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https://issues.apache.org/jira/browse/FLINK-4913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15660184#comment-15660184
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ASF GitHub Bot commented on FLINK-4913:
---------------------------------------
GitHub user uce opened a pull request:
https://github.com/apache/flink/pull/2795
Revert "[FLINK-4913][yarn] include user jars in system class loader"
In general, a very good fix imo, but it is part of RC1 for 1.1.4. It might
be better to exclude it for the bug fix release since it changes class loading
behaviour between minor version. This could possibly lead to hard to debug
`Cannot cast class A to A exceptions` if a user relies on loading classes via
the user code loader which are available via the system class loader with this
commit.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/uce/flink 4913-revert_yarn_sysclassloader
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2795.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2795
----
commit 324ddaed54b138e11fac98b906b78a016f83a24b
Author: Ufuk Celebi <u...@apache.org>
Date: 2016-11-12T19:49:17Z
Revert "[FLINK-4913][yarn] include user jars in system class loader"
This reverts commit ea41b9c56fdc0af3c97d6dd48d04218db6176ec8.
----
> Per-job Yarn clusters: include user jar in system class loader
> ---------------------------------------------------------------
>
> Key: FLINK-4913
> URL: https://issues.apache.org/jira/browse/FLINK-4913
> Project: Flink
> Issue Type: Improvement
> Components: Client, YARN Client
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Fix For: 1.2.0, 1.1.4
>
>
> Including the jar directly in the system classloader avoids loading it for
> every instantiation of the ExecutionGraph and every Task execution. Note,
> this is only possible for per-job clusters (i.e. Yarn/Mesos).
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