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https://issues.apache.org/jira/browse/HBASE-14188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14692883#comment-14692883
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Anoop Sam John commented on HBASE-14188:
----------------------------------------
FilterAllFilter
{code}
@Override
46 public boolean filterRowKey(Cell cell) throws IOException {
47 return true;
48 }
{code}
This has to return false as in old case. We override this method as the old
deprecated one might cause a row array copy in case of Offheap backed cells.
Mind commit an addendum?
> Read path optimizations after HBASE-11425 profiling
> ---------------------------------------------------
>
> Key: HBASE-14188
> URL: https://issues.apache.org/jira/browse/HBASE-14188
> Project: HBase
> Issue Type: Sub-task
> Components: Scanners
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 2.0.0
>
> Attachments: HBASE-14188.patch, HBASE-14188_1.patch,
> HBASE-14188_2.patch, setSeqId.png
>
>
> This subtask deals with some improvments that can be done in the read path
> (scans) after the changes for HBASE-11425 went in.
> -> Avoid CellUtil.setSequenceId in hot path.
> -> Use BBUtils in the MultibyteBuff.
> -> Use ByteBuff.skip() API in HFileReader rather than
> MultiByteBuff.position().
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