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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