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https://issues.apache.org/jira/browse/HADOOP-17531?focusedWorklogId=566422&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-566422
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ASF GitHub Bot logged work on HADOOP-17531:
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Author: ASF GitHub Bot
Created on: 15/Mar/21 18:01
Start Date: 15/Mar/21 18:01
Worklog Time Spent: 10m
Work Description: ayushtkn commented on pull request #2732:
URL: https://github.com/apache/hadoop/pull/2732#issuecomment-799628501
> Can you restore the S3A callable stuff, alongside the copy you've made in
fs.impl? That will stop the PRs conflicting.
Do you mean to say revert all the aws changes? and move these classes back
to the aws module? To a state before this commit:
https://github.com/apache/hadoop/pull/2732/commits/1d27dfcb6369cff24cd9c0d16abe3791923463eb
That shouldn't be a problem, just to know will it be OK if I keep a parent
class in the Hadoop-Common and child class named `CallableSupplier` in aws
module can that also work for you?
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Issue Time Tracking
-------------------
Worklog Id: (was: 566422)
Time Spent: 4h 40m (was: 4.5h)
> DistCp: Reduce memory usage on copying huge directories
> -------------------------------------------------------
>
> Key: HADOOP-17531
> URL: https://issues.apache.org/jira/browse/HADOOP-17531
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Critical
> Labels: pull-request-available
> Attachments: MoveToStackIterator.patch, gc-NewD-512M-3.8ML.log
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> Presently distCp, uses the producer-consumer kind of setup while building the
> listing, the input queue and output queue are both unbounded, thus the
> listStatus grows quite huge.
> Rel Code Part :
> https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/SimpleCopyListing.java#L635
> This goes on bredth-first traversal kind of stuff(uses queue instead of
> earlier stack), so if you have files at lower depth, it will like open up the
> entire tree and the start processing....
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