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https://issues.apache.org/jira/browse/HBASE-8496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13798868#comment-13798868
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Anoop Sam John commented on HBASE-8496:
---------------------------------------
Initially we didnt have ways to make optional tags. Now also if V3 is enabled
and writes are with out any tags, during flush we will write extra 2 bytes of
tag length (0) with every KV. But later during the compaction this also will
get removed. Being available this it might be better to make the default
version to 3 so that no need to change explicitely to use tags. I am +1 for
that now.
> Implement tags and the internals of how a tag should look like
> --------------------------------------------------------------
>
> Key: HBASE-8496
> URL: https://issues.apache.org/jira/browse/HBASE-8496
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 0.98.0, 0.95.2
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Critical
> Fix For: 0.98.0
>
> Attachments: Comparison.pdf, HBASE-8496_2.patch, HBASE-8496_3.patch,
> HBASE-8496_3.patch, HBASE-8496_3.patch, HBASE-8496_4.patch,
> HBASE-8496_5.patch, HBASE-8496_6.patch, HBASE-8496.patch,
> Performance_report.xlsx, Tag design.pdf, Tag design_updated.pdf,
> Tag_In_KV_Buffer_For_reference.patch
>
>
> The intent of this JIRA comes from HBASE-7897.
> This would help us to decide on the structure and format of how the tags
> should look like.
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