149 lines
4 KiB
Ruby
149 lines
4 KiB
Ruby
module Gitlab
|
|
module Metrics
|
|
extend Gitlab::CurrentSettings
|
|
|
|
RAILS_ROOT = Rails.root.to_s
|
|
METRICS_ROOT = Rails.root.join('lib', 'gitlab', 'metrics').to_s
|
|
PATH_REGEX = /^#{RAILS_ROOT}\/?/
|
|
|
|
def self.settings
|
|
@settings ||= {
|
|
enabled: current_application_settings[:metrics_enabled],
|
|
pool_size: current_application_settings[:metrics_pool_size],
|
|
timeout: current_application_settings[:metrics_timeout],
|
|
method_call_threshold: current_application_settings[:metrics_method_call_threshold],
|
|
host: current_application_settings[:metrics_host],
|
|
port: current_application_settings[:metrics_port],
|
|
sample_interval: current_application_settings[:metrics_sample_interval] || 15,
|
|
packet_size: current_application_settings[:metrics_packet_size] || 1
|
|
}
|
|
end
|
|
|
|
def self.enabled?
|
|
settings[:enabled] || false
|
|
end
|
|
|
|
def self.mri?
|
|
RUBY_ENGINE == 'ruby'
|
|
end
|
|
|
|
def self.method_call_threshold
|
|
# This is memoized since this method is called for every instrumented
|
|
# method. Loading data from an external cache on every method call slows
|
|
# things down too much.
|
|
@method_call_threshold ||= settings[:method_call_threshold]
|
|
end
|
|
|
|
def self.pool
|
|
@pool
|
|
end
|
|
|
|
def self.submit_metrics(metrics)
|
|
prepared = prepare_metrics(metrics)
|
|
|
|
pool.with do |connection|
|
|
prepared.each_slice(settings[:packet_size]) do |slice|
|
|
begin
|
|
connection.write_points(slice)
|
|
rescue StandardError
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def self.prepare_metrics(metrics)
|
|
metrics.map do |hash|
|
|
new_hash = hash.symbolize_keys
|
|
|
|
new_hash[:tags].each do |key, value|
|
|
if value.blank?
|
|
new_hash[:tags].delete(key)
|
|
else
|
|
new_hash[:tags][key] = escape_value(value)
|
|
end
|
|
end
|
|
|
|
new_hash
|
|
end
|
|
end
|
|
|
|
def self.escape_value(value)
|
|
value.to_s.gsub('=', '\\=')
|
|
end
|
|
|
|
# Measures the execution time of a block.
|
|
#
|
|
# Example:
|
|
#
|
|
# Gitlab::Metrics.measure(:find_by_username_duration) do
|
|
# User.find_by_username(some_username)
|
|
# end
|
|
#
|
|
# name - The name of the field to store the execution time in.
|
|
#
|
|
# Returns the value yielded by the supplied block.
|
|
def self.measure(name)
|
|
trans = current_transaction
|
|
|
|
return yield unless trans
|
|
|
|
real_start = Time.now.to_f
|
|
cpu_start = System.cpu_time
|
|
|
|
retval = yield
|
|
|
|
cpu_stop = System.cpu_time
|
|
real_stop = Time.now.to_f
|
|
|
|
real_time = (real_stop - real_start) * 1000.0
|
|
cpu_time = cpu_stop - cpu_start
|
|
|
|
trans.increment("#{name}_real_time", real_time)
|
|
trans.increment("#{name}_cpu_time", cpu_time)
|
|
trans.increment("#{name}_call_count", 1)
|
|
|
|
retval
|
|
end
|
|
|
|
# Adds a tag to the current transaction (if any)
|
|
#
|
|
# name - The name of the tag to add.
|
|
# value - The value of the tag.
|
|
def self.tag_transaction(name, value)
|
|
trans = current_transaction
|
|
|
|
trans.add_tag(name, value) if trans
|
|
end
|
|
|
|
# Sets the action of the current transaction (if any)
|
|
#
|
|
# action - The name of the action.
|
|
def self.action=(action)
|
|
trans = current_transaction
|
|
|
|
trans.action = action if trans
|
|
end
|
|
|
|
# Returns the prefix to use for the name of a series.
|
|
def self.series_prefix
|
|
@series_prefix ||= Sidekiq.server? ? 'sidekiq_' : 'rails_'
|
|
end
|
|
|
|
# When enabled this should be set before being used as the usual pattern
|
|
# "@foo ||= bar" is _not_ thread-safe.
|
|
if enabled?
|
|
@pool = ConnectionPool.new(size: settings[:pool_size], timeout: settings[:timeout]) do
|
|
host = settings[:host]
|
|
port = settings[:port]
|
|
|
|
InfluxDB::Client.
|
|
new(udp: { host: host, port: port })
|
|
end
|
|
end
|
|
|
|
# Allow access from other metrics related middlewares
|
|
def self.current_transaction
|
|
Transaction.current
|
|
end
|
|
end
|
|
end
|