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https://issues.apache.org/jira/browse/FLINK-14433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16962015#comment-16962015
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Congxian Qiu(klion26) commented on FLINK-14433:
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[~aljoscha] As you're the last modified the {{JaasModule.java}}, what do you
think about this, if this is valid, could you please assign this ticket to me?
> Move generated Jaas conf file from /tmp directory to Job specific directory
> ---------------------------------------------------------------------------
>
> Key: FLINK-14433
> URL: https://issues.apache.org/jira/browse/FLINK-14433
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream
> Reporter: Congxian Qiu(klion26)
> Priority: Major
> Fix For: 1.10.0
>
>
> Currently, we’ll generate a jaas file under tmp directory[1], files generated
> the jobs which run on the same machine will all run into the same directory
> /tmp, this may be problematic because of the reasons:
> * Run out of inode for the disk which directory /tmp on
> * The performance of /tmp directory will affect the read/write performance
> of jaas file.
>
> So we propose to change place the jaas file under the
> {{CoreOptions.TMP_DIRS}} directory other than the /tmp directory.
>
> [1]
> https://github.com/apache/flink/blob/dbe1bfa31db4a561b6faa9c1235f02dc130825ca/flink-runtime/src/main/java/org/apache/flink/runtime/security/modules/JaasModule.java#L143
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