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https://issues.apache.org/jira/browse/HBASE-24844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
wenfeiyi666 reassigned HBASE-24844:
-----------------------------------
Assignee: wenfeiyi666
> Exception on standalone (master) shutdown
> -----------------------------------------
>
> Key: HBASE-24844
> URL: https://issues.apache.org/jira/browse/HBASE-24844
> Project: HBase
> Issue Type: Bug
> Components: Zookeeper
> Affects Versions: 3.0.0-alpha-1
> Reporter: Nick Dimiduk
> Assignee: wenfeiyi666
> Priority: Minor
>
> Running HBase ({{master}} branch) in standalone mode, terminating the process
> results in the following stack traces logged at error. It appears we shutdown
> the zookeeper client out-of-order with {{shutdown}} of the thread pools.
> {noformat}
> 2020-08-10 14:21:46,777 INFO [RS:0;localhost:16020] zookeeper.ZooKeeper:
> Session: 0x100111361f20001 closed
> 2020-08-10 14:21:46,778 INFO [RS:0;localhost:16020]
> regionserver.HRegionServer: Exiting; stopping=localhost,16020,1597094491257;
> zookeeper connection closed.
> 2020-08-10 14:21:46,778 ERROR [main-EventThread] zookeeper.ClientCnxn: Error
> while calling watcher
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.FutureTask@6e61af4b rejected from
> java.util.concurrent.ThreadPoolExecutor@6a5e365f[Terminated, pool size = 0,
> active threads = 0, queued tasks = 0, completed tasks = 4]
> at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)
> at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1379)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
> at
> java.util.concurrent.Executors$DelegatedExecutorService.submit(Executors.java:678)
> at
> org.apache.hadoop.hbase.zookeeper.ZKWatcher.process(ZKWatcher.java:559)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:535)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:510)
> 2020-08-10 14:21:46,778 INFO [shutdown-hook-0] regionserver.ShutdownHook:
> Starting fs shutdown hook thread.
> 2020-08-10 14:21:46,779 ERROR [main-EventThread] zookeeper.ClientCnxn: Error
> while calling watcher
> java.util.concurrent.RejectedExecutionException: Task
> java.util.concurrent.FutureTask@7d41da91 rejected from
> java.util.concurrent.ThreadPoolExecutor@6a5e365f[Terminated, pool size = 0,
> active threads = 0, queued tasks = 0, completed tasks = 4]
> at
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)
> at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1379)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
> at
> java.util.concurrent.Executors$DelegatedExecutorService.submit(Executors.java:678)
> at
> org.apache.hadoop.hbase.zookeeper.ZKWatcher.process(ZKWatcher.java:559)
> at
> org.apache.hadoop.hbase.zookeeper.PendingWatcher.process(PendingWatcher.java:40)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:535)
> at
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:510)
> 2020-08-10 14:21:46,780 INFO [main-EventThread] zookeeper.ClientCnxn:
> EventThread shut down for session: 0x100111361f20001
> 2020-08-10 14:21:46,780 INFO [shutdown-hook-0] regionserver.ShutdownHook:
> Shutdown hook finished.
> {noformat}
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