[
https://issues.apache.org/jira/browse/KAFKA-1581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14091720#comment-14091720
]
Manikumar Reddy commented on KAFKA-1581:
----------------------------------------
I submitted a patch for KAFKA-1374, which handles compressed messages in log
compaction. We can skip messages without keys during log cleaning. I can
include this in KAFKA-1374 patch.
> Log cleaner should have an option to ignore messages without keys
> -----------------------------------------------------------------
>
> Key: KAFKA-1581
> URL: https://issues.apache.org/jira/browse/KAFKA-1581
> Project: Kafka
> Issue Type: Bug
> Reporter: Joel Koshy
>
> Right now, there is a strict requirement that compacted topics contain only
> messages with keys. This makes sense, but the issue with a hard requirement
> is that if it fails the cleaner quits. We should probably allow ignoring
> these messages (with a warning). Alternatively, we can catch this scenario
> (instead of the hard requirement) and just skip compaction for that partition.
> This came up because I saw an invalid message (compressed and without a key)
> in the offsets topic which broke both log compaction and the offset load
> process. I filed KAFKA-1580 to prevent that from happening in the first place
> but KAFKA-1580 is only for internal topics. In the general case (compacted
> non-internal topics) we would not want the cleaners to exit permanently due
> to an invalid (key-less) message in one of the partitions since that would
> prevent compaction for other partitions as well.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
