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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18786) FileNotFoundException should not be silently handled for primary region replicas
Date Fri, 22 Sep 2017 23:59:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177355#comment-16177355
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Hudson commented on HBASE-18786:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #3761 (See [https://builds.apache.org/job/HBase-Trunk_matrix/3761/])
HBASE-18786 FileNotFoundException should not be silently handled for (apurtell: rev b27f9b582a858fba66036413936debad27737c3a)
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* (delete) hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionUnassigner.java


> FileNotFoundException should not be silently handled for primary region replicas
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-18786
>                 URL: https://issues.apache.org/jira/browse/HBASE-18786
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver, Scanners
>            Reporter: Ashu Pachauri
>            Assignee: Andrew Purtell
>             Fix For: 2.0.0, 3.0.0, 1.4.0, 1.3.2, 1.5.0
>
>         Attachments: HBASE-18786-branch-1.patch, HBASE-18786-branch-1.patch, HBASE-18786.patch,
HBASE-18786.patch
>
>
> This is a follow up for HBASE-18186.
> FileNotFoundException while scanning from a primary region replica can be indicative
of a more severe problem. Handling them silently can cause many underlying issues go undetected.
We should either
> 1. Hard fail the regionserver if there is a FNFE on a primary region replica, OR
> 2. Report these exceptions as some region / server level metric so that these can be
proactively investigated.



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