
-    end
-
-    def can_read?
-      can?(current_user, :read_sentry_issue, project)
-    end
   end
 end
diff --git a/app/services/error_tracking/list_projects_service.rb b/app/services/error_tracking/list_projects_service.rb
index 92d4ef85ecf..09a0b952e84 100644
--- a/app/services/error_tracking/list_projects_service.rb
+++ b/app/services/error_tracking/list_projects_service.rb
@@ -1,44 +1,38 @@
 # frozen_string_literal: true
 
 module ErrorTracking
-  class ListProjectsService < ::BaseService
+  class ListProjectsService < ErrorTracking::BaseService
     def execute
-      return error('access denied') unless can_read?
-
-      setting = project_error_tracking_setting
-
-      unless setting.valid?
-        return error(setting.errors.full_messages.join(', '), :bad_request)
+      unless project_error_tracking_setting.valid?
+        return error(project_error_tracking_setting.errors.full_messages.join(', '), :bad_request)
       end
 
-      begin
-        result = setting.list_sentry_projects
-      rescue Sentry::Client::Error => e
-        return error(e.message, :bad_request)
-      rescue Sentry::Client::MissingKeysError => e
-        return error(e.message, :internal_server_error)
-      end
-
-      success(projects: result[:projects])
+      super
     end
 
     private
 
-    def project_error_tracking_setting
-      (project.error_tracking_setting || project.build_error_tracking_setting).tap do |setting|
-        setting.api_url = ErrorTracking::ProjectErrorTrackingSetting.build_api_url_from(
-          api_host: params[:api_host],
-          organization_slug: 'org',
-          project_slug: 'proj'
-        )
-
-        setting.token = token(setting)
-        setting.enabled = true
-      end
+    def fetch
+      project_error_tracking_setting.list_sentry_projects
     end
 
-    def can_read?
-      can?(current_user, :read_sentry_issue, project)
+    def parse_response(response)
+      { projects: response[:projects] }
+    end
+
+    def project_error_tracking_setting
+      @project_error_tracking_setting ||= begin
+        (super || project.build_error_tracking_setting).tap do |setting|
+          setting.api_url = ErrorTracking::ProjectErrorTrackingSetting.build_api_url_from(
+            api_host: params[:api_host],
+            organization_slug: 'org',
+            project_slug: 'proj'
+          )
+
+          setting.token = token(setting)
+          setting.enabled = true
+        end
+      end
     end
 
     def token(setting)
diff --git a/app/views/admin/application_settings/_snowplow.html.haml b/app/views/admin/application_settings/_snowplow.html.haml
index ff96c5d64ac..a2597433270 100644
--- a/app/views/admin/application_settings/_snowplow.html.haml
+++ b/app/views/admin/application_settings/_snowplow.html.haml
@@ -21,8 +21,8 @@
           = f.label :snowplow_collector_hostname, _('Collector hostname'), class: 'label-light'
           = f.text_field :snowplow_collector_hostname, class: 'form-control', placeholder: 'snowplow.example.com'
         .form-group
-          = f.label :snowplow_site_id, _('Site ID'), class: 'label-light'
-          = f.text_field :snowplow_site_id, class: 'form-control'
+          = f.label :snowplow_app_id, _('App ID'), class: 'label-light'
+          = f.text_field :snowplow_app_id, class: 'form-control'
         .form-group
           = f.label :snowplow_cookie_domain, _('Cookie domain'), class: 'label-light'
           = f.text_field :snowplow_cookie_domain, class: 'form-control'
diff --git a/app/views/layouts/nav/sidebar/_project.html.haml b/app/views/layouts/nav/sidebar/_project.html.haml
index 2c0cb973542..9b3ad05d0c0 100644
--- a/app/views/layouts/nav/sidebar/_project.html.haml
+++ b/app/views/layouts/nav/sidebar/_project.html.haml
@@ -247,6 +247,8 @@
                   %span
                     = _('Serverless')
 
+            = render_if_exists 'layouts/nav/sidebar/pod_logs_link' # EE-specific
+
             - if project_nav_tab? :clusters
               - show_cluster_hint = show_gke_cluster_integration_callout?(@project)
               = nav_link(controller: [:clusters, :user, :gcp]) do
diff --git a/app/views/projects/environments/empty_logs.html.haml b/app/views/projects/environments/empty_logs.html.haml
new file mode 100644
index 00000000000..602dc908b75
--- /dev/null
+++ b/app/views/projects/environments/empty_logs.html.haml
@@ -0,0 +1,14 @@
+- page_title _('Pod logs')
+
+.row.empty-state
+  .col-sm-12
+    .svg-content
+      = image_tag 'illustrations/operations_log_pods_empty.svg'
+  .col-12
+    .text-content
+      %h4.text-center
+        = s_('Environments|No deployed environments')
+      %p.state-description.text-center
+        = s_('Logs|To see the pod logs, deploy your code to an environment.')
+      .text-center
+        = link_to s_('Environments|Learn about environments'), help_page_path('ci/environments'), class: 'btn btn-success'
diff --git a/app/views/projects/environments/empty.html.haml b/app/views/projects/environments/empty_metrics.html.haml
similarity index 64%
rename from app/views/projects/environments/empty.html.haml
rename to app/views/projects/environments/empty_metrics.html.haml
index 129dbbf4e56..dad93290fbd 100644
--- a/app/views/projects/environments/empty.html.haml
+++ b/app/views/projects/environments/empty_metrics.html.haml
@@ -7,8 +7,8 @@
   .col-12
     .text-content
       %h4.text-center
-        = s_('Metrics|No deployed environments')
+        = s_('Environments|No deployed environments')
       %p.state-description
         = s_('Metrics|Check out the CI/CD documentation on deploying to an environment')
       .text-center
-        = link_to s_("Metrics|Learn about environments"), help_page_path('ci/environments'), class: 'btn btn-success'
+        = link_to s_("Environments|Learn about environments"), help_page_path('ci/environments'), class: 'btn btn-success'
diff --git a/app/views/projects/error_tracking/details.html.haml b/app/views/projects/error_tracking/details.html.haml
new file mode 100644
index 00000000000..52e748fa88b
--- /dev/null
+++ b/app/views/projects/error_tracking/details.html.haml
@@ -0,0 +1,3 @@
+- page_title _('Error Details')
+
+#js-error_tracking{ data: error_details_data(@current_user, @project) }
diff --git a/changelogs/unreleased/31222-follow-up-from-adjusts-snowplow-to-use-cookies-for-sessions.yml b/changelogs/unreleased/31222-follow-up-from-adjusts-snowplow-to-use-cookies-for-sessions.yml
new file mode 100644
index 00000000000..6d62663a0bc
--- /dev/null
+++ b/changelogs/unreleased/31222-follow-up-from-adjusts-snowplow-to-use-cookies-for-sessions.yml
@@ -0,0 +1,5 @@
+---
+title: Rename snowplow_site_id to snowplow_app_id in application_settings table
+merge_request: 19252
+author:
+type: other
diff --git a/changelogs/unreleased/32052-add-pa-start-date-limit.yml b/changelogs/unreleased/32052-add-pa-start-date-limit.yml
new file mode 100644
index 00000000000..fa2cf796edb
--- /dev/null
+++ b/changelogs/unreleased/32052-add-pa-start-date-limit.yml
@@ -0,0 +1,5 @@
+---
+title: Add productivity analytics merge date filtering limit
+merge_request: 32052
+author:
+type: fixed
diff --git a/changelogs/unreleased/32464-backend-sentry-error-details.yml b/changelogs/unreleased/32464-backend-sentry-error-details.yml
new file mode 100644
index 00000000000..aa7b44f9d08
--- /dev/null
+++ b/changelogs/unreleased/32464-backend-sentry-error-details.yml
@@ -0,0 +1,5 @@
+---
+title: API for stack trace & detail view of Sentry error in GitLab
+merge_request: 19137
+author:
+type: added
diff --git a/config/routes/project.rb b/config/routes/project.rb
index d49ba20ce84..0812f3f7b62 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -441,6 +441,10 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
           get :metrics, action: :metrics_redirect
           get :folder, path: 'folders/*id', constraints: { format: /(html|json)/ }
           get :search
+
+          Gitlab.ee do
+            get :logs, action: :logs_redirect
+          end
         end
 
         resources :deployments, only: [:index] do
@@ -613,6 +617,12 @@ constraints(::Constraints::ProjectUrlConstrainer.new) do
 
