GitHub user gyfora opened a pull request: https://github.com/apache/flink/pull/1126
[FLINK-2664] [streaming] Allow partitioned state removal This PR changes the way Partitioned states handle null values. Before this PR the user was not allowed to put null values in a partitioned state and an exception was thrown. This did not allow the user to remove the state for the current key (so the default value will be retreived next time). Now whenever a user updates a partitioned state with a null value, the system will remove the state for the respective key from that map containing all the <key,state> pairs allowing for the garbage collection of unwanted user state. The StatefulOperatorTest has also been modified to test for the changed behavior. You can merge this pull request into a Git repository by running: $ git pull https://github.com/gyfora/flink 2664 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/1126.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 #1126 ---- commit dd40ea508f78c0487e003de2c2cf13cb12681db9 Author: Gyula Fora <gyf...@apache.org> Date: 2015-09-14T09:13:29Z [FLINK-2664] [streaming] Allow partitioned state removal ---- --- 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. ---