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https://issues.apache.org/jira/browse/HBASE-15218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15134503#comment-15134503
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Anoop Sam John commented on HBASE-15218:
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As Ram said, there is no overhead on WAL read we have added here
[[email protected]]. KVCodec / KVCodecWithTags will read a Cell's length
first and then Cell bytes. This continues.
[~busbey] this is ready to go. We have even a clean QA report here :-)
> On RS crash and replay of WAL, loosing all Tags in Cells
> --------------------------------------------------------
>
> Key: HBASE-15218
> URL: https://issues.apache.org/jira/browse/HBASE-15218
> Project: HBase
> Issue Type: Bug
> Components: Recovery, regionserver, security
> Affects Versions: 2.0.0, 0.98.13, 1.0.2, 1.2.0, 1.1.1
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Priority: Blocker
> Fix For: 2.0.0, 1.2.0, 1.3.0, 1.1.4, 1.0.4, 0.98.18
>
> Attachments: HBASE-15218.patch
>
>
> The KeyValueCodec's Decoder makes NoTagsKeyValue. The WalCellCodec also makes
> this Decoder and so while reading Cells after RS crash, we will loose all
> tags in Cells.
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