       resources :error_tracking, only: [:index], controller: :error_tracking do
         collection do
+          get ':issue_id/details',
+              to: 'error_tracking#details',
+              as: 'details'
+          get ':issue_id/stack_trace',
+              to: 'error_tracking#stack_trace',
+              as: 'stack_trace'
           post :list_projects
         end
       end
diff --git a/db/migrate/20191004080818_add_productivity_analytics_start_date.rb b/db/migrate/20191004080818_add_productivity_analytics_start_date.rb
new file mode 100644
index 00000000000..287b0755bc1
--- /dev/null
+++ b/db/migrate/20191004080818_add_productivity_analytics_start_date.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class AddProductivityAnalyticsStartDate < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    add_column :application_settings, :productivity_analytics_start_date, :datetime_with_timezone
+  end
+end
diff --git a/db/migrate/20191004081520_fill_productivity_analytics_start_date.rb b/db/migrate/20191004081520_fill_productivity_analytics_start_date.rb
new file mode 100644
index 00000000000..9432cd68708
--- /dev/null
+++ b/db/migrate/20191004081520_fill_productivity_analytics_start_date.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+# Expected migration duration: 1 minute
+class FillProductivityAnalyticsStartDate < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :merge_request_metrics, :merged_at,
+                         where: "merged_at > '2019-09-01' AND commits_count IS NOT NULL",
+                         name: 'fill_productivity_analytics_start_date_tmp_index'
+
+    execute(
+      <<SQL
+        UPDATE application_settings
+        SET productivity_analytics_start_date = COALESCE((SELECT MIN(merged_at) FROM merge_request_metrics
+            WHERE merged_at > '2019-09-01' AND commits_count IS NOT NULL), NOW())
+SQL
+    )
+
+    remove_concurrent_index :merge_request_metrics, :merged_at,
+                            name: 'fill_productivity_analytics_start_date_tmp_index'
+  end
+
+  def down
+    execute('UPDATE application_settings SET productivity_analytics_start_date = NULL')
+  end
+end
diff --git a/db/migrate/20191028184740_rename_snowplow_site_id_to_snowplow_app_id.rb b/db/migrate/20191028184740_rename_snowplow_site_id_to_snowplow_app_id.rb
new file mode 100644
index 00000000000..4e3b2da670e
--- /dev/null
+++ b/db/migrate/20191028184740_rename_snowplow_site_id_to_snowplow_app_id.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class RenameSnowplowSiteIdToSnowplowAppId < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    rename_column_concurrently :application_settings, :snowplow_site_id, :snowplow_app_id
+  end
+
+  def down
+    undo_rename_column_concurrently :application_settings, :snowplow_site_id, :snowplow_app_id
+  end
+end
diff --git a/db/post_migrate/20191029095537_cleanup_application_settings_snowplow_site_id_rename.rb b/db/post_migrate/20191029095537_cleanup_application_settings_snowplow_site_id_rename.rb
new file mode 100644
index 00000000000..83b4a2af2b6
--- /dev/null
+++ b/db/post_migrate/20191029095537_cleanup_application_settings_snowplow_site_id_rename.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class CleanupApplicationSettingsSnowplowSiteIdRename < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    cleanup_concurrent_column_rename :application_settings, :snowplow_site_id, :snowplow_app_id
+  end
+
+  def down
+    undo_cleanup_concurrent_column_rename :application_settings, :snowplow_site_id, :snowplow_app_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index fa12e13f1b4..c0b74841834 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -287,7 +287,6 @@ ActiveRecord::Schema.define(version: 2019_11_05_094625) do
     t.boolean "hide_third_party_offers", default: false, null: false
     t.boolean "snowplow_enabled", default: false, null: false
     t.string "snowplow_collector_hostname"
-    t.string "snowplow_site_id"
     t.string "snowplow_cookie_domain"
     t.boolean "instance_statistics_visibility_private", default: false, null: false
     t.boolean "web_ide_clientside_preview_enabled", default: false, null: false
@@ -350,6 +349,8 @@ ActiveRecord::Schema.define(version: 2019_11_05_094625) do
     t.string "eks_access_key_id", limit: 128
     t.string "encrypted_eks_secret_access_key_iv", limit: 255
     t.text "encrypted_eks_secret_access_key"
+    t.string "snowplow_app_id"
+    t.datetime_with_timezone "productivity_analytics_start_date"
     t.index ["custom_project_templates_group_id"], name: "index_application_settings_on_custom_project_templates_group_id"
     t.index ["file_template_project_id"], name: "index_application_settings_on_file_template_project_id"
     t.index ["instance_administration_project_id"], name: "index_applicationsettings_on_instance_administration_project_id"
diff --git a/doc/api/settings.md b/doc/api/settings.md
index a061309d8d1..16624d56a90 100644
--- a/doc/api/settings.md
+++ b/doc/api/settings.md
@@ -319,7 +319,7 @@ are listed in the descriptions of the relevant settings.
 | `snowplow_collector_hostname`            | string           | required by: `snowplow_enabled`      | The Snowplow collector hostname. (e.g. `snowplow.trx.gitlab.net`) |
 | `snowplow_cookie_domain`                 | string           | no                                   | The Snowplow cookie domain. (e.g. `.gitlab.com`) |
 | `snowplow_enabled`                       | boolean          | no                                   | Enable snowplow tracking. |
-| `snowplow_site_id`                       | string           | no                                   | The Snowplow site name / application id. (e.g. `gitlab`) |
+| `snowplow_app_id`                        | string           | no                                   | The Snowplow site name / application id. (e.g. `gitlab`) |
 | `snowplow_iglu_registry_url`             | string           | no                                   | The Snowplow base Iglu Schema Registry URL to use for custom context and self describing events'|
 | `pendo_url`                              | string           | required by: `pendo_enabled`         | The Pendo endpoint url with js snippet. (e.g. `https://cdn.pendo.io/agent/static/your-api-key/pendo.js`) |
 | `pendo_enabled`                          | boolean          | no                                   | Enable pendo tracking. |
diff --git a/doc/ci/yaml/README.md b/doc/ci/yaml/README.md
index 9ebc0569127..3134e3120df 100644
--- a/doc/ci/yaml/README.md
+++ b/doc/ci/yaml/README.md
@@ -135,6 +135,7 @@ The following job parameters can be defined inside a `default:` block:
 - [`before_script`](#before_script-and-after_script)
 - [`after_script`](#before_script-and-after_script)
 - [`cache`](#cache)
+- [`interruptible`](#interruptible)
 
 In the following example, the `ruby:2.5` image is set as the default for all
 jobs except the `rspec 2.6` job, which uses the `ruby:2.6` image:
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index a18380586a7..47ee81c7080 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -296,9 +296,12 @@ module API
       end
       get ':id/merge_requests/:merge_request_iid/commits' do
         merge_request = find_merge_request_with_access(params[:merge_request_iid])
-        commits = ::Kaminari.paginate_array(merge_request.commits)
 
-        present paginate(commits), with: Entities::Commit
+        commits =
+          paginate(merge_request.merge_request_diff.merge_request_diff_commits)
+            .map { |commit| Commit.from_hash(commit.to_hash, merge_request.project) }
+
+        present commits, with: Entities::Commit
       end
 
       desc 'Show the merge request changes' do
diff --git a/lib/api/settings.rb b/lib/api/settings.rb
index 11eece8f862..7bf09fd85e2 100644
--- a/lib/api/settings.rb
+++ b/lib/api/settings.rb
@@ -145,7 +145,7 @@ module API
       given snowplow_enabled: ->(val) { val } do
         requires :snowplow_collector_hostname, type: String, desc: 'The Snowplow collector hostname'
         optional :snowplow_cookie_domain, type: String, desc: 'The Snowplow cookie domain'
-        optional :snowplow_site_id, type: String, desc: 'The Snowplow site name / application ic'
+        optional :snowplow_app_id, type: String, desc: 'The Snowplow site name / application id'
       end
       optional :pendo_enabled, type: Grape::API::Boolean, desc: 'Enable Pendo tracking'
       given pendo_enabled: ->(val) { val } do
diff --git a/lib/gitlab/ci/config/entry/boolean.rb b/lib/gitlab/ci/config/entry/boolean.rb
new file mode 100644
index 00000000000..10619ef9f8d
--- /dev/null
+++ b/lib/gitlab/ci/config/entry/boolean.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    class Config
+      module Entry
+        ##
+        # Entry that represents the interrutible value.
+        #
+        class Boolean < ::Gitlab::Config::Entry::Node
+          include ::Gitlab::Config::Entry::Validatable
+
+          validations do
+            validates :config, boolean: true
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/config/entry/default.rb b/lib/gitlab/ci/config/entry/default.rb
index 78297ff5846..83127bde6e4 100644
--- a/lib/gitlab/ci/config/entry/default.rb
+++ b/lib/gitlab/ci/config/entry/default.rb
@@ -14,7 +14,7 @@ module Gitlab
           include ::Gitlab::Config::Entry::Inheritable
 
