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https://issues.apache.org/jira/browse/FLINK-9707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16531233#comment-16531233
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ASF GitHub Bot commented on FLINK-9707:
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GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/6243
[FLINK-9707] Support concurrent directory creations in LocalFileSystem
## What is the purpose of the change
Support concurrent directory creations by accepting directories which have
been
created by a different thread/process in LocalFileSystem#mkdirs.
## Verifying this change
- Added `LocalFileSystemTest#testConcurrentMkdirs`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (no)
- The serializers: (no)
- The runtime per-record code paths (performance sensitive): (no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
- If yes, how is the feature documented? (not applicable)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink fixLocalFileSystem
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/6243.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #6243
----
commit 82cd571b12f15fc99293173502d21370802aea55
Author: Till Rohrmann <trohrmann@...>
Date: 2018-07-03T11:36:33Z
[FLINK-9707] Support concurrent directory creations in LocalFileSystem
Support concurrent directory creations by accepting directories which have
been
created by a different thread/process in LocalFileSystem#mkdirs.
----
> LocalFileSystem does not support concurrent directory creations
> ---------------------------------------------------------------
>
> Key: FLINK-9707
> URL: https://issues.apache.org/jira/browse/FLINK-9707
> Project: Flink
> Issue Type: Improvement
> Components: FileSystem
> Affects Versions: 1.5.0, 1.6.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.6.0, 1.5.1
>
>
> The {{LocalFileSystem}} does not support concurrent directory creations. The
> consequence is that file system operations fail.
> I think the culprit is the following line:
> https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/core/fs/local/LocalFileSystem.java#L257
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