Removed various default metrics tagsreduce-influxdb-tags

While it's useful to keep track of the different versions (Ruby, GitLab,
etc) doing so for every point wastes disk space and possibly also RAM
(which InfluxDB is all to eager to gobble up). If we want to see the
performance differences between different GitLab versions simply looking
at the performance since the last release date should suffice.

2 files changed, 2 insertions, 8 deletions

diff --git a/lib/gitlab/metrics/metric.rb b/lib/gitlab/metrics/metric.rb
index 79241f56874..753008df99a 100644
--- a/lib/gitlab/metrics/metric.rb
+++ b/lib/gitlab/metrics/metric.rb
@@ -19,11 +19,8 @@ module Gitlab
         {
           series: @series,
           tags:   @tags.merge(
-            hostname:       Metrics.hostname,
-            ruby_engine:    RUBY_ENGINE,
-            ruby_version:   RUBY_VERSION,
-            gitlab_version: Gitlab::VERSION,
-            process_type:   Sidekiq.server? ? 'sidekiq' : 'rails'
+            hostname:     Metrics.hostname,
+            process_type: Sidekiq.server? ? 'sidekiq' : 'rails'
           ),
           values:    @values,
           timestamp: @created_at.to_i * 1_000_000_000
diff --git a/spec/lib/gitlab/metrics/metric_spec.rb b/spec/lib/gitlab/metrics/metric_spec.rb
index ec39bc9cce8..aa76315c79c 100644
--- a/spec/lib/gitlab/metrics/metric_spec.rb
+++ b/spec/lib/gitlab/metrics/metric_spec.rb
@@ -39,9 +39,6 @@ describe Gitlab::Metrics::Metric do
         expect(hash[:tags]).to be_an_instance_of(Hash)
 
         expect(hash[:tags][:hostname]).to be_an_instance_of(String)
-        expect(hash[:tags][:ruby_engine]).to be_an_instance_of(String)
-        expect(hash[:tags][:ruby_version]).to be_an_instance_of(String)
-        expect(hash[:tags][:gitlab_version]).to be_an_instance_of(String)
         expect(hash[:tags][:process_type]).to be_an_instance_of(String)
       end