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https://issues.apache.org/jira/browse/HBASE-11774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14102282#comment-14102282
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Anoop Sam John commented on HBASE-11774:
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FYI.. I will commit HBASE-11553 in some time. I am incorporating the changes
from this patch to visibility classes.
bq.CellUtil.tagsIterator() used without the tags length check in
VisibilityUtils also. Might be good to fix there also?
This part also I am fixing.
You can just avoid the visibility classes from the patch.
> Avoid allocating unnecessary tag iterators
> ------------------------------------------
>
> Key: HBASE-11774
> URL: https://issues.apache.org/jira/browse/HBASE-11774
> Project: HBase
> Issue Type: Improvement
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Minor
> Fix For: 0.99.0, 2.0.0, 0.98.6
>
> Attachments: HBASE-11774.patch
>
>
> We can avoid an unnecessary object allocation, sometimes in hot code paths,
> by not creating a tag iterator if the cell's tag area is of length zero,
> signifying no tags present.
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