[jira] Updated: (HBASE-3122) NPE in master.AssignmentManager if all region servers shut down

["Jean-Daniel Cryans (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-3122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Daniel Cryans updated HBASE-3122:
--------------------------------------

    Priority: Blocker  (was: Minor)

Upgrading to blocker, need it for 0.90.0 for all the first time testers out there that will mess up their setup and will get stuck.

> NPE in master.AssignmentManager if all region servers shut down
> ---------------------------------------------------------------
>
>                 Key: HBASE-3122
>                 URL: https://issues.apache.org/jira/browse/HBASE-3122
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.90.0
>            Reporter: Andrew Purtell
>            Assignee: stack
>            Priority: Blocker
>             Fix For: 0.90.0
>
>
> 10/10/18 16:26:44 INFO catalog.CatalogTracker: acer,60020,1287443908850 carrying .META.; unsetting .META. location
> 10/10/18 16:26:44 INFO catalog.CatalogTracker: Current cached META location is not valid, resetting
> 10/10/18 16:26:44 INFO handler.ServerShutdownHandler: Splitting logs for acer,60020,1287443908850
> 10/10/18 16:26:44 INFO zookeeper.ZKUtil: hconnection-0x12bc1a2f0a60001 Set watcher on existing znode /hbase/root-region-server
> 10/10/18 16:26:44 INFO catalog.RootLocationEditor: Unsetting ROOT region location in ZooKeeper
> 10/10/18 16:26:44 DEBUG zookeeper.ZKAssign: master:60000-0x12bc1a2f0a60000 Creating (or updating) unassigned node for 70236052 with OFFLINE state
> 10/10/18 16:26:44 WARN master.LoadBalancer: Wanted to do random assignment but no servers to assign to
> 10/10/18 16:26:44 ERROR executor.EventHandler: Caught throwable while processing event M_SERVER_SHUTDOWN
> java.lang.NullPointerException
> 	at org.apache.hadoop.hbase.master.LoadBalancer$RegionPlan.toString(LoadBalancer.java:595)
> 	at java.lang.String.valueOf(String.java:2826)
> 	at java.lang.StringBuilder.append(StringBuilder.java:115)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.getRegionPlan(AssignmentManager.java:803)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.getRegionPlan(AssignmentManager.java:777)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:720)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:640)
> 	at org.apache.hadoop.hbase.master.AssignmentManager.assignRoot(AssignmentManager.java:922)
> 	at org.apache.hadoop.hbase.master.handler.ServerShutdownHandler.process(ServerShutdownHandler.java:97)
> 	at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:150)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:619)

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