Christian Tsatedem Kuete created KAFKA-8631:
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Summary: different behavior of the values of isrExpandsPerSec
Key: KAFKA-8631
URL: https://issues.apache.org/jira/browse/KAFKA-8631
Project: Kafka
Issue Type: Bug
Components: metrics
Affects Versions: 2.1.1
Reporter: Christian Tsatedem Kuete
We have a Kafka-Cluster in Production Environment and Test Environment. We
have a Monitoring-Solution with Metricbeat and Jolokia. The metric
"'kafka.server:name=IsrExpandsPerSec,type=ReplicaManager'" has different
behavior in PROD and Test Environment.
*Behavior in TEST Environment:*
* The value of _IsrExpandsPerSec_ is always the half of the total numder of
partitions in the Cluster. For example for a Total number of *88* Partitions
the _IsrExpandsPerSec_ is always *44.*
* The Value of IsrExpandsPerSec is never *0*
*Behavior in Production Environment:*
* The value of IsrExpandsPerSec is either the double of the total numder of
partitions in the Cluster or 0. For example for a Total number of *88*
Partitions the _IsrExpandsPerSec_ is either *176 or 0.*
* The Value of _IsrExpandsPerSec_ is *0,* when _isrShrinksPerSec is *12*._
* _The Value of_ _IsrExpandsPerSec_ _is_ *176*_*,* when_ _isrShrinksPerSec
is *0*._
We expect both values to be regularly 0.
Thanks in advance
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