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https://issues.apache.org/jira/browse/FLINK-4628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15495956#comment-15495956
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ASF GitHub Bot commented on FLINK-4628:
---------------------------------------
GitHub user mxm opened a pull request:
https://github.com/apache/flink/pull/2505
[FLINK-4628] provide user class loader during input split assignment
In analogy to the configure() method, this also sets a context class loader
during input split assignment.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mxm/flink FLINK-4628
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/2505.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 #2505
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commit 62d4075f89f96c1ddddd85ca951c7705fd15e3e4
Author: Maximilian Michels <[email protected]>
Date: 2016-09-16T10:21:54Z
[FLINK-4628] provide user class loader during input split assignment
In analogy to the configure() method, this also sets a context class
loader during input split assignment.
----
> User class loader unavailable during input split assignment
> -----------------------------------------------------------
>
> Key: FLINK-4628
> URL: https://issues.apache.org/jira/browse/FLINK-4628
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Affects Versions: 1.2.0, 1.1.2
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Priority: Minor
>
> {{InputFormat}}\s runs through two configuration phases in the {{JobManager}}.
> 1. initializeOnMaster which runs the configure() method on the InputFormat
> 2. createInputSplits when the ExecutionJobVertex is created
> In 1 we set the user class loader as the context class loader of the
> executing thread.
> In 2 we only have the system class loader available. If any classes need to
> be loaded then, we have a problem. Some InputFormats rely on code which
> lazily load classes at different points in time.
> In particular, this is a problem with the HBase TableInputFormat in the
> latest master.
> We should make the user class loader available when creating input splits.
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