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From Azuryy Yu <azury...@gmail.com>
Subject Re: Unable to connect from windows desktop to HBase
Date Mon, 15 Apr 2013 10:37:19 GMT
 config = HBaseConfiguration.create();

this will read hbase-site.xml to get hmaster and zookeeper quorums, if not,
then zookeeper quorums and hbase.master are all empty. so you cannot get
connection.




On Mon, Apr 15, 2013 at 6:29 PM, Omkar Joshi <Omkar.Joshi@lntinfotech.com>wrote:

> Hi Azuryy,
>
> Thanks for the reply !
>
> It solved the issue but I'm not clear as to why this is required; also had
> to include the Google's protobuf-java-2.4.1.jar whose purpose is unclear to
> me.
>
> Regards,
> Omkar Joshi
>
>
> -----Original Message-----
> From: Azuryy Yu [mailto:azuryyyu@gmail.com]
> Sent: Monday, April 15, 2013 3:22 PM
> To: user@hbase.apache.org
> Subject: Re: Unable to connect from windows desktop to HBase
>
> you should put hbase-site.xml under your class path in your java client.
>
> then, don't need to specify zookeeper quorum in your code.
>
>
> On Mon, Apr 15, 2013 at 5:35 PM, Omkar Joshi <Omkar.Joshi@lntinfotech.com
> >wrote:
>
> > Attaching the dumps from the HBase UI :
> >
> > Debug dump :
> >
> > 55 active threads
> > Thread 10536 (IPC Client (47) connection to cldx-1139-1033/
> > 172.25.6.69:9000 from hduser):
> >   State: TIMED_WAITING
> >   Blocked count: 1
> >   Waited count: 2
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.ipc.Client$Connection.waitForWork(Client.java:706)
> >     org.apache.hadoop.ipc.Client$Connection.run(Client.java:748)
> > Thread 10535 (IPC Client (47) connection to cldx-1139-1033/
> > 172.25.6.69:60000 from hduser):
> >   State: TIMED_WAITING
> >   Blocked count: 3
> >   Waited count: 4
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.waitForWork(HBaseClient.java:534)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:579)
> > Thread 10121 (1840929932@qtp-1863048490-7):
> >   State: RUNNABLE
> >   Blocked count: 77
> >   Waited count: 415
> >   Stack:
> >     sun.management.ThreadImpl.getThreadInfo1(Native Method)
> >     sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:174)
> >     sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:139)
> >
> >
> org.apache.hadoop.util.ReflectionUtils.printThreadInfo(ReflectionUtils.java:149)
> >
> >
> org.apache.hadoop.util.ReflectionUtils.logThreadInfo(ReflectionUtils.java:203)
> >
> > org.apache.hadoop.http.HttpServer$StackServlet.doGet(HttpServer.java:721)
> >     javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> >     javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> >
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> >
> >
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> >
> >
> org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:835)
> >
> >
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> >
> > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> >
> >
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> >
> > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> >
> > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> >     org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> >
> >
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> >
> > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> >     org.mortbay.jetty.Server.handle(Server.java:326)
> > Thread 1689 (MASTER_OPEN_REGION-cldx-1139-1033,60000,1365517046931-3):
> >   State: WAITING
> >   Blocked count: 2
> >   Waited count: 4
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@35d87abc
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 260 (MASTER_OPEN_REGION-cldx-1139-1033,60000,1365517046931-2):
> >   State: WAITING
> >   Blocked count: 2
> >   Waited count: 4
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@35d87abc
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 251
> (MASTER_TABLE_OPERATIONS-cldx-1139-1033,60000,1365517046931-0):
> >   State: WAITING
> >   Blocked count: 25
> >   Waited count: 31
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@1fce66ba
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 82 (cldx-1139-1033,60000,1365517046931-CatalogJanitor):
> >   State: TIMED_WAITING
> >   Blocked count: 5247
> >   Waited count: 6944
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 81 (cldx-1139-1033,60000,1365517046931-BalancerChore):
> >   State: TIMED_WAITING
> >   Blocked count: 39
> >   Waited count: 1736
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 80 (MASTER_OPEN_REGION-cldx-1139-1033,60000,1365517046931-1):
> >   State: WAITING
> >   Blocked count: 2
> >   Waited count: 3
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@35d87abc
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 79 (MASTER_OPEN_REGION-cldx-1139-1033,60000,1365517046931-0):
> >   State: WAITING
> >   Blocked count: 2
> >   Waited count: 3
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@35d87abc
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 77 (master-cldx-1139-1033,60000,1365517046931-EventThread):
> >   State: WAITING
> >   Blocked count: 1
> >   Waited count: 5
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@10590940
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >     org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:491)
> > Thread 76
> >
> (master-cldx-1139-1033,60000,1365517046931-SendThread(cldx-1140-1034:2181)):
> >   State: RUNNABLE
> >   Blocked count: 40
