[jira] [Created] (KAFKA-18980) OffsetMetadataManager#cleanupExpiredOffsets should record the number of records rather than topic partitions

[Chia-Ping Tsai (Jira)]

Chia-Ping Tsai created KAFKA-18980:
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             Summary: OffsetMetadataManager#cleanupExpiredOffsets should record 
the number of records rather than topic partitions
                 Key: KAFKA-18980
                 URL: https://issues.apache.org/jira/browse/KAFKA-18980
             Project: Kafka
          Issue Type: Improvement
            Reporter: Chia-Ping Tsai
            Assignee: Chia-Ping Tsai


this is not a bug as the number of records should be equal to number of topic 
partitions.

{code:java}
metrics.record(OFFSET_EXPIRED_SENSOR_NAME, expiredPartitions.size());
{code}

https://github.com/apache/kafka/blob/759fbbba8b977206ad189172f429acb97e98a798/group-coordinator/src/main/java/org/apache/kafka/coordinator/group/OffsetMetadataManager.java#L888



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