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https://issues.apache.org/jira/browse/HDFS-15473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17163723#comment-17163723
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Wei-Chiu Chuang commented on HDFS-15473:
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Ideally, you want to use an iterator to return partial results instead of
returning all in an array.
The most number of snapshots in a production cluster that I have seen is ~ 10k
range. Returning a few thousand snapshot entries may cause a short burst of
requests in queue.
Also, can you add a metrics for the number of total snapshots?
> Add listSnapshots command to list all snapshots
> -----------------------------------------------
>
> Key: HDFS-15473
> URL: https://issues.apache.org/jira/browse/HDFS-15473
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Hemanth Boyina
> Assignee: Hemanth Boyina
> Priority: Major
> Attachments: HDFS-15473.001.patch
>
>
> In a cluster where snapshots are highly used , it will benefit to have a
> command to list all the snapshots under root
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