Namespace not being used with Sidekiq Pro

[travisTheOrange]

We're using Datadog and have configured both DD and Sidekiq Pro to send Sidekiq metrics to our Datadog agent. However, when in Datadog the only way we can view the various metrics from Sidekiq is with the prefix jobs.*, rather than sidekiq.jobs.*.

Our Sidekiq config file (located in config/initializers/sidekiq.rb) looks like this:

require 'datadog/statsd' # gem 'dogstatsd-ruby'

Sidekiq.configure_server do |config|
  config.dogstatsd = ->{ Datadog::Statsd.new(socket_path: ENV['SOCKET_PATH'], namespace: 'sidekiq') }
  config.server_middleware do |chain|
    require 'sidekiq/middleware/server/statsd'
    chain.add Sidekiq::Middleware::Server::Statsd
  end
end

The first line within the Sidekiq.configure_server block was originally not there. Previously we had this line outside the config block, set as:

Sidekiq::Pro.dogstatsd = ->{ Datadog::Statsd.new(socket_path: ENV['SOCKET_PATH'], namespace:'sidekiq') }

Which resulted in no metrics being sent, maybe. We are seeing metrics in DD now, but we're unsure if it's because of the aforementioned code change or using the prefix jobs.* instead of sidekiq.jobs.*

[travisTheOrange]

Is anyone able to help with this?

[carlosroman]

Any reason why you've chosen the namespace as being sidekiq? This is causing all metrics to have sidekiq appended to them, see here.

[travisTheOrange]

@carlosroman are you suggesting that even metrics not belonging to Sidekiq would have the prefix sidekiq.*? So metrics from Datadog would all be prefixed with sidekiq.*?

And I'd say that in theory it would cause all metrics to have the sidekiq.* prefix, however, as per my raised issue, no metrics are being prefixed with sidekiq.*

[carlosroman]

Sorry, I thought you meant that all your metrics are getting sidekiq appended to them. So adding a namespace doesn't seem to actually prefix the metrics at the moment?

[travisTheOrange]

@carlosroman yeah exactly. Although I raised this issue in the Sidekiq repo and was told the issue is known and being worked on