tillrohrmann commented on a change in pull request #9106: [FLINK-13184][yarn]
Support launching task executors with multi-thread on YARN.
URL: https://github.com/apache/flink/pull/9106#discussion_r313566665
##########
File path:
flink-yarn/src/main/java/org/apache/flink/yarn/YarnResourceManager.java
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@@ -185,6 +196,12 @@ public YarnResourceManager(
this.resource =
Resource.newInstance(defaultTaskManagerMemoryMB, defaultCpus);
this.slotsPerWorker = createWorkerSlotProfiles(flinkConfig);
+
+ final int containerLauncherNum =
flinkConfig.getInteger(YarnConfigOptions.CONTAINER_LAUNCHER_NUM_MAX);
+ this.startContainerExecutor = new
ThreadPoolExecutor(containerLauncherNum, containerLauncherNum,
Review comment:
Easier to use `Executors.newFixedThreadPool(size, ExecutorThreadFactory)`
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