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From Sebastian Bauer <ad...@ugame.net.pl>
Subject Re: HBase exception after upgrading from hbase-0.90-branch to trunk
Date Thu, 11 Aug 2011 19:42:26 GMT
i had copy of -ROOT- and .META. and -ROOT- have this enries:

  -ROOT-,,0                                                 
column=info:metamigrated, timestamp=1313090419241, value=\xFF
  .META.,,1                                                 
column=info:regioninfo, timestamp=1278560826938, value=REGION => {NAME 
=> '.META.,,1 TableName => ', STARTKEY => '', ENDKEY => '', ENCODED => 
1028785192,}
  .META.,,1                                                 
column=info:server, timestamp=1313090415016, value=db2a.goldenline.pl:60020
  .META.,,1                                                 
column=info:serverstartcode, timestamp=1313090415016, value=1313090405903

so any help appreciate :)

Pozdrawiam
Sebastian Bauer
-----------------------------------------------------
http://tikecik.pl


On 11.08.2011 20:54, Sebastian Bauer wrote:
> First of i had problem with .META. table, shell and thrift said that i 
> dont have this table, but hbase operating almost
> normal and all regions were online, but i cannot make ICV, so i had 
> stoped hbase and removed -ROOT- and .META. after starting hbase again 
> and running add_table.rb on all tables and restarting hbase again i 
> get a lot of this errors:
>
> 2011-08-11 20:53:55,889 WARN 
> org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of 
> Golden_ATU,m_ef06511a814155022686d50cebb0dba5_2010_9_40CC7C8170915ABC43432E524F0E6D2B,1301066006080.f656ca602b8638ad8329c36af85ae43e.

> to db2a.goldenline.pl,60020,1313088827048, trying to assign elsewhere 
> instead; retry=
> org.apache.hadoop.ipc.RemoteException: java.io.IOException: 
> java.lang.IllegalArgumentException: Can not create a Path from an 
> empty string
>         at org.apache.hadoop.fs.Path.checkPathArg(Path.java:82)
>         at org.apache.hadoop.fs.Path.<init>(Path.java:90)
>         at org.apache.hadoop.fs.Path.<init>(Path.java:50)
>         at 
> org.apache.hadoop.hbase.util.FSUtils.getTablePath(FSUtils.java:845)
>         at 
> org.apache.hadoop.hbase.util.FSUtils.getTableInfoPath(FSUtils.java:818)
>         at 
> org.apache.hadoop.hbase.util.FSUtils.getTableInfoModtime(FSUtils.java:832)
>         at 
> org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:127) 
>
>         at 
> org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:99) 
>
>         at 
> org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:2329)

>
>         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.WritableRpcEngine$Server.call(WritableRpcEngine.java:312)

>
>         at 
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1222)
>
>         at 
> org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:871)
>         at 
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:141)

>
>         at $Proxy7.openRegion(Unknown Source)
>         at 
> org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:404) 
>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1239)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1034)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1014)

>
>         at 
> org.apache.hadoop.hbase.master.handler.ClosedRegionHandler.process(ClosedRegionHandler.java:101)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.addToRITandCallClose(AssignmentManager.java:458)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionsInTransition(AssignmentManager.java:389)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransition(AssignmentManager.java:355)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionsInTransition(AssignmentManager.java:296)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.joinCluster(AssignmentManager.java:243)

>
>         at 
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:467) 
>
>         at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:300)
>
> 2011-08-11 20:53:55,895 WARN 
> org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment of 
> Golden_ATU,m_ef06511a814155022686d50cebb0dba5_2010_9_40CC7C8170915ABC43432E524F0E6D2B,1301066006080.f656ca602b8638ad8329c36af85ae43e.

> to db2b.goldenline.pl,60020,1313088826553, trying to assign elsewhere 
> instead; retry=
> org.apache.hadoop.ipc.RemoteException: java.io.IOException: 
> java.lang.IllegalArgumentException: Can not create a Path from an 
> empty string
>         at org.apache.hadoop.fs.Path.checkPathArg(Path.java:82)
>         at org.apache.hadoop.fs.Path.<init>(Path.java:90)
>         at org.apache.hadoop.fs.Path.<init>(Path.java:50)
>         at 
> org.apache.hadoop.hbase.util.FSUtils.getTablePath(FSUtils.java:845)
>         at 
> org.apache.hadoop.hbase.util.FSUtils.getTableInfoPath(FSUtils.java:818)
>         at 
> org.apache.hadoop.hbase.util.FSUtils.getTableInfoModtime(FSUtils.java:832)
>         at 
> org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:127) 
>
>         at 
> org.apache.hadoop.hbase.util.FSTableDescriptors.get(FSTableDescriptors.java:99) 
>
>         at 
> org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:2329)

>
>         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.WritableRpcEngine$Server.call(WritableRpcEngine.java:312)

>
>         at 
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1222)
>
>         at 
> org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:871)
>         at 
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:141)

>
>         at $Proxy7.openRegion(Unknown Source)
>         at 
> org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:404) 
>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1239)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1034)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1014)

>
>         at 
> org.apache.hadoop.hbase.master.handler.ClosedRegionHandler.process(ClosedRegionHandler.java:101)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.addToRITandCallClose(AssignmentManager.java:458)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionsInTransition(AssignmentManager.java:389)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransition(AssignmentManager.java:355)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.processRegionsInTransition(AssignmentManager.java:296)

>
>         at 
> org.apache.hadoop.hbase.master.AssignmentManager.joinCluster(AssignmentManager.java:243)

>
>         at 
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:467) 
>
>         at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:300)
>

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