Monitor only final states

There is no reason to monitor transition states so we ignore
ready and active states. We can get ratio of completed vs failed
requests from final states.

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/gitlab/cluster/rack_timeout_observer.rb b/lib/gitlab/cluster/rack_timeout_observer.rb
index 2bc006b8011..5182b2be148 100644
--- a/lib/gitlab/cluster/rack_timeout_observer.rb
+++ b/lib/gitlab/cluster/rack_timeout_observer.rb
@@ -3,8 +3,10 @@
 module Gitlab
   module Cluster
     class RackTimeoutObserver
+      TRANSITION_STATES = %i(ready active).freeze
+
       def initialize
-        @counter = Gitlab::Metrics.counter(:rack_state_total, 'Number of requests in a given rack state')
+        @counter = Gitlab::Metrics.counter(:rack_requests_total, 'Number of requests in a given rack state')
       end
 
       # returns the Proc to be used as the observer callback block
@@ -17,6 +19,7 @@ module Gitlab
       def log_timeout_exception(env)
         info = env[::Rack::Timeout::ENV_INFO_KEY]
         return unless info
+        return if TRANSITION_STATES.include?(info.state)
 
         @counter.increment(labels(info, env))
       end