Re: [PR] [SPARK-47442][CORE][TEST] Use port 0 to start worker server in MasterSuite [spark]

["cloud-fan (via GitHub)" <gi...@apache.org>]

cloud-fan commented on code in PR #45566:
URL: https://github.com/apache/spark/pull/45566#discussion_r1528683383


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core/src/test/scala/org/apache/spark/deploy/master/MasterSuiteBase.scala:
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@@ -49,7 +49,7 @@ object MockWorker {
 class MockWorker(master: RpcEndpointRef, conf: SparkConf = new SparkConf) extends RpcEndpoint {
   val seq = MockWorker.counter.incrementAndGet()
   val id = seq.toString
-  override val rpcEnv: RpcEnv = RpcEnv.create("worker", "localhost", seq,
+  override val rpcEnv: RpcEnv = RpcEnv.create("worker", "localhost", 0,

Review Comment:
   just for my education, port 0 means using any available port?



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