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Posted to dev@kafka.apache.org by "Prashant (JIRA)" <ji...@apache.org> on 2019/08/16 09:55:00 UTC

[jira] [Created] (KAFKA-8808) Kafka Inconsistent Retention Period across partitions

Prashant created KAFKA-8808:
-------------------------------

             Summary: Kafka Inconsistent Retention Period across partitions
                 Key: KAFKA-8808
                 URL: https://issues.apache.org/jira/browse/KAFKA-8808
             Project: Kafka
          Issue Type: Bug
          Components: log, log cleaner
    Affects Versions: 1.0.0
            Reporter: Prashant


Our topic is created with  retention period of 3 days.  Topic has four partitions.  Broker level default is 12 hour. 

Some partition's segment get deleted even before 3 days. Logs show that segment is marked for deletion because it exceeded *43200000ms*  = 12 hours. 

 

"INFO Found deletable segments with base offsets [43275] due to retention time *43200000ms* breach (kafka.log.Log)"

 

This does not happen for all partitions.  Post full cluster bounce , partitions facing this issue change. 

 

*Topic config :* 

Topic:TOPICNAME PartitionCount:4 ReplicationFactor:2 Configs:retention.ms=259200000,segment.ms=43200000
 Topic: TOPICNAME Partition: 0 Leader: 1 Replicas: 1,8 Isr: 1,8
 Topic: TOPICNAME Partition: 1 Leader: 2 Replicas: 2,9 Isr: 9,2
 Topic: TOPICNAME Partition: 2 Leader: 3 Replicas: 3,1 Isr: 1,3
 Topic: TOPICNAME Partition: 3 Leader: 4 Replicas: 4,2 Isr: 4,2

 

*Broker config :*

log.retention.ms=43200000

 

 

 



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