and more details, when i kill the process of hbase. restart it again
,regionserver on 60030 can see,it started ok.
,but master on 60010 show this . and the data /hbase still in hadoop hdfs.
that 's what i want to say.
the data /hbase stays ,but i can't find any way to start hbase again.
HTTP ERROR: 500
Trying to contact region server null for region , row '', but failed
after 3 attempts.
Exceptions:
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region because: Failed setting up proxy to
/192.168.1.123:60020 after attempts=1
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region because: Failed setting up proxy to
/192.168.1.123:60020 after attempts=1
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region because: Failed setting up proxy to
/192.168.1.123:60020 after attempts=1
RequestURI=/master.jsp
Caused by:
org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to
contact region server null for region , row '', but failed after 3
attempts.
Exceptions:
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region because: Failed setting up proxy to
/192.168.1.123:60020 after attempts=1
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region because: Failed setting up proxy to
/192.168.1.123:60020 after attempts=1
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region because: Failed setting up proxy to
/192.168.1.123:60020 after attempts=1
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:1055)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:75)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:48)
at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.listTables(HConnectionManager.java:454)
at
org.apache.hadoop.hbase.client.HBaseAdmin.listTables(HBaseAdmin.java:127)
at
org.apache.hadoop.hbase.generated.master.master_jsp._jspService(master_jsp.java:132)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:533)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:207)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522)
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2010/6/24 梁景明 <[email protected]>
> exactly like this . it 's some problem with zookeeper, i am not sure what
> happen to zookeeper,
> it is all started .but port 60030 and 60010 not ok.
> ---------------------------------------------------------------------------
> futur...@test1:~/hbase$ bin/start-hbase.sh
> test1: zookeeper running as process 18596. Stop it first.
> master running as process 20047. Stop it first.
> s1.idfs.cn: regionserver running as process 18829. Stop it first.
> s2.idfs.cn: regionserver running as process 18763. Stop it first.
>
> ------------------------------------------------------------------------------------------
>
> and logs in hbase give me the following, and i dont know how to deal with
> it.if zookeeper is dead or goes with some problems,
> how do i do> stop-hbase.sh & start-hbase.sh don't work at all
>
>
> ------------------------------------------------------------------------------------------------------------
> 2010-06-24 11:33:29,713 WARN
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to create /hbase
> -- check quorum servers, currently=test1:2222
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
> at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:780)
> at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:808)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:405)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:432)
> at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.writeMasterAddress(ZooKeeperWrapper.java:520)
> at
> org.apache.hadoop.hbase.master.HMaster.writeAddressToZooKeeper(HMaster.java:260)
> at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:242)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.java:1230)
> at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1271)
> 2010-06-24 11:33:31,202 INFO org.apache.zookeeper.ClientCnxn: Attempting
> connection to server test1/192.168.1.122:2222
> 2010-06-24 11:33:31,203 INFO org.apache.zookeeper.ClientCnxn: Priming
> connection to java.nio.channels.SocketChannel[connected local=/
> 192.168.1.122:52706 remote=test1/192.168.1.122:2222]
> 2010-06-24 11:33:31,203 INFO org.apache.zookeeper.ClientCnxn: Server
> connection successful
> 2010-06-24 11:33:31,204 WARN org.apache.zookeeper.ClientCnxn: Exception
> closing session 0x0 to sun.nio.ch.selectionkeyi...@163f7a1
> java.io.IOException: Read error rc = -1 java.nio.DirectByteBuffer[pos=0
> lim=4 cap=4]
> at org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:701)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:945)
> 2010-06-24 11:33:31,204 WARN org.apache.zookeeper.ClientCnxn: Ignoring
> exception during shutdown input
> java.net.SocketException: Transport endpoint is not connected
> at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:640)
> at sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)
> at
> org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:999)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:970)
> 2010-06-24 11:33:31,204 WARN org.apache.zookeeper.ClientCnxn: Ignoring
> exception during shutdown output
> java.net.SocketException: Transport endpoint is not connected
> at sun.nio.ch.SocketChannelImpl.shutdown(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.shutdownOutput(SocketChannelImpl.java:651)
> at sun.nio.ch.SocketAdaptor.shutdownOutput(SocketAdaptor.java:368)
> at
> org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:1004)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:970)
>
>
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>
>
> 2010/6/22 Jean-Daniel Cryans <[email protected]>
>
> I'm not sure I understand what you describe, and since you didn't post
>> any output from your logs then it's really hard to help you debug.
>>
>> What's the problem exactly and do you see any exception in the logs?
>>
>> J-D
>>
>> On Mon, Jun 21, 2010 at 2:48 AM, 梁景明 <[email protected]> wrote:
>> > after reading "Description of how HBase uses ZooKeeper"i see my problem
>> > maybe that the regionserver session in zk is lost!
>> >
>> > and i use bin/start-hbase.sh cant start hbase successfully .
>> >
>> > because they connect to zookeeper something lost?
>> >
>> > to start it.one way i think zookeeper start alone ,and i delete "/hbase"
>> in
>> > it , and run the start-hbase.sh shell again?
>> >
>> > will it be ok?
>> >
>> > 2010/6/19 Jean-Daniel Cryans <[email protected]>
>> >
>> >> > do u mean if ZooKeeper is dead,the data will lose?
>> >>
>> >> If your Zookeeper ensemble is dead, then HBase will be unavailable but
>> >> you won't lose any data. And even if your zookeeper data is wiped out,
>> >> like I said it's only runtime data so it doesn't matter.
>> >>
>> >> >
>> >> > in that case,ZooKeeper lost .META or .ROOT ,the data in hadoop will
>> never
>> >> be
>> >> > recover , thought there were some table folders in hadoop.
>> >>
>> >> HBase stores the location of -ROOT- in Zookeeper, and that's changed
>> >> everytime the region moves. Losing that won't make -ROOT- disappear
>> >> forever, it's still in HDFS.
>> >>
>> >> Does it answer the question? (I'm not sure I fully understand you)
>> >>
>> >> J-D
>> >>
>> >
>>
>
>
