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From "Ashu Pachauri (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HBASE-18398) Snapshot operation fails with FileNotFoundException
Date Tue, 08 Aug 2017 23:43:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119186#comment-16119186
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Ashu Pachauri edited comment on HBASE-18398 at 8/8/17 11:42 PM:
----------------------------------------------------------------

The region that's being written to in the test is split by the IncreasingToUpperBoundRegionSplitPolicy,
while in the middle of the snapshot operation, that causes the snapshot to fail.


was (Author: ashu210890):
The region that's being written to is split by the IncreasingToUpperBoundRegionSplitPolicy,
while in the middle of the snapshot operation, that causes the snapshot to fail.

> 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.master.001.patch,
HBASE-18398.master.002.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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