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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18049) It is not necessary to re-open the region when MOB files cannot be found
Date Tue, 16 May 2017 11:06:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16012153#comment-16012153
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Anoop Sam John commented on HBASE-18049:
----------------------------------------

Just add a comment saying why throw DNRIOE (The desc in this issue way).  Can do that on commit.
+1

> It is not necessary to re-open the region when MOB files cannot be found
> ------------------------------------------------------------------------
>
>                 Key: HBASE-18049
>                 URL: https://issues.apache.org/jira/browse/HBASE-18049
>             Project: HBase
>          Issue Type: Bug
>          Components: Scanners
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>             Fix For: 2.0.0
>
>         Attachments: HBASE-18049.patch, HBASE-18049-V2.patch
>
>
> In HBASE-17712, we try to re-open the region when store files cannot be found. This is
useful for store files in a region, but is not necessary when the MOB files cannot be found,
because the store files in a region only contain the references to the MOB files and a re-open
of a region doesn't help the lost MOB files.
> In this JIRA, we will directly throw DNRIOE only when the MOB files are not found in
{{MobStoreScanner}} and {{ReversedMobStoreScanner}}. Other logics keep the same.



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