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https://issues.apache.org/jira/browse/FLINK-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15273559#comment-15273559
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Chiwan Park commented on FLINK-3878:
------------------------------------
Hi Ken, thanks for reporting this issue and submitting a patch for this.
Because Flink community uses Github pull requests to receive patches, could you
open a pull request to Flink's github repository
(https://github.com/apache/flink)?
If you don't want to do it, I'll merge your patch manually with your credit.
> File cache doesn't support multiple duplicate temp directories
> --------------------------------------------------------------
>
> Key: FLINK-3878
> URL: https://issues.apache.org/jira/browse/FLINK-3878
> Project: Flink
> Issue Type: Bug
> Components: Distributed Runtime, Local Runtime
> Affects Versions: 1.1.0, 1.0.2
> Reporter: Ken Krugler
> Attachments: FLINK-3878.patch
>
>
> Based on
> https://ci.apache.org/projects/flink/flink-docs-master/setup/config.html, you
> should be able to specify the same temp directory name multiple times. This
> works for some of the Flink infrastructure (e.g. the TaskManager's temp file
> directory), but not for FileCache.
> The problem is that the FileCache() constructor tries to use the same random
> directory name for each of the specified temp dir locations, so after the
> first directory is created, the second create fails.
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