           ALLOWED_KEYS = %i[before_script image services
-                            after_script cache].freeze
+                            after_script cache interruptible].freeze
 
           validations do
             validates :config, allowed_keys: ALLOWED_KEYS
@@ -40,7 +40,11 @@ module Gitlab
             description: 'Configure caching between build jobs.',
             inherit: true
 
-          helpers :before_script, :image, :services, :after_script, :cache
+          entry :interruptible, Entry::Boolean,
+            description: 'Set jobs interruptible default value.',
+            inherit: false
+
+          helpers :before_script, :image, :services, :after_script, :cache, :interruptible
 
           private
 
diff --git a/lib/gitlab/ci/config/entry/job.rb b/lib/gitlab/ci/config/entry/job.rb
index 2d5981a4255..ace42ebd872 100644
--- a/lib/gitlab/ci/config/entry/job.rb
+++ b/lib/gitlab/ci/config/entry/job.rb
@@ -38,7 +38,6 @@ module Gitlab
             with_options allow_nil: true do
               validates :tags, array_of_strings: true
               validates :allow_failure, boolean: true
-              validates :interruptible, boolean: true
               validates :parallel, numericality: { only_integer: true,
                                                    greater_than_or_equal_to: 2,
                                                    less_than_or_equal_to: 50 }
@@ -100,6 +99,10 @@ module Gitlab
             description: 'Services that will be used to execute this job.',
             inherit: true
 
+          entry :interruptible, Entry::Boolean,
+            description: 'Set jobs interruptible value.',
+            inherit: true
+
           entry :only, Entry::Policy,
             description: 'Refs policy this job will be executed for.',
             default: Entry::Policy::DEFAULT_ONLY,
diff --git a/lib/gitlab/error_tracking/detailed_error.rb b/lib/gitlab/error_tracking/detailed_error.rb
new file mode 100644
index 00000000000..225280a42f4
--- /dev/null
+++ b/lib/gitlab/error_tracking/detailed_error.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module ErrorTracking
+    class DetailedError
+      include ActiveModel::Model
+
+      attr_accessor :count,
+                    :culprit,
+                    :external_base_url,
+                    :external_url,
+                    :first_release_last_commit,
+                    :first_release_short_version,
+                    :first_seen,
+                    :frequency,
+                    :id,
+                    :last_release_last_commit,
+                    :last_release_short_version,
+                    :last_seen,
+                    :message,
+                    :project_id,
+                    :project_name,
+                    :project_slug,
+                    :short_id,
+                    :status,
+                    :title,
+                    :type,
+                    :user_count
+    end
+  end
+end
diff --git a/lib/gitlab/error_tracking/error_event.rb b/lib/gitlab/error_tracking/error_event.rb
new file mode 100644
index 00000000000..c6e0d82f868
--- /dev/null
+++ b/lib/gitlab/error_tracking/error_event.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module ErrorTracking
+    class ErrorEvent
+      include ActiveModel::Model
+
+      attr_accessor :issue_id, :date_received, :stack_trace_entries
+    end
+  end
+end
diff --git a/lib/gitlab/tracking.rb b/lib/gitlab/tracking.rb
index af6b13b0d36..91e2ff0b10d 100644
--- a/lib/gitlab/tracking.rb
+++ b/lib/gitlab/tracking.rb
@@ -45,7 +45,7 @@ module Gitlab
           namespace: SNOWPLOW_NAMESPACE,
           hostname: Gitlab::CurrentSettings.snowplow_collector_hostname,
           cookie_domain: Gitlab::CurrentSettings.snowplow_cookie_domain,
-          app_id: Gitlab::CurrentSettings.snowplow_site_id,
+          app_id: Gitlab::CurrentSettings.snowplow_app_id,
           form_tracking: additional_features,
           link_click_tracking: additional_features,
           iglu_registry_url: Gitlab::CurrentSettings.snowplow_iglu_registry_url
@@ -59,7 +59,7 @@ module Gitlab
           SnowplowTracker::AsyncEmitter.new(Gitlab::CurrentSettings.snowplow_collector_hostname, protocol: 'https'),
           SnowplowTracker::Subject.new,
           SNOWPLOW_NAMESPACE,
-          Gitlab::CurrentSettings.snowplow_site_id
+          Gitlab::CurrentSettings.snowplow_app_id
         )
       end
     end
diff --git a/lib/sentry/client.rb b/lib/sentry/client.rb
index 07cca1c8d1e..f16df0dde4f 100644
--- a/lib/sentry/client.rb
+++ b/lib/sentry/client.rb
@@ -12,6 +12,18 @@ module Sentry
       @token = token
     end
 
+    def issue_details(issue_id:)
+      issue = get_issue(issue_id: issue_id)
+
+      map_to_detailed_error(issue)
+    end
+
+    def issue_latest_event(issue_id:)
+      latest_event = get_issue_latest_event(issue_id: issue_id)
+
+      map_to_event(latest_event)
+    end
+
     def list_issues(issue_status:, limit:)
       issues = get_issues(issue_status: issue_status, limit: limit)
 
@@ -61,6 +73,14 @@ module Sentry
       })
     end
 
+    def get_issue(issue_id:)
+      http_get(issue_api_url(issue_id))
+    end
+
+    def get_issue_latest_event(issue_id:)
+      http_get(issue_latest_event_api_url(issue_id))
+    end
+
     def get_projects
       http_get(projects_api_url)
     end
@@ -102,6 +122,20 @@ module Sentry
       projects_url
     end
 
+    def issue_api_url(issue_id)
+      issue_url = URI(@url)
+      issue_url.path = "/api/0/issues/#{issue_id}/"
+
+      issue_url
+    end
+
+    def issue_latest_event_api_url(issue_id)
+      latest_event_url = URI(@url)
+      latest_event_url.path = "/api/0/issues/#{issue_id}/events/latest/"
+
+      latest_event_url
+    end
+
     def issues_api_url
       issues_url = URI(@url + '/issues/')
       issues_url.path.squeeze!('/')
@@ -119,38 +153,87 @@ module Sentry
 
     def issue_url(id)
       issues_url = @url + "/issues/#{id}"
-      issues_url = ErrorTracking::ProjectErrorTrackingSetting.extract_sentry_external_url(issues_url)
 
-      uri = URI(issues_url)
-      uri.path.squeeze!('/')
-
-      uri.to_s
+      parse_sentry_url(issues_url)
     end
 
-    def map_to_error(issue)
-      id = issue.fetch('id')
+    def project_url
+      parse_sentry_url(@url)
+    end
 
-      count = issue.fetch('count', nil)
+    def parse_sentry_url(api_url)
+      url = ErrorTracking::ProjectErrorTrackingSetting.extract_sentry_external_url(api_url)
 
-      frequency = issue.dig('stats', '24h')
-      message = issue.dig('metadata', 'value')
+      uri = URI(url)
+      uri.path.squeeze!('/')
+      # Remove trailing spaces
+      uri = uri.to_s.gsub(/\/\z/, '')
 
