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https://issues.apache.org/jira/browse/FLINK-5817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871082#comment-15871082
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shijinkui commented on FLINK-5817:
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[~StephanEwen] [~wenlong.lwl], there no overlapping between FLINK-5546 and
FLINK-5817. In FLINK-5546, I'm focus on changing the default java.io.tmp system
property.
I think this issue can find out all the temporary directory creating by new
File, and replace all with TemporaryFolder following Stephan's suggestion.
You can find out all the *Test.* files and search the keyword "new File(", then
you'll find there so much bad smell need to be re-corrected.
> Fix test concurrent execution failure by test dir conflicts.
> ------------------------------------------------------------
>
> Key: FLINK-5817
> URL: https://issues.apache.org/jira/browse/FLINK-5817
> Project: Flink
> Issue Type: Bug
> Reporter: Wenlong Lyu
> Assignee: Wenlong Lyu
>
> Currently when different users build flink on the same machine, failure may
> happen because some test utilities create test file using the fixed name,
> which will cause file access failing when different user processing the same
> file at the same time.
> We have found errors from AbstractTestBase, IOManagerTest, FileCacheTest.
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