> >   Waited count: 0
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:338)
> >     org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > Thread 68 (cldx-1139-1033,60000,1365517046931.timeoutMonitor):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 52060
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 75 (Timer-0):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 17354
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.util.TimerThread.mainLoop(Timer.java:552)
> >     java.util.TimerThread.run(Timer.java:505)
> > Thread 74 (307539625@qtp-1863048490-1 - Acceptor0
> > SelectChannelConnector@0.0.0.0:60010):
> >   State: RUNNABLE
> >   Blocked count: 92
> >   Waited count: 1
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >
> >
> org.mortbay.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:498)
> >     org.mortbay.io.nio.SelectorManager.doSelect(SelectorManager.java:192)
> >
> >
> org.mortbay.jetty.nio.SelectChannelConnector.accept(SelectChannelConnector.java:124)
> >
> >
> org.mortbay.jetty.AbstractConnector$Acceptor.run(AbstractConnector.java:708)
> >
> >
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> > Thread 71
> (master-cldx-1139-1033,60000,1365517046931.archivedHFileCleaner):
> >   State: TIMED_WAITING
> >   Blocked count: 8718
> >   Waited count: 17353
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 70 (master-cldx-1139-1033,60000,1365517046931.oldLogCleaner):
> >   State: TIMED_WAITING
> >   Blocked count: 8934
> >   Waited count: 17353
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 69 (cldx-1139-1033,60000,1365517046931.timerUpdater):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 52061
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 45 (LeaseChecker):
> >   State: TIMED_WAITING
> >   Blocked count: 1
> >   Waited count: 520519
> >   Stack:
> >     java.lang.Thread.sleep(Native Method)
> >
> org.apache.hadoop.hdfs.DFSClient$LeaseChecker.run(DFSClient.java:1379)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 43
> > (cldx-1139-1033,60000,1365517046931.splitLogManagerTimeoutMonitor):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 520520
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.Chore.run(Chore.java:75)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 9 (master-cldx-1139-1033,60000,1365517046931):
> >   State: TIMED_WAITING
> >   Blocked count: 322
> >   Waited count: 520958
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:91)
> >     org.apache.hadoop.hbase.util.Sleeper.sleep(Sleeper.java:55)
> >     org.apache.hadoop.hbase.master.HMaster.loop(HMaster.java:489)
> >     org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:387)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 40 (Timer thread for monitoring jvm):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 52062
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.util.TimerThread.mainLoop(Timer.java:552)
> >     java.util.TimerThread.run(Timer.java:505)
> > Thread 39 (Timer thread for monitoring hbase):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 52062
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.util.TimerThread.mainLoop(Timer.java:552)
> >     java.util.TimerThread.run(Timer.java:505)
> > Thread 38 (REPL IPC Server handler 2 on 60000):
> >   State: WAITING
> >   Blocked count: 0
> >   Waited count: 1
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@b34817a
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 37 (REPL IPC Server handler 1 on 60000):
> >   State: WAITING
> >   Blocked count: 0
> >   Waited count: 1
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@b34817a
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 36 (REPL IPC Server handler 0 on 60000):
> >   State: WAITING
> >   Blocked count: 0
> >   Waited count: 1
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@b34817a
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 35 (IPC Server handler 9 on 60000):
> >   State: WAITING
> >   Blocked count: 33
> >   Waited count: 17376
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 34 (IPC Server handler 8 on 60000):
> >   State: WAITING
> >   Blocked count: 0
> >   Waited count: 17343
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 33 (IPC Server handler 7 on 60000):
> >   State: WAITING
> >   Blocked count: 50
> >   Waited count: 17393
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 32 (IPC Server handler 6 on 60000):
> >   State: WAITING
> >   Blocked count: 13
> >   Waited count: 17355
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 31 (IPC Server handler 5 on 60000):
> >   State: WAITING
> >   Blocked count: 27
> >   Waited count: 17368
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 30 (IPC Server handler 4 on 60000):
> >   State: WAITING
> >   Blocked count: 26
> >   Waited count: 17370
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 29 (IPC Server handler 3 on 60000):
> >   State: WAITING
> >   Blocked count: 13
> >   Waited count: 17357
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 28 (IPC Server handler 2 on 60000):
> >   State: WAITING
> >   Blocked count: 57
> >   Waited count: 17401
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 27 (IPC Server handler 1 on 60000):
> >   State: WAITING
> >   Blocked count: 12
> >   Waited count: 17356
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 26 (IPC Server handler 0 on 60000):
> >   State: WAITING
> >   Blocked count: 13
