Steve Loughran created HADOOP-15208:
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Summary: DistCp to offer option to save src/dest filesets as
alternative to delete()
Key: HADOOP-15208
URL: https://issues.apache.org/jira/browse/HADOOP-15208
Project: Hadoop Common
Issue Type: New Feature
Components: tools/distcp
Affects Versions: 2.9.0
Reporter: Steve Loughran
Assignee: Steve Loughran
There are opportunities to improve distcp delete performance and scalability
with object stores, but you need to test with production datasets to determine
if the optimizations work, don't run out of memory, etc.
By adding the option to save the sequence files of source, dest listings,
people (myself included) can experiment with different strategies before trying
to commit one which doesn't scale
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