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https://issues.apache.org/jira/browse/HBASE-16691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15516020#comment-15516020
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ramkrishna.s.vasudevan commented on HBASE-16691:
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We also have KeyOnlyKeyValue and ByteBufferedKeyOnlyKeyValue. It has similar
use but it could be created out of a byte[] or BB and not from a cell. This is
just local to this filter. So should be fine I think. +1.
> optimize KeyOnlyFilter
> ----------------------
>
> Key: HBASE-16691
> URL: https://issues.apache.org/jira/browse/HBASE-16691
> Project: HBase
> Issue Type: Improvement
> Reporter: binlijin
> Assignee: binlijin
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-16691-master.patch
>
>
> In KeyOnlyFilter#transformCell will return a KeyOnlyCell that have no value
> or has valueLength as value, current will copy all row keys into a new byte[]
> and new a KeyValue, we can eliminate the copy and have a wrap KeyOnlyCell
> that ignore the cell's value.
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