> >   Waited count: 17357
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@24207655
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1398)
> > Thread 10 (IPC Server listener on 60000):
> >   State: RUNNABLE
> >   Blocked count: 17
> >   Waited count: 0
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener.run(HBaseServer.java:636)
> > Thread 23 (IPC Server Responder):
> >   State: RUNNABLE
> >   Blocked count: 0
> >   Waited count: 0
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Responder.doRunLoop(HBaseServer.java:825)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Responder.run(HBaseServer.java:808)
> > Thread 25 (main-EventThread):
> >   State: WAITING
> >   Blocked count: 30
> >   Waited count: 55
> >   Waiting on
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@4f38d8fa
> >   Stack:
> >     sun.misc.Unsafe.park(Native Method)
> >     java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> >
> >
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> >
> >
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
> >     org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:491)
> > Thread 24 (main-SendThread(cldx-1140-1034:2181)):
> >   State: RUNNABLE
> >   Blocked count: 50
> >   Waited count: 0
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:338)
> >     org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > Thread 21 (Timer thread for monitoring rpc):
> >   State: TIMED_WAITING
> >   Blocked count: 0
> >   Waited count: 52062
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.util.TimerThread.mainLoop(Timer.java:552)
> >     java.util.TimerThread.run(Timer.java:505)
> > Thread 20 (IPC Reader 9 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 1
> >   Waited count: 1
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 19 (IPC Reader 8 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 1
> >   Waited count: 1
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 18 (IPC Reader 7 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 2
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 17 (IPC Reader 6 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 2
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 16 (IPC Reader 5 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 2
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 15 (IPC Reader 4 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 2
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 14 (IPC Reader 3 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 2
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 13 (IPC Reader 2 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 2
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 12 (IPC Reader 1 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 3
> >   Waited count: 2
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 11 (IPC Reader 0 on port 60000):
> >   State: RUNNABLE
> >   Blocked count: 1
> >   Waited count: 1
> >   Stack:
> >     sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
> >     sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228)
> >     sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81)
> >     sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
> >     sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:528)
> >
> >
> org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
> >
> >
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> >     java.lang.Thread.run(Thread.java:722)
> > Thread 5 (Signal Dispatcher):
> >   State: RUNNABLE
> >   Blocked count: 0
> >   Waited count: 0
> >   Stack:
> > Thread 3 (Finalizer):
> >   State: WAITING
> >   Blocked count: 539
> >   Waited count: 540
> >   Waiting on java.lang.ref.ReferenceQueue$Lock@11499ff
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
> >     java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
> >     java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:177)
> > Thread 2 (Reference Handler):
> >   State: WAITING
> >   Blocked count: 538
> >   Waited count: 539
> >   Waiting on java.lang.ref.Reference$Lock@6f8a34e6
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.lang.Object.wait(Object.java:503)
> >     java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
> > Thread 1 (main):
> >   State: WAITING
> >   Blocked count: 16
> >   Waited count: 17
> >   Waiting on java.lang.Thread@3a246847
> >   Stack:
> >     java.lang.Object.wait(Native Method)
> >     java.lang.Thread.join(Thread.java:1258)
> >     java.lang.Thread.join(Thread.java:1332)
> >     org.apache.hadoop.hbase.util.HasThread.join(HasThread.java:86)
> >
> >
> org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:158)
> >
> >
> org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:104)
> >     org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> >
> >
> org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:76)
> >     org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1944)
> >
> >
> >
> >
> > Regards,
> > Omkar Joshi
> >
> > -----Original Message-----
> > From: Omkar Joshi [mailto:Omkar.Joshi@lntinfotech.com]
> > Sent: Monday, April 15, 2013 9:12 AM
> > To: user@hbase.apache.org
> > Subject: Unable to connect from windows desktop to HBase
> >
> > Hi,
> >
> > I'm trying to connect from a Java client running on a Windows desktop
> > machine to a remote HBase cluster running in the distributed mode(atop
> > 2-node Hadoop cluster).
