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(POOLER-170) Revise vmpooler usage stats

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Break down the usage stats into smaller groups so as to manage the
number of stat lines collected for Prometheus.

This may need some further revision to filter out Litmus stats, or
otherwise collect litmus usage information.
This commit is contained in:
John O'Connor 2020-06-16 17:11:33 +01:00
parent 72564de4b4
commit b6dcd77228
4 changed files with 126 additions and 67 deletions
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30
lib/vmpooler/metrics/promstats.rb
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@ -43,21 +43,29 @@ module Vmpooler
},
param_labels: %i[template_name]
},
usage: {
user: {
mtype: M_COUNTER,
docstring: 'Number of Pool Instances of this created',
prom_metric_prefix: "#{@metrics_prefix}_usage",
docstring: 'Number of Pool Instances this user created created',
prom_metric_prefix: "#{@metrics_prefix}_user",
param_labels: %i[user poolname]
},
user: {
# This metrics is leads to a lot of label values which is likely to challenge data storage
# on prometheus - see Best Practices: https://prometheus.io/docs/practices/naming/#labels
# So it is likely that this metric may need to be simplified or broken into a number
# of smaller metrics to capture the detail without challenging prometheus
usage_jenkins_instance: {
mtype: M_COUNTER,
docstring: 'vmpooler user counters',
prom_metric_prefix: "#{@metrics_prefix}_user",
param_labels: %i[user instancex value_stream branch project job_name component_to_test poolname]
docstring: 'Pools by Jenkins Instance usage',
prom_metric_prefix: "#{@metrics_prefix}_usage_jenkins_instance",
param_labels: %i[jenkins_instance value_stream poolname]
},
usage_branch_project: {
mtype: M_COUNTER,
docstring: 'Pools by branch/project usage',
prom_metric_prefix: "#{@metrics_prefix}_usage_branch_project",
param_labels: %i[branch project poolname]
},
usage_job_component: {
mtype: M_COUNTER,
docstring: 'Pools by job/component usage',
prom_metric_prefix: "#{@metrics_prefix}_usage_job_component",
param_labels: %i[job_name component_to_test poolname]
},
checkout: {
mtype: M_COUNTER,