-      external_url = issue_url(id)
+      uri
+    end
 
-      Gitlab::ErrorTracking::Error.new(
-        id: id,
+    def map_to_event(event)
+      stack_trace = parse_stack_trace(event)
+
+      Gitlab::ErrorTracking::ErrorEvent.new(
+        issue_id: event.dig('groupID'),
+        date_received: event.dig('dateReceived'),
+        stack_trace_entries: stack_trace
+      )
+    end
+
+    def parse_stack_trace(event)
+      exception_entry = event.dig('entries')&.detect { |h| h['type'] == 'exception' }
+      return unless exception_entry
+
+      exception_values = exception_entry.dig('data', 'values')
+      stack_trace_entry = exception_values&.detect { |h| h['stacktrace'].present? }
+      return unless stack_trace_entry
+
+      stack_trace_entry.dig('stacktrace', 'frames')
+    end
+
+    def map_to_detailed_error(issue)
+      Gitlab::ErrorTracking::DetailedError.new(
+        id: issue.fetch('id'),
         first_seen: issue.fetch('firstSeen', nil),
         last_seen: issue.fetch('lastSeen', nil),
         title: issue.fetch('title', nil),
         type: issue.fetch('type', nil),
         user_count: issue.fetch('userCount', nil),
-        count: count,
-        message: message,
+        count: issue.fetch('count', nil),
+        message: issue.dig('metadata', 'value'),
         culprit: issue.fetch('culprit', nil),
-        external_url: external_url,
+        external_url: issue_url(issue.fetch('id')),
+        external_base_url: project_url,
         short_id: issue.fetch('shortId', nil),
         status: issue.fetch('status', nil),
-        frequency: frequency,
+        frequency: issue.dig('stats', '24h'),
+        project_id: issue.dig('project', 'id'),
+        project_name: issue.dig('project', 'name'),
+        project_slug: issue.dig('project', 'slug'),
+        first_release_last_commit: issue.dig('firstRelease', 'lastCommit'),
+        last_release_last_commit: issue.dig('lastRelease', 'lastCommit'),
+        first_release_short_version: issue.dig('firstRelease', 'shortVersion'),
+        last_release_short_version: issue.dig('lastRelease', 'shortVersion')
+      )
+    end
+
+    def map_to_error(issue)
+      Gitlab::ErrorTracking::Error.new(
+        id: issue.fetch('id'),
+        first_seen: issue.fetch('firstSeen', nil),
+        last_seen: issue.fetch('lastSeen', nil),
+        title: issue.fetch('title', nil),
+        type: issue.fetch('type', nil),
+        user_count: issue.fetch('userCount', nil),
+        count: issue.fetch('count', nil),
+        message: issue.dig('metadata', 'value'),
+        culprit: issue.fetch('culprit', nil),
+        external_url: issue_url(issue.fetch('id')),
+        short_id: issue.fetch('shortId', nil),
+        status: issue.fetch('status', nil),
+        frequency: issue.dig('stats', '24h'),
         project_id: issue.dig('project', 'id'),
         project_name: issue.dig('project', 'name'),
         project_slug: issue.dig('project', 'slug')
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 3f9e0e7805b..a45e513d9b2 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -1798,6 +1798,9 @@ msgstr ""
 msgid "Any user"
 msgstr ""
 
+msgid "App ID"
+msgstr ""
+
 msgid "Appearance"
 msgstr ""
 
@@ -6406,12 +6409,18 @@ msgstr ""
 msgid "Environments|Job"
 msgstr ""
 
+msgid "Environments|Learn about environments"
+msgstr ""
+
 msgid "Environments|Learn more about stopping environments"
 msgstr ""
 
 msgid "Environments|New environment"
 msgstr ""
 
+msgid "Environments|No deployed environments"
+msgstr ""
+
 msgid "Environments|No deployments yet"
 msgstr ""
 
@@ -6580,6 +6589,9 @@ msgstr ""
 msgid "Error"
 msgstr ""
 
+msgid "Error Details"
+msgstr ""
+
 msgid "Error Tracking"
 msgstr ""
 
@@ -10177,6 +10189,9 @@ msgstr ""
 msgid "Logs"
 msgstr ""
 
+msgid "Logs|To see the pod logs, deploy your code to an environment."
+msgstr ""
+
 msgid "MD5"
 msgstr ""
 
@@ -10678,9 +10693,6 @@ msgstr ""
 msgid "Metrics|Label of the y-axis (usually the unit). The x-axis always represents time."
 msgstr ""
 
-msgid "Metrics|Learn about environments"
-msgstr ""
-
 msgid "Metrics|Legend label (optional)"
 msgstr ""
 
@@ -10696,9 +10708,6 @@ msgstr ""
 msgid "Metrics|New metric"
 msgstr ""
 
-msgid "Metrics|No deployed environments"
-msgstr ""
-
 msgid "Metrics|PromQL query is valid"
 msgstr ""
 
@@ -12355,6 +12364,9 @@ msgstr ""
 msgid "Please wait while we import the repository for you. Refresh at will."
 msgstr ""
 
+msgid "Pod logs"
+msgstr ""
+
 msgid "Pod not found"
 msgstr ""
 
@@ -15599,9 +15611,6 @@ msgstr ""
 msgid "Single or combined queries"
 msgstr ""
 
-msgid "Site ID"
-msgstr ""
-
 msgid "Size"
 msgstr ""
 
diff --git a/spec/controllers/application_controller_spec.rb b/spec/controllers/application_controller_spec.rb
index 53896c7f5c7..ca39f5dd9f2 100644
--- a/spec/controllers/application_controller_spec.rb
+++ b/spec/controllers/application_controller_spec.rb
@@ -90,14 +90,6 @@ describe ApplicationController do
       let(:format) { :html }
 
       it_behaves_like 'setting gon variables'
-
-      context 'for peek requests' do
-        before do
-          request.path = '/-/peek'
-        end
-
-        it_behaves_like 'not setting gon variables'
-      end
     end
 
     context 'with json format' do
@@ -105,6 +97,12 @@ describe ApplicationController do
 
       it_behaves_like 'not setting gon variables'
     end
+
+    context 'with atom format' do
+      let(:format) { :atom }
+
+      it_behaves_like 'not setting gon variables'
+    end
   end
 
   describe 'session expiration' do
diff --git a/spec/controllers/projects/environments_controller_spec.rb b/spec/controllers/projects/environments_controller_spec.rb
index 3fe5ff5feee..7bb956201fd 100644
--- a/spec/controllers/projects/environments_controller_spec.rb
+++ b/spec/controllers/projects/environments_controller_spec.rb
@@ -330,11 +330,11 @@ describe Projects::EnvironmentsController do
       expect(response).to redirect_to(environment_metrics_path(environment))
     end
 
-    it 'redirects to empty page if no environment exists' do
+    it 'redirects to empty metrics page if no environment exists' do
       get :metrics_redirect, params: { namespace_id: project.namespace, project_id: project }
 
       expect(response).to be_ok
-      expect(response).to render_template 'empty'
+      expect(response).to render_template 'empty_metrics'
     end
   end
 
diff --git a/spec/controllers/projects/error_tracking_controller_spec.rb b/spec/controllers/projects/error_tracking_controller_spec.rb
index 31868f5f717..8155d6ddafe 100644
--- a/spec/controllers/projects/error_tracking_controller_spec.rb
+++ b/spec/controllers/projects/error_tracking_controller_spec.rb
@@ -46,17 +46,6 @@ describe Projects::ErrorTrackingController do
     end
 
     describe 'format json' do
-      shared_examples 'no data' do
-        it 'returns no data' do
-          get :index, params: project_params(format: :json)
-
-          expect(response).to have_gitlab_http_status(:ok)
-          expect(response).to match_response_schema('error_tracking/index')
-          expect(json_response['external_url']).to be_nil
-          expect(json_response['errors']).to eq([])
-        end
-      end
-
       let(:list_issues_service) { spy(:list_issues_service) }
       let(:external_url) { 'http://example.com' }
 
@@ -66,6 +55,19 @@ describe Projects::ErrorTrackingController do
           .and_return(list_issues_service)
       end
 
+      context 'no data' do
+        before do
+          expect(list_issues_service).to receive(:execute)
+            .and_return(status: :error, http_status: :no_content)
+        end
+
+        it 'returns no data' do
+          get :index, params: project_params(format: :json)
+
+          expect(response).to have_gitlab_http_status(:no_content)
+        end
+      end
+
       context 'service result is successful' do
         before do
           expect(list_issues_service).to receive(:execute)
@@ -232,8 +234,186 @@ describe Projects::ErrorTrackingController do
     end
   end
 