> >
> > 1.      On the master(namenode)node :
> > hduser@cldx-1139-1033
> :~/hadoop_ecosystem/apache_hbase/hbase_installation/hbase-0.94.6.1/bin$
> > jps
> > 9161 HMaster
> > 4536 SecondaryNameNode
> > 4368 DataNode
> > 4645 JobTracker
> > 8395 Jps
> > 4813 TaskTracker
> > 4179 NameNode
> > 7717 Main
> >
> >
> >
> > 2.       On the slave(datanode)node :
> >
> >
> > hduser@cldx-1140-1034:~$ jps
> >
> > 5677 HRegionServer
> >
> > 5559 HQuorumPeer
> >
> > 2634 TaskTracker
> >
> > 3260 Jps
> >
> > 2496 DataNode
> >
> >
> >
> > 3.       I also connected to the shell and created a hbase table and also
> > able to scan it :
> >
> >
> > hbase(main):004:0> scan 'CUSTOMERS'
> >
> > ROW                              COLUMN+CELL
> >
> >  CUSTID12345                     column=CUSTOMER_INFO:EMAIL,
> > timestamp=1365600369284, value=Omkar.Joshi@lntinfotech.com
> >
> >  CUSTID12345                     column=CUSTOMER_INFO:NAME,
> > timestamp=1365600052104, value=Omkar Joshi
> >
> >  CUSTID614                       column=CUSTOMER_INFO:NAME,
> > timestamp=1365601350972, value=Prachi Shah
> >
> > 2 row(s) in 0.8760 seconds
> >
> >
> >
> > 4.       The hbase-site.xml has the following configurations:
> >
> >
> > <configuration>
> >
> > <property>
> >
> >     <name>hbase.zookeeper.quorum</name>
> >
> >     <value>cldx-1140-1034</value>
> >
> >     <description>The directory shared by RegionServers.
> >
> >     </description>
> >
> > </property>
> >
> > <property>
> >
> >     <name>hbase.zookeeper.property.dataDir</name>
> >
> >     <value>/home/hduser/hadoop_ecosystem/apache_hbase/zk_datadir</value>
> >
> >     <description>Property from ZooKeeper's config zoo.cfg.
> >
> >     The directory where the snapshot is stored.
> >
> >     </description>
> >
> > </property>
> >
> > <property>
> >
> >     <name>hbase.rootdir</name>
> >
> >     <value>hdfs://cldx-1139-1033:9000/hbase</value>
> >
> >     <description>The directory shared by RegionServers.</description>
> >
> > </property>
> >
> > <property>
> >
> >     <name>hbase.cluster.distributed</name>
> >
> >     <value>true</value>
> >
> >     <description>The mode the cluster will be in. Possible values are
> > false: standalone and pseudo-distributed setups with managed Zookeeper
> > true: fully-distributed with unmanaged Zookeeper Quorum (see
> > hbase-env.sh)</description>
> >
> > </property>
> >
> > </configuration>
> >
> >
> >
> > 5.       The Hadoop's core-site.xml has the following settings :
> >
> >
> > <configuration>
> >
> > <property>
> >
> > <name>fs.default.name</name>
> >
> > <value>hdfs://cldx-1139-1033:9000</value>
> >
> > </property>
> >
> > </configuration>
> >
> >
> >
> > 6.       My java client class is :
> >
> >
> > package client.hbase;
> >
> >
> >
> > import java.io.IOException;
> >
> > import java.util.List;
> >
> >
> >
> > import org.apache.hadoop.conf.Configuration;
> >
> > import org.apache.hadoop.hbase.HBaseConfiguration;
> >
> > import org.apache.hadoop.hbase.HColumnDescriptor;
> >
> > import org.apache.hadoop.hbase.HTableDescriptor;
> >
> > import org.apache.hadoop.hbase.client.HBaseAdmin;
> >
> > import org.apache.hadoop.hbase.client.HTableInterface;
> >
> > import org.apache.hadoop.hbase.client.HTablePool;
> >
> > import org.apache.hadoop.hbase.client.Put;
