[
https://issues.apache.org/jira/browse/HBASE-8732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13708882#comment-13708882
]
Jean-Daniel Cryans commented on HBASE-8732:
-------------------------------------------
So the problem is that {{HStore}} has a {{HFileDataBlockEncoderImpl}} which has
a {{HFileBlockDefaultEncodingContext}} which is not thread safe.
{{onDiskBytesWithHeader}}, {{uncompressedBytesWithHeader}}, and {{blockType}}
are currently shared between threads without any protection so this mangles the
block headers.
HBASE-5521 added this code for HBASE-5313, but then it didn't go anywhere. I'm
starting a discussion in the latter to see what's going on, I'm thinking of
reverting 5521 right now.
> Changing Encoding on Column Families errors out
> -----------------------------------------------
>
> Key: HBASE-8732
> URL: https://issues.apache.org/jira/browse/HBASE-8732
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.98.0, 0.95.1
> Reporter: Elliott Clark
> Assignee: Jean-Daniel Cryans
> Priority: Critical
> Fix For: 0.95.2
>
>
> Getting an error when opening a scanner on a file that has no encoding.
--
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
