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ASF GitHub Bot commented on FLINK-8360: --------------------------------------- Github user tillrohrmann commented on a diff in the pull request: https://github.com/apache/flink/pull/5239#discussion_r165315816 --- Diff: flink-streaming-java/src/test/java/org/apache/flink/streaming/api/operators/OperatorSnapshotFuturesTest.java --- @@ -46,20 +47,28 @@ public void testCancelAndCleanup() throws Exception { operatorSnapshotResult.cancel(); KeyedStateHandle keyedManagedStateHandle = mock(KeyedStateHandle.class); - RunnableFuture<KeyedStateHandle> keyedStateManagedFuture = mock(RunnableFuture.class); - when(keyedStateManagedFuture.get()).thenReturn(keyedManagedStateHandle); + RunnableFuture<SnapshotResult<KeyedStateHandle>> keyedStateManagedFuture = mock(RunnableFuture.class); --- End diff -- Why not using a `DoneFuture` instead of mocking? > Implement task-local state recovery > ----------------------------------- > > Key: FLINK-8360 > URL: https://issues.apache.org/jira/browse/FLINK-8360 > Project: Flink > Issue Type: New Feature > Components: State Backends, Checkpointing > Reporter: Stefan Richter > Assignee: Stefan Richter > Priority: Major > Fix For: 1.5.0 > > > This issue tracks the development of recovery from task-local state. The main > idea is to have a secondary, local copy of the checkpointed state, while > there is still a primary copy in DFS that we report to the checkpoint > coordinator. > Recovery can attempt to restore from the secondary local copy, if available, > to save network bandwidth. This requires that the assignment from tasks to > slots is as sticky is possible. > For starters, we will implement this feature for all managed keyed states and > can easily enhance it to all other state types (e.g. operator state) later. -- This message was sent by Atlassian JIRA (v7.6.3#76005)