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Posted to dev@kafka.apache.org by "Michael Schiff (JIRA)" <ji...@apache.org> on 2016/11/28 01:20:59 UTC

[jira] [Created] (KAFKA-4451) Recovering empty replica yields negative offsets in index of compact partitions

Michael Schiff created KAFKA-4451:
-------------------------------------

             Summary: Recovering empty replica yields negative offsets in index of compact partitions
                 Key: KAFKA-4451
                 URL: https://issues.apache.org/jira/browse/KAFKA-4451
             Project: Kafka
          Issue Type: Bug
            Reporter: Michael Schiff
             Fix For: 0.9.0.1


Bringing up an empty broker.  

the partition for compact topic is not split into multiple log files.  All data is written into a single log file, causing offsets to overflow.

A dump of the affected broker shortly after it started replicating:
{code}
michael.schiff@stats-kafka09:~$ sudo /opt/kafka/bin/kafka-run-class.sh kafka.tools.DumpLogSegments --files /kafka/attainment_event-0/00000000000000000000.index | head -n 10
Dumping /kafka/attainment_event-0/00000000000000000000.index
offset: 1022071124 position: 1037612
offset: -1713432120 position: 1348740
offset: -886291423 position: 2397130
offset: -644750126 position: 3445630
offset: -57889876 position: 4493972
offset: 433950099 position: 5388461
offset: 1071769472 position: 6436837
offset: 1746859069 position: 7485367
offset: 2090359736 position: 8533822
...
{code}

and the dump of the same log file from the leader of this partition
{code}
michael.schiff@stats-kafka12:~$ sudo /opt/kafka/bin/kafka-run-class.sh kafka.tools.DumpLogSegments --files /kafka/attainment_event-0/00000000000000000000.index
[sudo] password for michael.schiff:
Dumping /kafka/attainment_event-0/00000000000000000000.index
offset: 353690666 position: 262054
offset: 633140428 position: 523785
offset: 756537951 position: 785815
{code}



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