+  describe 'GET #issue_details' do
+    let_it_be(:issue_id) { 1234 }
+
+    let(:issue_details_service) { spy(:issue_details_service) }
+
+    let(:permitted_params) do
+      ActionController::Parameters.new(
+        { issue_id: issue_id.to_s }
+      ).permit!
+    end
+
+    before do
+      expect(ErrorTracking::IssueDetailsService)
+        .to receive(:new).with(project, user, permitted_params)
+        .and_return(issue_details_service)
+    end
+
+    describe 'format json' do
+      context 'no data' do
+        before do
+          expect(issue_details_service).to receive(:execute)
+            .and_return(status: :error, http_status: :no_content)
+        end
+
+        it 'returns no data' do
+          get :details, params: issue_params(issue_id: issue_id, format: :json)
+
+          expect(response).to have_gitlab_http_status(:no_content)
+        end
+      end
+
+      context 'service result is successful' do
+        before do
+          expect(issue_details_service).to receive(:execute)
+            .and_return(status: :success, issue: error)
+        end
+
+        let(:error) { build(:detailed_error_tracking_error) }
+
+        it 'returns an error' do
+          get :details, params: issue_params(issue_id: issue_id, format: :json)
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(response).to match_response_schema('error_tracking/issue_detailed')
+          expect(json_response['error']).to eq(error.as_json)
+        end
+      end
+
+      context 'service result is erroneous' do
+        let(:error_message) { 'error message' }
+
+        context 'without http_status' do
+          before do
+            expect(issue_details_service).to receive(:execute)
+              .and_return(status: :error, message: error_message)
+          end
+
+          it 'returns 400 with message' do
+            get :details, params: issue_params(issue_id: issue_id, format: :json)
+
+            expect(response).to have_gitlab_http_status(:bad_request)
+            expect(json_response['message']).to eq(error_message)
+          end
+        end
+
+        context 'with explicit http_status' do
+          let(:http_status) { :no_content }
+
+          before do
+            expect(issue_details_service).to receive(:execute).and_return(
+              status: :error,
+              message: error_message,
+              http_status: http_status
+            )
+          end
+
+          it 'returns http_status with message' do
+            get :details, params: issue_params(issue_id: issue_id, format: :json)
+
+            expect(response).to have_gitlab_http_status(http_status)
+            expect(json_response['message']).to eq(error_message)
+          end
+        end
+      end
+    end
+  end
+
+  describe 'GET #stack_trace' do
+    let_it_be(:issue_id) { 1234 }
+
+    let(:issue_stack_trace_service) { spy(:issue_stack_trace_service) }
+
+    let(:permitted_params) do
+      ActionController::Parameters.new(
+        { issue_id: issue_id.to_s }
+      ).permit!
+    end
+
+    before do
+      expect(ErrorTracking::IssueLatestEventService)
+        .to receive(:new).with(project, user, permitted_params)
+        .and_return(issue_stack_trace_service)
+    end
+
+    describe 'format json' do
+      context 'awaiting data' do
+        before do
+          expect(issue_stack_trace_service).to receive(:execute)
+            .and_return(status: :error, http_status: :no_content)
+        end
+
+        it 'returns no data' do
+          get :stack_trace, params: issue_params(issue_id: issue_id, format: :json)
+
+          expect(response).to have_gitlab_http_status(:no_content)
+        end
+      end
+
+      context 'service result is successful' do
+        before do
+          expect(issue_stack_trace_service).to receive(:execute)
+            .and_return(status: :success, latest_event: error_event)
+        end
+
+        let(:error_event) { build(:error_tracking_error_event) }
+
+        it 'returns an error' do
+          get :stack_trace, params: issue_params(issue_id: issue_id, format: :json)
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(response).to match_response_schema('error_tracking/issue_stack_trace')
+          expect(json_response['error']).to eq(error_event.as_json)
+        end
+      end
+
+      context 'service result is erroneous' do
+        let(:error_message) { 'error message' }
+
+        context 'without http_status' do
+          before do
+            expect(issue_stack_trace_service).to receive(:execute)
+              .and_return(status: :error, message: error_message)
+          end
+
+          it 'returns 400 with message' do
+            get :stack_trace, params: issue_params(issue_id: issue_id, format: :json)
+
+            expect(response).to have_gitlab_http_status(:bad_request)
+            expect(json_response['message']).to eq(error_message)
+          end
+        end
+
+        context 'with explicit http_status' do
+          let(:http_status) { :no_content }
+
+          before do
+            expect(issue_stack_trace_service).to receive(:execute).and_return(
+              status: :error,
+              message: error_message,
+              http_status: http_status
+            )
+          end
+
+          it 'returns http_status with message' do
+            get :stack_trace, params: issue_params(issue_id: issue_id, format: :json)
+
+            expect(response).to have_gitlab_http_status(http_status)
+            expect(json_response['message']).to eq(error_message)
+          end
+        end
+      end
+    end
+  end
+
   private
 
+  def issue_params(opts = {})
+    project_params.reverse_merge(opts)
+  end
+
   def project_params(opts = {})
     opts.reverse_merge(namespace_id: project.namespace, project_id: project)
   end
diff --git a/spec/controllers/uploads_controller_spec.rb b/spec/controllers/uploads_controller_spec.rb
index 1bcf3bb106b..f35babc1b56 100644
--- a/spec/controllers/uploads_controller_spec.rb
+++ b/spec/controllers/uploads_controller_spec.rb
@@ -228,10 +228,10 @@ describe UploadsController do
             user.block
           end
 
-          it "redirects to the sign in page" do
+          it "responds with status 401" do
             get :show, params: { model: "user", mounted_as: "avatar", id: user.id, filename: "dk.png" }
 
-            expect(response).to redirect_to(new_user_session_path)
+            expect(response).to have_gitlab_http_status(401)
           end
         end
 
@@ -320,10 +320,10 @@ describe UploadsController do
         end
 
         context "when not signed in" do
-          it "redirects to the sign in page" do
+          it "responds with status 401" do
             get :show, params: { model: "project", mounted_as: "avatar", id: project.id, filename: "dk.png" }
 
-            expect(response).to redirect_to(new_user_session_path)
+            expect(response).to have_gitlab_http_status(401)
           end
         end
 
@@ -343,10 +343,10 @@ describe UploadsController do
                 project.add_maintainer(user)
               end
 
-              it "redirects to the sign in page" do
+              it "responds with status 401" do
                 get :show, params: { model: "project", mounted_as: "avatar", id: project.id, filename: "dk.png" }
 
-                expect(response).to redirect_to(new_user_session_path)
+                expect(response).to have_gitlab_http_status(401)
               end
             end
 
@@ -439,10 +439,10 @@ describe UploadsController do
                 user.block
               end
 
-              it "redirects to the sign in page" do
+              it "responds with status 401" do
                 get :show, params: { model: "group", mounted_as: "avatar", id: group.id, filename: "dk.png" }
 
-                expect(response).to redirect_to(new_user_session_path)
+                expect(response).to have_gitlab_http_status(401)
               end
             end
 
@@ -526,10 +526,10 @@ describe UploadsController do
         end
 
         context "when not signed in" do
-          it "redirects to the sign in page" do
+          it "responds with status 401" do
             get :show, params: { model: "note", mounted_as: "attachment", id: note.id, filename: "dk.png" }
 
-            expect(response).to redirect_to(new_user_session_path)
+            expect(response).to have_gitlab_http_status(401)
           end
         end
 
@@ -549,10 +549,10 @@ describe UploadsController do
                 project.add_maintainer(user)
               end
 
-              it "redirects to the sign in page" do
+              it "responds with status 401" do
                 get :show, params: { model: "note", mounted_as: "attachment", id: note.id, filename: "dk.png" }
 
