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From "Jacob Tolar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-3848) Tez Local mode doesn't localize distributed cache files
Date Mon, 02 Oct 2017 22:23:01 GMT
Jacob Tolar created TEZ-3848:
--------------------------------

             Summary: Tez Local mode doesn't localize distributed cache files
                 Key: TEZ-3848
                 URL: https://issues.apache.org/jira/browse/TEZ-3848
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Jacob Tolar


Tez doesn't symlink LocalResources into place in LocalContainerLauncher.

In YARN mode, Yarn takes care of this when it launches the container. But in local mode, if
you're depending on a file existing in the distributed cache, it's never symlinked into place
(so you're out of luck).

We test our pig scripts in local mode and have some tools to set up the distributed cache
the same way it would work in production. This works fine in Mapreduce mode but are unable
to use Pig + Tez local mode for testing due to this problem.

I have a fix working and will submit a PR once I rebase it.

[~jeagles] [~wlauer@yahoo-inc.com]



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