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https://issues.apache.org/jira/browse/TEZ-2787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14737603#comment-14737603
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Jason Lowe commented on TEZ-2787:
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I think using the same setup as the tasks should be sufficient. Only question
to me is whether we should put it earlier in the command-line so the
user-provided AM opts could override this setting if desired.
> Tez AM should have java.io.tmpdir=./tmp to be consistent with tasks
> -------------------------------------------------------------------
>
> Key: TEZ-2787
> URL: https://issues.apache.org/jira/browse/TEZ-2787
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Jason Lowe
> Assignee: Jonathan Eagles
> Attachments: TEZ-2787.1.patch
>
>
> TezRuntimeChildJVM ensures that tasks are launched with
> -Djava.io.tmpdir=./tmp, but there's no corresponding code to ensure the Tez
> AM also has a similar tmpdir setting. The client should setup the AM launch
> context to have -Djava.io.tmpdir=./tmp to be consistent with the tasks and to
> prevent accidental leaking of files in /tmp by the Tez AM if it crashes.
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