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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12316) Verify HDFS snapshot deletion doesn't crash the ongoing file writes
Date Thu, 17 Aug 2017 20:35:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16131255#comment-16131255
] 

Yongjun Zhang commented on HDFS-12316:
--------------------------------------

Thanks [~manojg], the patch looks good to me, except can we add some comments at the snapshot
deletion call places to describe the intention, what problem we observed etc. I'm +1 other
than that. 




> Verify HDFS snapshot deletion doesn't crash the ongoing file writes
> -------------------------------------------------------------------
>
>                 Key: HDFS-12316
>                 URL: https://issues.apache.org/jira/browse/HDFS-12316
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.0.0-beta1
>            Reporter: Manoj Govindassamy
>            Assignee: Manoj Govindassamy
>         Attachments: HDFS-12316.01.patch
>
>
> Recently we encountered a case where deletion of HDFS snapshots crashed the client that
is currently writing to a file under the same snap root. This open file was previously captured
in the snapshot using the immutable open file in snapshot feature "dfs.namenode.snapshot.capture.openfiles".



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