[jira] [Created] (AMBARI-24203) Improve Kafka service check to check for under-replicated partitions

["Yolanda M. Davis (JIRA)" <ji...@apache.org>]

Yolanda M. Davis created AMBARI-24203:
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             Summary: Improve Kafka service check to check for under-replicated partitions
                 Key: AMBARI-24203
                 URL: https://issues.apache.org/jira/browse/AMBARI-24203
             Project: Ambari
          Issue Type: Bug
          Components: stacks
    Affects Versions: 2.7.0
            Reporter: Yolanda M. Davis
            Assignee: Yolanda M. Davis
             Fix For: 2.7.0


During Ambari Rolling Upgrade, we invoke Kafka Service check to ensure that Kafka is healthy. The current implementation only does basic topic creation/deletion. We need to extend the implementation to check for number of under-replicated partitions.

We have this support in kafka-topics.sh script which is already used in the kafka service check script. We need to extend above script to call below command
{noformat}
sh kafka-topics.sh --describe --zookeeper localhost:2181 --under-replicated-partitions
{noformat}
If the command output is empty, then there are no under replicated partotions.
If the output contains "Topic:" string, then there are some under replicated partitions, we can fail the service check.
{noformat}
sh kafka-topics.sh --describe --zookeeper localhost:2181 --under-replicated-partitions
 Topic: TEST Partition: 0 Leader: 1 Replicas: 1,2 Isr: 1
 Topic: TEST Partition: 1 Leader: 1 Replicas: 2,1 Isr: 1{noformat}



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