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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HBASE-18398) Snapshot operation fails with FileNotFoundException
Date Wed, 09 Aug 2017 07:25:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119520#comment-16119520
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Anoop Sam John edited comment on HBASE-18398 at 8/9/17 7:24 AM:
----------------------------------------------------------------

Looks good and a nice one found.
bq.void preSnapshotOperation();
Store is exposed to CPs and this method make no sense for CPs. Should not be added to this
interface. Same for post


was (Author: anoop.hbase):
Looks good and a nice one to find.
bq.void preSnapshotOperation();
Store is exposed to CPs and this method make no sense for CPs. Should not be added to this
interface. Same for post

> Snapshot operation fails with FileNotFoundException
> ---------------------------------------------------
>
>                 Key: HBASE-18398
>                 URL: https://issues.apache.org/jira/browse/HBASE-18398
>             Project: HBase
>          Issue Type: Sub-task
>          Components: snapshots
>            Reporter: Ashu Pachauri
>            Assignee: Ashu Pachauri
>             Fix For: 1.3.2
>
>         Attachments: HBASE-18398.branch-1.3.001.patch, HBASE-18398.branch-1.3.002.patch,
HBASE-18398.master.001.patch, HBASE-18398.master.002.patch, HBASE-18398.master.003.patch
>
>
> Failing to take snapshot due to FileNotFoundException
>     * FlushSnapshotSubprocedure.RegionSnapshotTask takes a region level read lock
>     * Call to HRegion#addRegionToSnapshot.
>     * Call to SnapshotManifest#addRegion. This gets the current list of store files.
>     * RACE → File is marked as compacted away and HFileArchiver moves the file to archive
under store level lock.
>     * SnapshotManifest#addRegion visits the stale list of store files one by one. It
does a file.getStatus() call to get length of each file. Since the file object still points
to the original file, file.getStatus() fails with FileNotFoundException.



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