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https://issues.apache.org/jira/browse/HDFS-12998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shashikant Banerjee updated HDFS-12998:
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Attachment: HDFS-12998.001.patch
> SnapshotDiff - Provide an iterator-based listing API for calculating
> snapshotDiff
> ---------------------------------------------------------------------------------
>
> Key: HDFS-12998
> URL: https://issues.apache.org/jira/browse/HDFS-12998
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Shashikant Banerjee
> Assignee: Shashikant Banerjee
> Priority: Major
> Attachments: HDFS-12998.001.patch
>
>
> Currently , SnapshotDiff computation happens over multiple rpc calls to
> namenode depending on the no of snapshotDiff entries where each rpc call
> returns at max 1000 entries by default . Each "getSnapshotDiffreportListing"
> call to namenode returns a partial snapshotDiffreportList which are all
> combined and processed at the client side to generate a final
> snapshotDiffreport. There can be cases where SnapshotDiffReport can be huge
> and in situations as such , the rpc calls to namnode should happen on demand
> at the client side.
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