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https://issues.apache.org/jira/browse/HDFS-12947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shashikant Banerjee updated HDFS-12947:
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Attachment: HDFS-12947.003.patch
Thanks [~szetszwo], for the review comments. Patch v3 limits the no of
snapshots system-wide
default value of which is 65536.
Please have a look.
> 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
> Attachments: HDFS-12947.001.patch, HDFS-12947.002.patch,
> HDFS-12947.003.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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