zhuzhurk commented on a change in pull request #9860: [FLINK-14331][runtime]
Reset vertices right after they transition to terminated states
URL: https://github.com/apache/flink/pull/9860#discussion_r334013783
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/DefaultScheduler.java
##########
@@ -211,7 +215,8 @@ private Runnable restartTasks(final
Set<ExecutionVertexVersion> executionVertexV
}
private CompletableFuture<?> cancelExecutionVertex(final
ExecutionVertexID executionVertexId) {
- return
executionVertexOperations.cancel(getExecutionVertex(executionVertexId));
+ return
executionVertexOperations.cancel(getExecutionVertex(executionVertexId))
+ .whenComplete((Object ignored, Throwable t) ->
executionSlotAllocator.cancel(executionVertexId));
Review comment:
> If the slot is already provisioned, then
DefaultExecutionSlotAllocator#cancel() should be a no-op. If the slot future is
not completed, then there cannot be any slot assigned to the execution.
I think you are right. Will simplify it.
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