[
https://issues.apache.org/jira/browse/HBASE-14832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15014434#comment-15014434
]
stack commented on HBASE-14832:
-------------------------------
bq. Currently in compaction case there will be a copy happening while writing
back to the new file.
Can do in a follow up.
bq. In the offheap cell only the value part is referring to the offheap
hfileblock coming out of the bucket cache. All other components are onheap
byte[] only since the need to be decoded.
Ok. Seems like related work but can do in follow-on.
Yeah, would be cool if we could purge but you probably can't. It is a
PrefixTree intrinsic. The best we could do is move it back into the prefixtree
module I'd say.
> Ensure write paths work with ByteBufferedCells in case of compaction
> --------------------------------------------------------------------
>
> Key: HBASE-14832
> URL: https://issues.apache.org/jira/browse/HBASE-14832
> Project: HBase
> Issue Type: Sub-task
> Components: regionserver, Scanners
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-14832.patch
>
>
> Currently any cell coming out of offheap Bucketcache while compaction does a
> copy using the getXXXArray() API since write path does not work with BBCells.
> This JIRA is aimed at changing the write path to support BBCells so that this
> copy is avoided.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
