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https://issues.apache.org/jira/browse/FLINK-6606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16016577#comment-16016577
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ASF GitHub Bot commented on FLINK-6606:
---------------------------------------
Github user EronWright commented on the issue:
https://github.com/apache/flink/pull/3933
Originally I pursued the path suggested by @tillrohrmann of setting the
TCCL at the sites where the hook is invoked, but found that the classloader
wasn't readily available. I found it more expedient to create a wrapper that
eagerly captured the classloader.
> Create checkpoint hook with user classloader
> --------------------------------------------
>
> Key: FLINK-6606
> URL: https://issues.apache.org/jira/browse/FLINK-6606
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Reporter: Eron Wright
> Assignee: Eron Wright
> Priority: Blocker
> Fix For: 1.3.0
>
>
> Flink should set the thread's classloader when calling the checkpoint hook
> factory's `create` method. Without that, the hook is likely to fail during
> initialization (e.g. using ServiceLoader).
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