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  1. Kafka
  2. KAFKA-8631

different behavior of the values of isrExpandsPerSec

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 2.1.1
    • Fix Version/s: None
    • Component/s: metrics
    • Labels:
      None
    • Flags:
      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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            • Assignee:
              Unassigned
              Reporter:
              tsatedem Christian Tsatedem Kuete
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              • Created:
                Updated: