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https://issues.apache.org/jira/browse/HBASE-13807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14565911#comment-14565911
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Hudson commented on HBASE-13807:
--------------------------------
FAILURE: Integrated in HBase-0.98 #1012 (See
[https://builds.apache.org/job/HBase-0.98/1012/])
HBASE-13807 [0.98] NoTagsKeyValue optimization is not proper. (anoopsamjohn:
rev 919c4a4522e3a6536d9f32b4b0149d9e57794c4c)
*
hbase-common/src/main/java/org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV2.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV3.java
> [0.98] NoTagsKeyValue optimization is not proper
> ------------------------------------------------
>
> Key: HBASE-13807
> URL: https://issues.apache.org/jira/browse/HBASE-13807
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.98.13
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Fix For: 0.98.13
>
> Attachments: HBASE-13807-0.98.patch
>
>
> When the file format is V2, it has no support for tags and so cells will be
> with 0 tags length. For such cells we make NoTagsKeyValue which avoid
> getTagsLength parsing overhead in KeyValue. Still HFileReaderV2 creates
> KeyValue.
> This is a 0.98 issue only.
> Also in case of DBE, we can consider the tags length and return
> KeyValue/NoTagsKeyValue
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