Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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3.0.0-alpha-2
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None
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None
Description
Run hbase in standalone mode off of master, terminate the process with ^C. The process takes its sweet time to terminate. Luckily, we have some thread management utility code to inspect this behavior. Jetty takes a little time to shutdown, but does eventually. More problematic is the ZooKeeper client, which appears to not take a hint. In fact, the client attempts to initiate new connections to a service which has already been terminated, making matters worse.
2022-06-06T11:59:36,137 INFO [main] util.Threads: Non daemon thread SessionTracker is still alive
2022-06-06T11:59:36,137 INFO [main] util.Threads:
java.base@11.0.11/java.lang.Thread.sleep(Native Method)
app//org.apache.zookeeper.server.SessionTrackerImpl.run(SessionTrackerImpl.java:151)
2022-06-06T11:59:36,137 INFO [main] util.Threads: Non daemon thread RS:0;192.168.178.157:16020 is still alive
2022-06-06T11:59:36,137 INFO [main] util.Threads:
java.base@11.0.11/java.lang.Object.wait(Native Method)
java.base@11.0.11/java.lang.Object.wait(Object.java:328)
app//org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1529)
app//org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1512)
app//org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:1791)
app//org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.delete(RecoverableZooKeeper.java:210)
app//org.apache.hadoop.hbase.zookeeper.ZKUtil.deleteNode(ZKUtil.java:851)
app//org.apache.hadoop.hbase.zookeeper.ZKUtil.deleteNode(ZKUtil.java:843)
app//org.apache.hadoop.hbase.regionserver.HRegionServer.deleteMyEphemeralNode(HRegionServer.java:1453)
app//org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:969)
java.base@11.0.11/java.lang.Thread.run(Thread.java:829)
2022-06-06T11:59:36,137 INFO [main] util.Threads: Non daemon thread Thread-2 is still alive
2022-06-06T11:59:36,138 INFO [main] util.Threads:
java.base@11.0.11/jdk.internal.misc.Unsafe.park(Native Method)
java.base@11.0.11/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:234)
java.base@11.0.11/java.util.concurrent.FutureTask.awaitDone(FutureTask.java:444)
java.base@11.0.11/java.util.concurrent.FutureTask.get(FutureTask.java:203)
app//org.apache.hadoop.util.ShutdownHookManager.executeShutdown(ShutdownHookManager.java:124)
app//org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:95)
2022-06-06T11:59:36,392 INFO [SessionTracker] server.SessionTrackerImpl: SessionTrackerImpl exited loop!
2022-06-06T11:59:36,442 INFO [main-SendThread(127.0.0.1:2181)] zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown err
or)
2022-06-06T11:59:36,442 INFO [main-SendThread(127.0.0.1:2181)] zookeeper.ClientCnxn: Socket error occurred: localhost/127.0.0.1:2181: Connection refused
Full session in the attached log.