wuyi created SPARK-31946:
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Summary: 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:
{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]
Reporter: wuyi
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