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# frozen_string_literal: true
require 'redis'
require 'peek-redis'
module Gitlab
module Peek
module RedisInstrumented
def call(*args, &block)
start = Time.now
super(*args, &block)
ensure
duration = (Time.now - start)
add_call_details(duration, args)
end
private
def add_call_details(duration, args)
# redis-rb passes an array (e.g. [:get, key])
return unless args.length == 1
detail_store << {
cmd: args.first,
duration: duration,
backtrace: Gitlab::Profiler.clean_backtrace(caller)
}
end
def detail_store
::Gitlab::SafeRequestStore['redis_call_details'] ||= []
end
end
end
end
module Peek
module Views
module RedisDetailed
def results
super.merge(details: details)
end
def details
detail_store
.sort { |a, b| b[:duration] <=> a[:duration] }
.map(&method(:format_call_details))
end
def detail_store
::Gitlab::SafeRequestStore['redis_call_details'] ||= []
end
def format_call_details(call)
call.merge(cmd: format_command(call[:cmd]),
duration: (call[:duration] * 1000).round(3))
end
def format_command(cmd)
# Scrub out the value of the SET calls to avoid binary
# data or large data from spilling into the view
if cmd.length >= 2 && cmd.first =~ /set/i
cmd[-1] = "<redacted>"
end
cmd.join(' ')
end
end
end
end
class Redis::Client
prepend Gitlab::Peek::RedisInstrumented
end
module Peek
module Views
class Redis < View
prepend Peek::Views::RedisDetailed
end
end
end
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