Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/10794#discussion_r53902497
--- Diff:
yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnAllocator.scala ---
@@ -169,6 +172,24 @@ private[yarn] class YarnAllocator(
}
/**
+ * Init `executorIdCounter`
+ */
+ def initExecutorIdCounter(): Unit = {
+ val port = sparkConf.getInt("spark.yarn.am.port", 0)
+ SparkHadoopUtil.get.runAsSparkUser { () =>
+ val init = RpcEnv.create(
+ "executorIdCounterInit",
+ Utils.localHostName,
+ port,
+ sparkConf,
+ new SecurityManager(sparkConf))
+ val driver = init.setupEndpointRefByURI(driverUrl)
--- End diff --
`YarnSchedulerBackend` extends `CoarseGrainedSchedulerBackend`, so what you
mentioned can be achieved, you can check other codes inside the class to know
how other codes handle this. Creating another endpoint is not necessary and
weird here.
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