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https://issues.apache.org/jira/browse/HBASE-14995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15061678#comment-15061678
]
Hudson commented on HBASE-14995:
--------------------------------
SUCCESS: Integrated in HBase-1.2-IT #347 (See
[https://builds.apache.org/job/HBase-1.2-IT/347/])
HBASE-14995 Revert according to Ram's feedback (tedyu: rev
d02a4d6dc1c14d9697e12427673d5ad0071c72cc)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java
> Optimize setting tagsPresent in DefaultMemStore.java
> ----------------------------------------------------
>
> Key: HBASE-14995
> URL: https://issues.apache.org/jira/browse/HBASE-14995
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Affects Versions: 2.0.0, 1.2.0
> Reporter: huaxiang sun
> Assignee: huaxiang sun
> Priority: Minor
> Attachments: HBASE-14995-v001.patch, HBASE-14995-v002.patch
>
>
> The current implementation calls e.getTagsLength() for each cell. Once
> tagsPresent is set, e.getTagsLength() can be avoided.
> {code}
> private boolean addToCellSet(Cell e) {
> boolean b = this.cellSet.add(e);
> // In no tags case this NoTagsKeyValue.getTagsLength() is a cheap call.
> // When we use ACL CP or Visibility CP which deals with Tags during
> // mutation, the TagRewriteCell.getTagsLength() is a cheaper call. We do
> not
> // parse the byte[] to identify the tags length.
> if(e.getTagsLength() > 0) {
> tagsPresent = true;
> }
> setOldestEditTimeToNow();
> return b;
> }
> {code}
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