tillrohrmann commented on a change in pull request #9663:
[WIP][FLINK-12433][runtime] Implement DefaultScheduler stub
URL: https://github.com/apache/flink/pull/9663#discussion_r323256952
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/DefaultScheduler.java
##########
@@ -75,10 +137,281 @@ public DefaultScheduler(
slotRequestTimeout,
shuffleMaster,
partitionTracker);
+
+ this.restartBackoffTimeStrategy = restartBackoffTimeStrategy;
+ this.slotRequestTimeout = slotRequestTimeout;
+ this.slotProvider = slotProvider;
+ this.delayExecutor = delayExecutor;
+ this.userCodeLoader = userCodeLoader;
+ this.schedulingStrategyFactory =
checkNotNull(schedulingStrategyFactory);
+ this.failoverStrategyFactory =
checkNotNull(failoverStrategyFactory);
+ this.executionVertexOperations =
checkNotNull(executionVertexOperations);
+ this.executionVertexVersioner = executionVertexVersioner;
+ this.conditionalFutureHandlerFactory = new
ConditionalFutureHandlerFactory(executionVertexVersioner);
+ }
+
+ //
------------------------------------------------------------------------
+ // SchedulerNG
+ //
------------------------------------------------------------------------
+
+ @Override
+ public void startSchedulingInternal() {
+ initializeScheduling();
+ schedulingStrategy.startScheduling();
+ }
+
+ private void initializeScheduling() {
+ executionFailureHandler = new
ExecutionFailureHandler(failoverStrategyFactory.create(getFailoverTopology()),
restartBackoffTimeStrategy);
+ schedulingStrategy =
schedulingStrategyFactory.createInstance(this, getSchedulingTopology(),
getJobGraph());
+ executionSlotAllocator = new
DefaultExecutionSlotAllocator(slotProvider, getInputsLocationsRetriever(),
slotRequestTimeout);
+ setTaskFailureListener(new
UpdateTaskExecutionStateInDefaultSchedulerListener(this,
getJobGraph().getJobID()));
Review comment:
Why are we setting these fields only after `startSchedulingInternal` is
called? Would it be possible to initialize them in the constructor?
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