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Posted to hdfs-issues@hadoop.apache.org by "Shashikant Banerjee (JIRA)" <ji...@apache.org> on 2018/02/06 11:23:00 UTC
[jira] [Commented] (HDFS-12947) Limit the number of Snapshots
allowed to be created for a Snapshottable Directory
[ https://issues.apache.org/jira/browse/HDFS-12947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16353736#comment-16353736 ]
Shashikant Banerjee commented on HDFS-12947:
--------------------------------------------
Thanks [~szetszwo] for the review comments. Patch v4 addresses the same.
> Limit the number of Snapshots allowed to be created for a Snapshottable Directory
> ---------------------------------------------------------------------------------
>
> Key: HDFS-12947
> URL: https://issues.apache.org/jira/browse/HDFS-12947
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Shashikant Banerjee
> Assignee: Shashikant Banerjee
> Priority: Major
> Attachments: HDFS-12947.001.patch, HDFS-12947.002.patch, HDFS-12947.003.patch, HDFS-12947.004.patch
>
>
> Currently, A snapshottable directory is able to accommodate 65,536 snapshots. In case a directory has large no of snapshots , deletion of any of the earlier snapshots take a lot of time which might lead to namenode crash (HDFS-11225).
> This jira is introduced to limit the no of the snapshots under a snapshottable directory to a reasonable value(say 10) which can be overriden.
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