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ASF GitHub Bot commented on FLINK-7442: --------------------------------------- GitHub user aljoscha opened a pull request: https://github.com/apache/flink/pull/4564 [FLINK-7442] Add option for using child-first classloader for loading user code This is an alternative to #4554 that does not make the client class loader configurable. ## What is the purpose of the change This PR introduces a new core option (`classloader.resolve-order: child-first`) that allows using a child-first class loader for user code. The default is still to use a parent-first class loader. This also does a minor refactoring in the way the blob manager retrieves the cleanup interval. It's now also read from the `Configuration`, since we already have the `Configuration` for the class loader settings. ## Brief change log - Introduce new option - Pass `Configuration` thought to all places where we previously created a user class loader - Instantiate correct class loader based on config ## Verifying this change This PR introduces new end-to-end tests that verify the new feature in a complete Flink workflow, including starting the program using `bin/flink run`. ## Does this pull request potentially affect one of the following parts: This affects class loader, which is quite important to get right. ## Documentation - the new flag is documented in the config documentation You can merge this pull request into a Git repository by running: $ git pull https://github.com/aljoscha/flink jira-7441-child-first-classloader-alternative Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/4564.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 #4564 ---- commit 33bd4cf5160ec64cbaace876b305922b804cc3a1 Author: Aljoscha Krettek <aljoscha.kret...@gmail.com> Date: 2017-08-14T12:53:14Z [FLINK-7442] Add option for using a child-first classloader for loading user code ---- > Add option for using a child-first classloader for loading user code > -------------------------------------------------------------------- > > Key: FLINK-7442 > URL: https://issues.apache.org/jira/browse/FLINK-7442 > Project: Flink > Issue Type: Improvement > Components: Local Runtime > Reporter: Aljoscha Krettek > Assignee: Aljoscha Krettek > -- This message was sent by Atlassian JIRA (v6.4.14#64029)