-                expect(response).to redirect_to(new_user_session_path)
+                expect(response).to have_gitlab_http_status(401)
               end
             end
 
diff --git a/spec/db/schema_spec.rb b/spec/db/schema_spec.rb
index d340cec8b70..e8b30868801 100644
--- a/spec/db/schema_spec.rb
+++ b/spec/db/schema_spec.rb
@@ -13,7 +13,7 @@ describe 'Database schema' do
   # EE: edit the ee/spec/db/schema_support.rb
   IGNORED_FK_COLUMNS = {
     abuse_reports: %w[reporter_id user_id],
-    application_settings: %w[performance_bar_allowed_group_id slack_app_id snowplow_site_id eks_account_id eks_access_key_id],
+    application_settings: %w[performance_bar_allowed_group_id slack_app_id snowplow_app_id eks_account_id eks_access_key_id],
     approvers: %w[target_id user_id],
     approvals: %w[user_id],
     approver_groups: %w[target_id],
diff --git a/spec/factories/error_tracking/detailed_error.rb b/spec/factories/error_tracking/detailed_error.rb
new file mode 100644
index 00000000000..cf7de2ece96
--- /dev/null
+++ b/spec/factories/error_tracking/detailed_error.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :detailed_error_tracking_error, class: Gitlab::ErrorTracking::DetailedError do
+    id { 'id' }
+    title { 'title' }
+    type { 'error' }
+    user_count { 1 }
+    count { 2 }
+    first_seen { Time.now }
+    last_seen { Time.now }
+    message { 'message' }
+    culprit { 'culprit' }
+    external_url { 'http://example.com/id' }
+    external_base_url { 'http://example.com' }
+    project_id { 'project1' }
+    project_name { 'project name' }
+    project_slug { 'project_name' }
+    short_id { 'ID' }
+    status { 'unresolved' }
+    frequency { [] }
+    first_release_last_commit { '68c914da9' }
+    last_release_last_commit { '9ad419c86' }
+    first_release_short_version { 'abc123' }
+    last_release_short_version { 'abc123' }
+
+    skip_create
+  end
+end
diff --git a/spec/factories/error_tracking/error_event.rb b/spec/factories/error_tracking/error_event.rb
new file mode 100644
index 00000000000..44c127e7bf5
--- /dev/null
+++ b/spec/factories/error_tracking/error_event.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :error_tracking_error_event, class: Gitlab::ErrorTracking::ErrorEvent do
+    issue_id { 'id' }
+    date_received { Time.now.iso8601 }
+    stack_trace_entries do
+      {
+        'stacktrace' =>
+          {
+            'frames' => [{ 'file' => 'test.rb' }]
+          }
+      }
+    end
+
+    skip_create
+  end
+end
diff --git a/spec/features/projects/members/member_leaves_project_spec.rb b/spec/features/projects/members/member_leaves_project_spec.rb
index fb1165838c7..cb7a405e821 100644
--- a/spec/features/projects/members/member_leaves_project_spec.rb
+++ b/spec/features/projects/members/member_leaves_project_spec.rb
@@ -20,7 +20,7 @@ describe 'Projects > Members > Member leaves project' do
     expect(project.users.exists?(user.id)).to be_falsey
   end
 
-  it 'user leaves project by url param', :js do
+  it 'user leaves project by url param', :js, :quarantine do
     visit project_path(project, leave: 1)
 
     page.accept_confirm
diff --git a/spec/fixtures/api/schemas/error_tracking/error.json b/spec/fixtures/api/schemas/error_tracking/error.json
index df2c02d7d5d..3f65105681e 100644
--- a/spec/fixtures/api/schemas/error_tracking/error.json
+++ b/spec/fixtures/api/schemas/error_tracking/error.json
@@ -4,7 +4,14 @@
     "external_url",
     "last_seen",
     "message",
-    "type"
+    "type",
+    "title",
+    "project_id",
+    "project_name",
+    "project_slug",
+    "short_id",
+    "status",
+    "frequency"
   ],
   "properties" : {
     "id": { "type": "string"},
@@ -15,7 +22,14 @@
     "culprit": { "type": "string" },
     "count": { "type": "integer"},
     "external_url": { "type": "string" },
-    "user_count": { "type": "integer"}
+    "user_count": { "type": "integer"},
+    "title": { "type": "string"},
+    "project_id": { "type": "string"},
+    "project_name": { "type": "string"},
+    "project_slug": { "type": "string"},
+    "short_id": { "type": "string"},
+    "status": { "type": "string"},
+    "frequency": { "type": "array"}
   },
-  "additionalProperties": true
+  "additionalProperties": false
 }
diff --git a/spec/fixtures/api/schemas/error_tracking/error_detailed.json b/spec/fixtures/api/schemas/error_tracking/error_detailed.json
new file mode 100644
index 00000000000..40d6773f0e6
--- /dev/null
+++ b/spec/fixtures/api/schemas/error_tracking/error_detailed.json
@@ -0,0 +1,45 @@
+{
+  "type": "object",
+  "required" : [
+    "external_url",
+    "external_base_url",
+    "last_seen",
+    "message",
+    "type",
+    "title",
+    "project_id",
+    "project_name",
+    "project_slug",
+    "short_id",
+    "status",
+    "frequency",
+    "first_release_last_commit",
+    "last_release_last_commit",
+    "first_release_short_version",
+    "last_release_short_version"
+  ],
+  "properties" : {
+    "id": { "type": "string"},
+    "first_seen": { "type": "string", "format": "date-time" },
+    "last_seen": { "type": "string", "format": "date-time" },
+    "type": { "type": "string" },
+    "message": { "type": "string" },
+    "culprit": { "type": "string" },
+    "count": { "type": "integer"},
+    "external_url": { "type": "string" },
+    "external_base_url": { "type": "string" },
+    "user_count": { "type": "integer"},
+    "title": { "type": "string"},
+    "project_id": { "type": "string"},
+    "project_name": { "type": "string"},
+    "project_slug": { "type": "string"},
+    "short_id": { "type": "string"},
+    "status": { "type": "string"},
+    "frequency": { "type": "array"},
+    "first_release_last_commit": { "type": ["string", "null"] },
+    "last_release_last_commit": { "type": ["string", "null"] },
+    "first_release_short_version": { "type": ["string", "null"] },
+    "last_release_short_version": { "type": ["string", "null"] }
+  },
+  "additionalProperties": false
+}
diff --git a/spec/fixtures/api/schemas/error_tracking/error_stack_trace.json b/spec/fixtures/api/schemas/error_tracking/error_stack_trace.json
new file mode 100644
index 00000000000..a684dd0496a
--- /dev/null
+++ b/spec/fixtures/api/schemas/error_tracking/error_stack_trace.json
@@ -0,0 +1,14 @@
+{
+  "type": "object",
+  "required": [
+    "issue_id",
+    "stack_trace_entries",
+    "date_received"
+  ],
+  "properties": {
+    "issue_id": { "type": ["string", "integer"] },
+    "stack_trace_entries": { "type": "object" },
+    "date_received": { "type": "string" }
+  },
+  "additionalProperties": false
+}
diff --git a/spec/fixtures/api/schemas/error_tracking/issue_detailed.json b/spec/fixtures/api/schemas/error_tracking/issue_detailed.json
new file mode 100644
index 00000000000..b5adea6fc62
--- /dev/null
+++ b/spec/fixtures/api/schemas/error_tracking/issue_detailed.json
@@ -0,0 +1,11 @@
+{
+  "type": "object",
+  "required": [
+    "error"
+  ],
+  "properties": {
+    "error": { "$ref": "error_detailed.json" }
+  },
+  "additionalProperties": false
+}
+
diff --git a/spec/fixtures/api/schemas/error_tracking/issue_stack_trace.json b/spec/fixtures/api/schemas/error_tracking/issue_stack_trace.json
new file mode 100644
index 00000000000..7ec1ae63609
--- /dev/null
+++ b/spec/fixtures/api/schemas/error_tracking/issue_stack_trace.json
@@ -0,0 +1,11 @@
+{
+  "type": "object",
+  "required": [
+    "error"
+  ],
+  "properties": {
+    "error": { "$ref": "error_stack_trace.json" }
+  },
+  "additionalProperties": false
+}
+
diff --git a/spec/helpers/application_settings_helper_spec.rb b/spec/helpers/application_settings_helper_spec.rb
index e466150fa46..a5e8370a715 100644
--- a/spec/helpers/application_settings_helper_spec.rb
+++ b/spec/helpers/application_settings_helper_spec.rb
@@ -38,7 +38,7 @@ describe ApplicationSettingsHelper do
   it_behaves_like 'when HTTP protocol is in use', 'http'
 
   context 'with tracking parameters' do
-    it { expect(visible_attributes).to include(*%i(snowplow_collector_hostname snowplow_cookie_domain snowplow_enabled snowplow_site_id)) }
+    it { expect(visible_attributes).to include(*%i(snowplow_collector_hostname snowplow_cookie_domain snowplow_enabled snowplow_app_id)) }
     it { expect(visible_attributes).to include(*%i(pendo_enabled pendo_url)) }
   end
 
