GitHub user tzulitai opened a pull request: https://github.com/apache/flink/pull/3987
[FLINK-6714] [runtime] Use user classloader for operator state copying on snapshots Now that the operator state backend creates a deep copy of the state during the synchronous part of async checkpoints, it needs to set the user classloader as the thread context classloader, otherwise serializers that uses serialization for copying will use the wrong classloader when deserializing the copy. A test is added to {{OperatorStateBackendTest}} to verify that the user classloader is properly used on copy. You can merge this pull request into a Git repository by running: $ git pull https://github.com/tzulitai/flink FLINK-6714 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/3987.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 #3987 ---- commit 516fd085d640d56ea2ef7be7f0b11f6ad43e92f5 Author: Tzu-Li (Gordon) Tai <tzuli...@apache.org> Date: 2017-05-25T08:54:08Z [FLINK-6714] [runtime] Use user classloader for operator state copying on snapshots ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---