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(POOLER-160) Revise Redis buckets

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Output from our discussion on histogram buckets for the Clone, Time to
ready and Redis connection buckets.
This commit is contained in:
John O'Connor 2020-06-30 17:49:42 +01:00
parent 85ff3f7022
commit 416f1f6e7b
1 changed files with 7 additions and 6 deletions
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13
lib/vmpooler/metrics/promstats.rb
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@ -14,10 +14,11 @@ module Vmpooler
M_HISTOGRAM = 4
# Customised Bucket set to use for the Pooler clone times set to more appropriate intervals.
POOLER_TIME_BUCKETS = [1.0, 2.5, 5.0, 10.0, 20.0, 50.0, 100.0, 200.0, 500.0, 1000.0, 2000.0].freeze
POOLER_CLONE_TIME_BUCKETS = [10.0, 20.0, 30.0, 40.0, 50.0, 60.0, 120.0, 180.0, 240.0, 300.0, 600.0].freeze
POOLER_READY_TIME_BUCKETS = [30.0, 60.0, 120.0, 180.0, 240.0, 300.0, 500.0, 800.0, 1200.0, 1600.0].freeze
# Same for redis connection times - this is the same as the current Prometheus Default.
# https://github.com/prometheus/client_ruby/blob/master/lib/prometheus/client/histogram.rb#L14
REDIS_CONNECT_BUCKETS = [0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10].freeze
REDIS_CONNECT_BUCKETS = [1.0, 2.0, 3.0, 5.0, 8.0, 13.0, 18.0, 23.0].freeze
@p_metrics = {}
@ -199,7 +200,7 @@ module Vmpooler
time_to_ready_state: {
mtype: M_HISTOGRAM,
torun: %i[manager],
buckets: POOLER_TIME_BUCKETS,
buckets: POOLER_READY_TIME_BUCKETS,
docstring: 'Time taken for machine to read ready state for pool',
prom_metric_prefix: "#{@metrics_prefix}_time_to_ready_state",
param_labels: %i[poolname]
@ -207,7 +208,7 @@ module Vmpooler
migrate: {
mtype: M_HISTOGRAM,
torun: %i[manager],
buckets: POOLER_TIME_BUCKETS,
buckets: POOLER_CLONE_TIME_BUCKETS,
docstring: 'vmpooler time taken to migrate machine for pool',
prom_metric_prefix: "#{@metrics_prefix}_migrate",
param_labels: %i[poolname]
@ -215,7 +216,7 @@ module Vmpooler
clone: {
mtype: M_HISTOGRAM,
torun: %i[manager],
buckets: POOLER_TIME_BUCKETS,
buckets: POOLER_CLONE_TIME_BUCKETS,
docstring: 'vmpooler time taken to clone machine',
prom_metric_prefix: "#{@metrics_prefix}_clone",
param_labels: %i[poolname]
@ -223,7 +224,7 @@ module Vmpooler
destroy: {
mtype: M_HISTOGRAM,
torun: %i[manager],
buckets: POOLER_TIME_BUCKETS,
buckets: POOLER_CLONE_TIME_BUCKETS,
docstring: 'vmpooler time taken to destroy machine',
prom_metric_prefix: "#{@metrics_prefix}_destroy",
param_labels: %i[poolname]