diff --git a/spec/lib/gitlab/ci/config/entry/default_spec.rb b/spec/lib/gitlab/ci/config/entry/default_spec.rb
index f09df698f68..a0856037340 100644
--- a/spec/lib/gitlab/ci/config/entry/default_spec.rb
+++ b/spec/lib/gitlab/ci/config/entry/default_spec.rb
@@ -26,7 +26,7 @@ describe Gitlab::Ci::Config::Entry::Default do
       it 'contains the expected node names' do
         expect(described_class.nodes.keys)
           .to match_array(%i[before_script image services
-                             after_script cache])
+                             after_script cache interruptible])
       end
     end
   end
diff --git a/spec/lib/gitlab/ci/config/entry/job_spec.rb b/spec/lib/gitlab/ci/config/entry/job_spec.rb
index 9fe18caf689..fe83171c57a 100644
--- a/spec/lib/gitlab/ci/config/entry/job_spec.rb
+++ b/spec/lib/gitlab/ci/config/entry/job_spec.rb
@@ -24,7 +24,7 @@ describe Gitlab::Ci::Config::Entry::Job do
       let(:result) do
         %i[before_script script stage type after_script cache
            image services only except rules needs variables artifacts
-           environment coverage retry]
+           environment coverage retry interruptible]
       end
 
       it { is_expected.to match_array result }
diff --git a/spec/lib/gitlab/ci/yaml_processor_spec.rb b/spec/lib/gitlab/ci/yaml_processor_spec.rb
index dc7bbc519ee..5a173470dfe 100644
--- a/spec/lib/gitlab/ci/yaml_processor_spec.rb
+++ b/spec/lib/gitlab/ci/yaml_processor_spec.rb
@@ -108,6 +108,25 @@ module Gitlab
 
             it { expect(subject[:interruptible]).to be_falsy }
           end
+
+          it "returns interruptible when overridden for job" do
+            config = YAML.dump({ default: { interruptible: true },
+                                 rspec: { script: "rspec" } })
+
+            config_processor = Gitlab::Ci::YamlProcessor.new(config)
+
+            expect(config_processor.stage_builds_attributes("test").size).to eq(1)
+            expect(config_processor.stage_builds_attributes("test").first).to eq({
+              stage: "test",
+              stage_idx: 2,
+              name: "rspec",
+              options: { script: ["rspec"] },
+              interruptible: true,
+              allow_failure: false,
+              when: "on_success",
+              yaml_variables: []
+            })
+          end
         end
 
         describe 'retry entry' do
diff --git a/spec/lib/gitlab/tracking_spec.rb b/spec/lib/gitlab/tracking_spec.rb
index 0bb9d6c331f..dc877f20cae 100644
--- a/spec/lib/gitlab/tracking_spec.rb
+++ b/spec/lib/gitlab/tracking_spec.rb
@@ -8,7 +8,7 @@ describe Gitlab::Tracking do
     stub_application_setting(snowplow_enabled: true)
     stub_application_setting(snowplow_collector_hostname: 'gitfoo.com')
     stub_application_setting(snowplow_cookie_domain: '.gitfoo.com')
-    stub_application_setting(snowplow_site_id: '_abc123_')
+    stub_application_setting(snowplow_app_id: '_abc123_')
     stub_application_setting(snowplow_iglu_registry_url: 'https://example.org')
   end
 
diff --git a/spec/migrations/fill_productivity_analytics_start_date_spec.rb b/spec/migrations/fill_productivity_analytics_start_date_spec.rb
new file mode 100644
index 00000000000..7cbba9ef20e
--- /dev/null
+++ b/spec/migrations/fill_productivity_analytics_start_date_spec.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'migrate', '20191004081520_fill_productivity_analytics_start_date.rb')
+
+describe FillProductivityAnalyticsStartDate, :migration do
+  let(:settings_table) { table('application_settings') }
+  let(:metrics_table) { table('merge_request_metrics') }
+
+  before do
+    settings_table.create!
+  end
+
+  context 'with NO productivity analytics data available' do
+    it 'sets start_date to NOW' do
+      expect { migrate! }.to change {
+        settings_table.first&.productivity_analytics_start_date
+      }.to(be_like_time(Time.now))
+    end
+  end
+
+  context 'with productivity analytics data available' do
+    before do
+      ActiveRecord::Base.transaction do
+        ActiveRecord::Base.connection.execute('ALTER TABLE merge_request_metrics DISABLE TRIGGER ALL')
+        metrics_table.create!(merged_at: Time.parse('2019-09-09'), commits_count: nil, merge_request_id: 3)
+        metrics_table.create!(merged_at: Time.parse('2019-10-10'), commits_count: 5, merge_request_id: 1)
+        metrics_table.create!(merged_at: Time.parse('2019-11-11'), commits_count: 10, merge_request_id: 2)
+        ActiveRecord::Base.connection.execute('ALTER TABLE merge_request_metrics ENABLE TRIGGER ALL')
+      end
+    end
+
+    it 'set start_date to earliest merged_at value with PA data available' do
+      expect { migrate! }.to change {
+        settings_table.first&.productivity_analytics_start_date
+      }.to(be_like_time(Time.parse('2019-10-10')))
+    end
+  end
+end
diff --git a/spec/requests/api/settings_spec.rb b/spec/requests/api/settings_spec.rb
index 5aba798f2c2..1b58fb1dab1 100644
--- a/spec/requests/api/settings_spec.rb
+++ b/spec/requests/api/settings_spec.rb
@@ -178,7 +178,7 @@ describe API::Settings, 'Settings' do
           snowplow_collector_hostname: "snowplow.example.com",
           snowplow_cookie_domain: ".example.com",
           snowplow_enabled: true,
-          snowplow_site_id: "site_id",
+          snowplow_app_id: "app_id",
           snowplow_iglu_registry_url: 'https://example.com'
         }
       end
diff --git a/spec/requests/user_avatar_spec.rb b/spec/requests/user_avatar_spec.rb
new file mode 100644
index 00000000000..9451674161c
--- /dev/null
+++ b/spec/requests/user_avatar_spec.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'Loading a user avatar' do
+  let(:user) { create(:user, :with_avatar) }
+
+  context 'when logged in' do
+    # The exact query count will vary depending on the 2FA settings of the
+    # instance, group, and user. Removing those extra 2FA queries in this case
+    # may not be a good idea, so we just set up the ideal case.
+    before do
+      stub_application_setting(require_two_factor_authentication: true)
+
+      login_as(create(:user, :two_factor))
+    end
+
+    # One each for: current user, avatar user, and upload record
+    it 'only performs three SQL queries' do
+      get user.avatar_url # Skip queries on first application load
+
+      expect(response).to have_gitlab_http_status(200)
+      expect { get user.avatar_url }.not_to exceed_query_limit(3)
+    end
+  end
+
+  context 'when logged out' do
+    # One each for avatar user and upload record
+    it 'only performs two SQL queries' do
+      get user.avatar_url # Skip queries on first application load
+
+      expect(response).to have_gitlab_http_status(200)
+      expect { get user.avatar_url }.not_to exceed_query_limit(2)
+    end
+  end
+end
diff --git a/spec/services/error_tracking/issue_details_service_spec.rb b/spec/services/error_tracking/issue_details_service_spec.rb
new file mode 100644
index 00000000000..4d5505bb5a9
--- /dev/null
+++ b/spec/services/error_tracking/issue_details_service_spec.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe ErrorTracking::IssueDetailsService do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:project) { create(:project) }
+
+  let(:sentry_url) { 'https://sentrytest.gitlab.com/api/0/projects/sentry-org/sentry-project' }
+  let(:token) { 'test-token' }
+  let(:result) { subject.execute }
+
+  let(:error_tracking_setting) do
+    create(:project_error_tracking_setting, api_url: sentry_url, token: token, project: project)
+  end
+
+  subject { described_class.new(project, user) }
+
+  before do
+    expect(project).to receive(:error_tracking_setting).at_least(:once).and_return(error_tracking_setting)
+
+    project.add_reporter(user)
+  end
+
+  describe '#execute' do
+    context 'with authorized user' do
+      context 'when issue_details returns a detailed error' do
+        let(:detailed_error) { build(:detailed_error_tracking_error) }
+
+        before do
+          expect(error_tracking_setting)
+            .to receive(:issue_details).and_return(issue: detailed_error)
+        end
+
+        it 'returns the detailed error' do
+          expect(result).to eq(status: :success, issue: detailed_error)
+        end
+      end
+
+      include_examples 'error tracking service data not ready', :issue_details
+      include_examples 'error tracking service sentry error handling', :issue_details
+      include_examples 'error tracking service http status handling', :issue_details
+    end
+
+    include_examples 'error tracking service unauthorized user'
+    include_examples 'error tracking service disabled'
+  end
+end
diff --git a/spec/services/error_tracking/issue_latest_event_service_spec.rb b/spec/services/error_tracking/issue_latest_event_service_spec.rb
new file mode 100644
index 00000000000..cda15042814
--- /dev/null
+++ b/spec/services/error_tracking/issue_latest_event_service_spec.rb
@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe ErrorTracking::IssueLatestEventService do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:project) { create(:project) }
+
+  let(:sentry_url) { 'https://sentrytest.gitlab.com/api/0/projects/sentry-org/sentry-project' }
+  let(:token) { 'test-token' }
+  let(:result) { subject.execute }
+
+  let(:error_tracking_setting) do
+    create(:project_error_tracking_setting, api_url: sentry_url, token: token, project: project)
+  end
+
+  subject { described_class.new(project, user) }
+
+  before do
+    expect(project).to receive(:error_tracking_setting).at_least(:once).and_return(error_tracking_setting)
+
+    project.add_reporter(user)
+  end
+
+  describe '#execute' do
+    context 'with authorized user' do
+      context 'when issue_latest_event returns an error event' do
+        let(:error_event) { build(:error_tracking_error_event) }
+
+        before do
+          expect(error_tracking_setting)
+            .to receive(:issue_latest_event).and_return(latest_event: error_event)
+        end
+
+        it 'returns the error event' do
+          expect(result).to eq(status: :success, latest_event: error_event)
+        end
+      end
+
+      include_examples 'error tracking service data not ready', :issue_latest_event
+      include_examples 'error tracking service sentry error handling', :issue_latest_event
+      include_examples 'error tracking service http status handling', :issue_latest_event
+    end
+
+    include_examples 'error tracking service unauthorized user'
+    include_examples 'error tracking service disabled'
+  end
+end
diff --git a/spec/services/error_tracking/list_issues_service_spec.rb b/spec/services/error_tracking/list_issues_service_spec.rb
index 3a8f3069911..fce790f708d 100644
--- a/spec/services/error_tracking/list_issues_service_spec.rb
+++ b/spec/services/error_tracking/list_issues_service_spec.rb
@@ -37,93 +37,12 @@ describe ErrorTracking::ListIssuesService do
         end
       end
 
