[
https://issues.apache.org/jira/browse/HBASE-9307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13752030#comment-13752030
]
Hudson commented on HBASE-9307:
-------------------------------
FAILURE: Integrated in HBase-TRUNK #4440 (See
[https://builds.apache.org/job/HBase-TRUNK/4440/])
HBASE-9307 HalfStoreFileReader needs to handle the faked key else compactions
go into infinite loops (jdcryans: rev 1517987)
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
> HalfStoreFileReader needs to handle the faked key else compactions go into
> infinite loops
> -----------------------------------------------------------------------------------------
>
> Key: HBASE-9307
> URL: https://issues.apache.org/jira/browse/HBASE-9307
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.95.2
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.98.0, 0.96.0
>
> Attachments: HBASE-9307.patch
>
>
> I found this while trying out 0.95.2
> I couldn't shut my cluster down because one region was still compacting, but
> it already had been doing that for an hour and it only had 80MBs of data.
> Debugging I saw that it was a post-split compaction, specifically for the top
> part of the HFiles, and that it was just spinning on the first entry in the
> file.
> Eventually I saw that the anonymous HFileScanner inside
> HalfStoreFileReader.getScanner (that's so dirty) wasn't handling
> HConstants.INDEX_KEY_MAGIC in seekTo() when calling this:
> bq. this.delegate.seekTo(splitkey)
> Instead it would treat this as if the split key wasn't in the file, but still
> seek back to the beginning of the file *then read on from there*.
> During the compaction it would see a KV that's not even part of the region,
> and it just tries to find the correct block over and over again.
> This came from HBASE-7845.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
