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From "xymaqingxiang (Jira)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-15447) Change "java.io.tmpdir" of JM/TM on Yarn to "{{PWD}}/tmp"
Date Tue, 07 Jan 2020 10:10:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-15447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17009578#comment-17009578

xymaqingxiang commented on FLINK-15447:


We also set "java.io.tmpdir" to "{{{{PWD}}}}/tmp" directory internally.

// when encapsulating the StartCommandValues for JM/TM
Path tmpDir = new Path(ApplicationConstants.Environment.PWD.$$(), YarnConfiguration.DEFAULT_CONTAINER_TEMP_DIR);
javaOpts = "-Djava.io.tmpdir=" + tmpDir.getPath();
startCommandValues.put("jvmopts", javaOpts);

> Change "java.io.tmpdir"  of JM/TM on Yarn to "{{PWD}}/tmp" 
> -----------------------------------------------------------
>                 Key: FLINK-15447
>                 URL: https://issues.apache.org/jira/browse/FLINK-15447
>             Project: Flink
>          Issue Type: Improvement
>          Components: Deployment / YARN
>    Affects Versions: 1.9.1
>            Reporter: Victor Wong
>            Priority: Major
> Currently, when running Flink on Yarn, the "java.io.tmpdir" property is set to the default
value, which is "/tmp". 
> Sometimes we ran into exceptions caused by a full "/tmp" directory, which would not be
cleaned automatically after applications finished.
> I think we can set "java.io.tmpdir" to "{{{{PWD}}}}/tmp" directory, or something similar.
"{{{{PWD}}}}" will be replaced with the true working directory of JM/TM by Yarn, which will
be cleaned automatically.

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