gitlab-org--gitlab-foss/lib/gitlab/sidekiq_logging/structured_logger.rb
Sean McGivern 9d2be75674 Limit Sidekiq args logging to 10 KB of JSON
When logging arguments from Sidekiq to JSON, restrict the size of `args`
to 10 KB (when converted to JSON). This is to avoid blowing up with
excessively large job payloads.
2019-01-22 10:54:12 +00:00

115 lines
3 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module SidekiqLogging
class StructuredLogger
START_TIMESTAMP_FIELDS = %w[created_at enqueued_at].freeze
DONE_TIMESTAMP_FIELDS = %w[started_at retried_at failed_at completed_at].freeze
MAXIMUM_JOB_ARGUMENTS_LENGTH = 10.kilobytes
def call(job, queue)
started_at = current_time
base_payload = parse_job(job)
Sidekiq.logger.info log_job_start(started_at, base_payload)
yield
Sidekiq.logger.info log_job_done(started_at, base_payload)
rescue => job_exception
Sidekiq.logger.warn log_job_done(started_at, base_payload, job_exception)
raise
end
private
def base_message(payload)
"#{payload['class']} JID-#{payload['jid']}"
end
def log_job_start(started_at, payload)
payload['message'] = "#{base_message(payload)}: start"
payload['job_status'] = 'start'
payload
end
def log_job_done(started_at, payload, job_exception = nil)
payload = payload.dup
payload['duration'] = elapsed(started_at)
payload['completed_at'] = Time.now.utc
message = base_message(payload)
if job_exception
payload['message'] = "#{message}: fail: #{payload['duration']} sec"
payload['job_status'] = 'fail'
payload['error_message'] = job_exception.message
payload['error'] = job_exception.class
payload['error_backtrace'] = backtrace_cleaner.clean(job_exception.backtrace)
else
payload['message'] = "#{message}: done: #{payload['duration']} sec"
payload['job_status'] = 'done'
end
convert_to_iso8601(payload, DONE_TIMESTAMP_FIELDS)
payload
end
def parse_job(job)
job = job.dup
# Add process id params
job['pid'] = ::Process.pid
job.delete('args') unless ENV['SIDEKIQ_LOG_ARGUMENTS']
job['args'] = limited_job_args(job['args']) if job['args']
convert_to_iso8601(job, START_TIMESTAMP_FIELDS)
job
end
def convert_to_iso8601(payload, keys)
keys.each do |key|
payload[key] = format_time(payload[key]) if payload[key]
end
end
def elapsed(start)
(current_time - start).round(3)
end
def current_time
Gitlab::Metrics::System.monotonic_time
end
def backtrace_cleaner
@backtrace_cleaner ||= ActiveSupport::BacktraceCleaner.new
end
def format_time(timestamp)
return timestamp if timestamp.is_a?(String)
Time.at(timestamp).utc.iso8601(3)
end
def limited_job_args(args)
return unless args.is_a?(Array)
total_length = 0
limited_args = args.take_while do |arg|
total_length += arg.to_json.length
total_length <= MAXIMUM_JOB_ARGUMENTS_LENGTH
end
limited_args.push('...') if total_length > MAXIMUM_JOB_ARGUMENTS_LENGTH
limited_args
end
end
end
end