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From "Christian Tsatedem Kuete (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-8631) different behavior of the values of isrExpandsPerSec
Date Fri, 05 Jul 2019 11:59:00 GMT
Christian Tsatedem Kuete created KAFKA-8631:
-----------------------------------------------

             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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