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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2010/05/17 19:07:43 UTC
[jira] Updated: (HBASE-2428) NPE in ProcessRegionClose because meta
is offline kills master and thus the cluster
[ https://issues.apache.org/jira/browse/HBASE-2428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-2428:
-------------------------
Attachment: 2428-for0.20.txt
This patch distills from 2414 the fix for this issue. I want to apply to 0.20. Please review.
> NPE in ProcessRegionClose because meta is offline kills master and thus the cluster
> -----------------------------------------------------------------------------------
>
> Key: HBASE-2428
> URL: https://issues.apache.org/jira/browse/HBASE-2428
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Assignee: stack
> Priority: Blocker
> Fix For: 0.21.0
>
> Attachments: 2428-for0.20.txt
>
>
> This issue was born of study done in hbase-2413. The meta went offline and we were processing a region close at the same time. The close processing fell into a NPE loop and wouldn't get out of it killing master and effectivly killing the cluster:
> {code}
> 2010-03-31 17:50:57,004 INFO org.apache.hadoop.hbase.master.ServerManager: hbasetest020.X.X.X,60020,1270077892989 znode expired
> 2010-03-31 17:50:57,004 INFO org.apache.hadoop.hbase.master.RegionManager: META region removed from onlineMetaRegions
> 2010-03-31 17:51:15,385 INFO org.apache.hadoop.hbase.master.ServerManager: Received start message from: hbasetest020.X.X.X,60020,1270083075377
> 2010-03-31 17:51:15,399 DEBUG org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Updated ZNode /hbase/rs/1270083075377 with data 10.18.35.215:60020
> 2010-03-31 17:51:15,870 DEBUG org.apache.hadoop.hbase.master.RegionManager: Server is overloaded: load=5, avg=3.0, slop=0.3
> 2010-03-31 17:51:15,870 DEBUG org.apache.hadoop.hbase.master.RegionManager: Choosing to reassign 2 regions. mostLoadedRegions has 5 regions in it.
> 2010-03-31 17:51:15,870 DEBUG org.apache.hadoop.hbase.master.RegionManager: Going to close region test1,3147000000,1270081876965
> 2010-03-31 17:51:15,870 DEBUG org.apache.hadoop.hbase.master.RegionManager: Going to close region test1,9352000000,1270080893514
> 2010-03-31 17:51:15,870 INFO org.apache.hadoop.hbase.master.RegionManager: Skipped 0 region(s) that are in transition states
> 2010-03-31 17:51:15,878 INFO org.apache.hadoop.hbase.master.ServerManager: Processing MSG_REPORT_CLOSE: test1,3147000000,1270081876965 from hbasetest019.X.X.X,60020,1270082983630; 1 of 2
> 2010-03-31 17:51:15,879 INFO org.apache.hadoop.hbase.master.ServerManager: Processing MSG_REPORT_CLOSE: test1,9352000000,1270080893514 from hbasetest019.X.X.X,60020,1270082983630; 2 of 2
> 2010-03-31 17:51:44,897 DEBUG org.apache.hadoop.hbase.master.ProcessRegionClose$1: Trying to contact region server for regionName '.META.,,1', but failed after 10 attempts.
> Exception 1:
> java.io.IOException: Call to /10.18.35.215:60020 failed on local exception: java.io.EOFExceptionException 1:
> java.net.ConnectException: Connection refusedException 1:
> java.net.ConnectException: Connection refusedException 1:
> java.net.ConnectException: Connection refusedException 1:
> java.net.ConnectException: Connection refusedException 1:
> java.net.ConnectException: Connection refusedException 1:
> java.net.ConnectException: Connection refusedException 1:
> org.apache.hadoop.hbase.NotServingRegionException: org.apache.hadoop.hbase.NotServingRegionException: .META.,,1
> at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2282)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.delete(HRegionServer.java:1989)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:577)
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
> Exception 1:
> org.apache.hadoop.hbase.NotServingRegionException: org.apache.hadoop.hbase.NotServingRegionException: .META.,,1
> at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2282)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.delete(HRegionServer.java:1989)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:577)
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
> org.apache.hadoop.hbase.NotServingRegionException: org.apache.hadoop.hbase.NotServingRegionException: .META.,,1
> at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2282)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.delete(HRegionServer.java:1989)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:577)
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:94)
> at org.apache.hadoop.hbase.master.RetryableMetaOperation.doWithRetries(RetryableMetaOperation.java:74)
> at org.apache.hadoop.hbase.master.ProcessRegionClose.process(ProcessRegionClose.java:63)
> at org.apache.hadoop.hbase.master.HMaster.processToDoQueue(HMaster.java:494)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:429)
> 2010-03-31 17:51:44,899 DEBUG org.apache.hadoop.hbase.master.HMaster: Processing todo: ProcessRegionClose of test1,1230000000,1270081673808, false, reassign: true
> 2010-03-31 17:51:44,899 DEBUG org.apache.hadoop.hbase.master.ProcessRegionClose$1: Exception in RetryableMetaOperation:
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.master.RetryableMetaOperation.doWithRetries(RetryableMetaOperation.java:64)
> at org.apache.hadoop.hbase.master.ProcessRegionClose.process(ProcessRegionClose.java:63)
> at org.apache.hadoop.hbase.master.HMaster.processToDoQueue(HMaster.java:494)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:429)
> 2010-03-31 17:51:44,900 WARN org.apache.hadoop.hbase.master.HMaster: Processing pending operations: ProcessRegionClose of test1,1230000000,1270081673808, false, reassign: true
> java.lang.RuntimeException: java.lang.NullPointerException
> at org.apache.hadoop.hbase.master.RetryableMetaOperation.doWithRetries(RetryableMetaOperation.java:96)
> at org.apache.hadoop.hbase.master.ProcessRegionClose.process(ProcessRegionClose.java:63)
> at org.apache.hadoop.hbase.master.HMaster.processToDoQueue(HMaster.java:494)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:429)
> Caused by: java.lang.NullPointerException
> at org.apache.hadoop.hbase.master.RetryableMetaOperation.doWithRetries(RetryableMetaOperation.java:64)
> ... 3 more
> {code}
> ... and so on.
> Marking a blocker for 0.20.5.
> {code}
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