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  1. Kafka
  2. KAFKA-8631

different behavior of the values of isrExpandsPerSec

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 2.1.1
    • None
    • metrics
    • None
    • Important

    Description

      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 number 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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            Unassigned Unassigned
            tsatedem Christian Tsatedem Kuete
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              Created:
              Updated: