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https://issues.apache.org/jira/browse/KAFKA-1374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14316526#comment-14316526
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Jay Kreps commented on KAFKA-1374:
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Hey guys, the test kafka.tools.TestLogCleaning is a very aggressive test that
runs against a kafka cluster configured for log compaction. It produces a bunch
of messages and compacts them continuously and then does an out of band
comparison of the two. It would be good to ensure that stills works on really
large cleaner runs with deletes with this patch.
> LogCleaner (compaction) does not support compressed topics
> ----------------------------------------------------------
>
> Key: KAFKA-1374
> URL: https://issues.apache.org/jira/browse/KAFKA-1374
> Project: Kafka
> Issue Type: Bug
> Reporter: Joel Koshy
> Assignee: Manikumar Reddy
> Labels: newbie++
> Fix For: 0.8.3
>
> Attachments: KAFKA-1374.patch, KAFKA-1374_2014-08-09_16:18:55.patch,
> KAFKA-1374_2014-08-12_22:23:06.patch, KAFKA-1374_2014-09-23_21:47:12.patch,
> KAFKA-1374_2014-10-03_18:49:16.patch, KAFKA-1374_2014-10-03_19:17:17.patch,
> KAFKA-1374_2015-01-18_00:19:21.patch
>
>
> This is a known issue, but opening a ticket to track.
> If you try to compact a topic that has compressed messages you will run into
> various exceptions - typically because during iteration we advance the
> position based on the decompressed size of the message. I have a bunch of
> stack traces, but it should be straightforward to reproduce.
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