-      context 'when list_sentry_issues returns nil' do
-        before do
-          expect(error_tracking_setting)
-            .to receive(:list_sentry_issues).and_return(nil)
-        end
-
-        it 'result is not ready' do
-          expect(result).to eq(
-            status: :error, http_status: :no_content, message: 'Not ready. Try again later')
-        end
-      end
-
-      context 'when list_sentry_issues returns error' do
-        before do
-          allow(error_tracking_setting)
-            .to receive(:list_sentry_issues)
-            .and_return(
-              error: 'Sentry response status code: 401',
-              error_type: ErrorTracking::ProjectErrorTrackingSetting::SENTRY_API_ERROR_TYPE_NON_20X_RESPONSE
-            )
-        end
-
-        it 'returns the error' do
-          expect(result).to eq(
-            status: :error,
-            http_status: :bad_request,
-            message: 'Sentry response status code: 401'
-          )
-        end
-      end
-
-      context 'when list_sentry_issues returns error with http_status' do
-        before do
-          allow(error_tracking_setting)
-            .to receive(:list_sentry_issues)
-            .and_return(
-              error: 'Sentry API response is missing keys. key not found: "id"',
-              error_type: ErrorTracking::ProjectErrorTrackingSetting::SENTRY_API_ERROR_TYPE_MISSING_KEYS
-            )
-        end
-
-        it 'returns the error with correct http_status' do
-          expect(result).to eq(
-            status: :error,
-            http_status: :internal_server_error,
-            message: 'Sentry API response is missing keys. key not found: "id"'
-          )
-        end
-      end
+      include_examples 'error tracking service data not ready', :list_sentry_issues
+      include_examples 'error tracking service sentry error handling', :list_sentry_issues
+      include_examples 'error tracking service http status handling', :list_sentry_issues
     end
 
-    context 'with unauthorized user' do
-      let(:unauthorized_user) { create(:user) }
-
-      subject { described_class.new(project, unauthorized_user) }
-
-      it 'returns error' do
-        result = subject.execute
-
-        expect(result).to include(
-          status: :error,
-          message: 'Access denied',
-          http_status: :unauthorized
-        )
-      end
-    end
-
-    context 'with error tracking disabled' do
-      before do
-        error_tracking_setting.enabled = false
-      end
-
-      it 'raises error' do
-        result = subject.execute
-
-        expect(result).to include(status: :error, message: 'Error Tracking is not enabled')
-      end
-    end
-  end
-
-  describe '#sentry_external_url' do
-    let(:external_url) { 'https://sentrytest.gitlab.com/sentry-org/sentry-project' }
-
-    it 'calls ErrorTracking::ProjectErrorTrackingSetting' do
-      expect(error_tracking_setting).to receive(:sentry_external_url).and_call_original
-
-      subject.external_url
-    end
+    include_examples 'error tracking service unauthorized user'
+    include_examples 'error tracking service disabled'
   end
 end
diff --git a/spec/services/error_tracking/list_projects_service_spec.rb b/spec/services/error_tracking/list_projects_service_spec.rb
index a272a604184..cd4b835e097 100644
--- a/spec/services/error_tracking/list_projects_service_spec.rb
+++ b/spec/services/error_tracking/list_projects_service_spec.rb
@@ -127,7 +127,7 @@ describe ErrorTracking::ListProjectsService do
       end
 
       it 'returns error' do
-        expect(result).to include(status: :error, message: 'access denied')
+        expect(result).to include(status: :error, message: 'Access denied', http_status: :unauthorized)
       end
     end
 
diff --git a/spec/support/shared_examples/services/error_tracking_service_shared_examples.rb b/spec/support/shared_examples/services/error_tracking_service_shared_examples.rb
new file mode 100644
index 00000000000..83c6d89e560
--- /dev/null
+++ b/spec/support/shared_examples/services/error_tracking_service_shared_examples.rb
@@ -0,0 +1,89 @@
+# frozen_string_literal: true
+
+shared_examples 'error tracking service data not ready' do |service_call|
+  context "when #{service_call} returns nil" do
+    before do
+      expect(error_tracking_setting)
+        .to receive(service_call).and_return(nil)
+    end
+
+    it 'result is not ready' do
+      expect(result).to eq(
+        status: :error, http_status: :no_content, message: 'Not ready. Try again later')
+    end
+  end
+end
+
+shared_examples 'error tracking service sentry error handling' do |service_call|
+  context "when #{service_call} returns error" do
+    before do
+      allow(error_tracking_setting)
+        .to receive(service_call)
+        .and_return(
+          error: 'Sentry response status code: 401',
+          error_type: ErrorTracking::ProjectErrorTrackingSetting::SENTRY_API_ERROR_TYPE_NON_20X_RESPONSE
+        )
+    end
+
+    it 'returns the error' do
+      expect(result).to eq(
+        status: :error,
+        http_status: :bad_request,
+        message: 'Sentry response status code: 401'
+      )
+    end
+  end
+end
+
+shared_examples 'error tracking service http status handling' do |service_call|
+  context "when #{service_call} returns error with http_status" do
+    before do
+      allow(error_tracking_setting)
+        .to receive(service_call)
+        .and_return(
+          error: 'Sentry API response is missing keys. key not found: "id"',
+          error_type: ErrorTracking::ProjectErrorTrackingSetting::SENTRY_API_ERROR_TYPE_MISSING_KEYS
+        )
+    end
+
+    it 'returns the error with correct http_status' do
+      expect(result).to eq(
+        status: :error,
+        http_status: :internal_server_error,
+        message: 'Sentry API response is missing keys. key not found: "id"'
+      )
+    end
+  end
+end
+
+shared_examples 'error tracking service unauthorized user' do
+  context 'with unauthorized user' do
+    let(:unauthorized_user) { create(:user) }
+
+    subject { described_class.new(project, unauthorized_user) }
+
+    it 'returns error' do
+      result = subject.execute
+
+      expect(result).to include(
+        status: :error,
+        message: 'Access denied',
+        http_status: :unauthorized
+      )
+    end
+  end
+end
+
+shared_examples 'error tracking service disabled' do
+  context 'with error tracking disabled' do
+    before do
+      error_tracking_setting.enabled = false
+    end
+
+    it 'raises error' do
+      result = subject.execute
+
+      expect(result).to include(status: :error, message: 'Error Tracking is not enabled')
+    end
+  end
+end