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Jungtaek Lim commented on SPARK-31946: -------------------------------------- That message is intended. It wasn't showing which feature is impacted by such error, and we dealt with allowing custom error message on register. > Failed to register SIGPWR handler on MacOS > ------------------------------------------ > > Key: SPARK-31946 > URL: https://issues.apache.org/jira/browse/SPARK-31946 > Project: Spark > Issue Type: Sub-task > Components: Spark Core > Affects Versions: 3.1.0 > Environment: macOS 10.14.6 > Reporter: wuyi > Priority: Major > > > {code:java} > 20/06/09 22:54:54 WARN SignalUtils: Failed to register SIGPWR handler - > disabling decommission feature. > java.lang.IllegalArgumentException: Unknown signal: PWR > at sun.misc.Signal.<init>(Signal.java:143) > at > org.apache.spark.util.SignalUtils$.$anonfun$register$1(SignalUtils.scala:83) > at scala.collection.mutable.HashMap.getOrElseUpdate(HashMap.scala:86) > at org.apache.spark.util.SignalUtils$.register(SignalUtils.scala:81) > at > org.apache.spark.executor.CoarseGrainedExecutorBackend.onStart(CoarseGrainedExecutorBackend.scala:86) > at org.apache.spark.rpc.netty.Inbox.$anonfun$process$1(Inbox.scala:120) > at org.apache.spark.rpc.netty.Inbox.safelyCall(Inbox.scala:203) > at org.apache.spark.rpc.netty.Inbox.process(Inbox.scala:100) > at > org.apache.spark.rpc.netty.MessageLoop.org$apache$spark$rpc$netty$MessageLoop$$receiveLoop(MessageLoop.scala:75) > at > org.apache.spark.rpc.netty.MessageLoop$$anon$1.run(MessageLoop.scala:41) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748) > {code} > Seem like MacOS is *POSIX* compliant. But SIGPWR is not specified in the > *POSIX* specification. See [https://en.wikipedia.org/wiki/Signal_(IPC)#SIGPWR] > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org