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https://issues.apache.org/jira/browse/HADOOP-15193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16641997#comment-16641997
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Steve Loughran commented on HADOOP-15193:
-----------------------------------------
DDB batch delete just takes the list of operations and runs through them in
sequence, retrying if needed. There is no speedup compared to making individual
requests
We do need a call in the metastore API though, as it can be a bit cleverer
about the operation.
In particular: if I delete a directory, do I need to explicitly add deleted
markers to all the children, or would a delete marker on the dir be enough? If
so, you could be very efficient & not create deleted file markers, just those
for the directories
> add bulk delete call to metastore API & DDB impl
> ------------------------------------------------
>
> Key: HADOOP-15193
> URL: https://issues.apache.org/jira/browse/HADOOP-15193
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
> Priority: Major
>
> recursive dir delete (and any future bulk delete API like HADOOP-15191)
> benefits from using the DDB bulk table delete call, which takes a list of
> deletes and executes. Hopefully this will offer better perf.
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