> >
> > import org.apache.hadoop.hbase.client.Result;
> >
> > import org.apache.hadoop.hbase.client.ResultScanner;
> >
> > import org.apache.hadoop.hbase.client.Scan;
> >
> > import org.apache.hadoop.hbase.filter.CompareFilter;
> >
> > import org.apache.hadoop.hbase.filter.Filter;
> >
> > import org.apache.hadoop.hbase.filter.RegexStringComparator;
> >
> > import org.apache.hadoop.hbase.filter.ValueFilter;
> >
> > import org.apache.hadoop.hbase.util.Bytes;
> >
> >
> >
> > public class HBaseCRUD {
> >
> >
> >
> >     private static Configuration config;
> >
> >     private static HBaseAdmin hbaseAdmin;
> >
> >
> >
> >     private static HTablePool hTablePool;
> >
> >
> >
> >     static {
> >
> >         config = HBaseConfiguration.create();
> >
> >         config.set("hbase.zookeeper.quorum", "172.25.6.69");
> >
> >
> >
> >         hTablePool = new HTablePool(config, 2);
> >
> >     }
> >
> >
> >
> >     /**
> >
> >      * @param args
> >
> >      * @throws IOException
> >
> >      */
> >
> >     public static void main(String[] args) throws IOException {
> >
> >         // TODO Auto-generated method stub
> >
> >
> >
> >         HBaseCRUD hbaseCRUD = new HBaseCRUD();
> >
> >
> >
> >         /*hbaseCRUD.createTables("CUSTOMERS", "CUSTOMER_INFO");
> >
> >
> >
> >         hbaseCRUD.populateTableData("CUSTOMERS");*/
> >
> >
> >
> >         hbaseCRUD.scanTable("CUSTOMERS", "CUSTOMER_INFO", "EMAIL");
> >
> >     }
> >
> >
> >
> >     private void createTables(String tableName, String...
> > columnFamilyNames)
> >
> >             throws IOException {
> >
> >         // TODO Auto-generated method stub
> >
> >
> >
> >         HTableDescriptor tableDesc = new HTableDescriptor(tableName);
> >
> >
> >
> >         if (!(columnFamilyNames == null || columnFamilyNames.length ==
> 0))
> > {
> >
> >
> >
> >             for (String columnFamilyName : columnFamilyNames) {
> >
> >
> >
> >                 HColumnDescriptor columnFamily = new HColumnDescriptor(
> >
> >                         columnFamilyName);
> >
> >
> >
> >                 tableDesc.addFamily(columnFamily);
> >
> >             }
> >
> >         }
> >
> >
> >
> >         hbaseAdmin.createTable(tableDesc);
> >
> >     }
> >
> >
> >
> >     private void populateTableData(String tableName) throws IOException {
> >
> >         HTableInterface tbl =
> > hTablePool.getTable(Bytes.toBytes(tableName));
> >
> >
> >
> >         List<Put> tblRows = getTableData(tableName);
> >
> >
> >
> >         tbl.close();
> >
> >     }
> >
> >
> >
> >     private List<Put> getTableData(String tableName) {
> >
> >         // TODO Auto-generated method stub
> >
> >
> >
> >         if (tableName == null || tableName.isEmpty())
> >
> >             return null;
> >
> >
> >
> >         /* Pull data from wherever located */
> >
> >
> >
> >         if (tableName.equalsIgnoreCase("CUSTOMERS")) {
> >
> >
> >
> >             /*
> >
> >              * Put p1 = new Put(); p1.add(Bytes.toBytes("CUSTOMER_INFO"),
> >
> >              * Bytes.toBytes("NAME"), value)
> >
> >              */
> >
> >         }
> >
> >
> >
> >         return null;
> >
> >     }
> >
> >
> >
> >     private void scanTable(String tableName, String columnFamilyName,
> >
> >             String... columnNames) throws IOException {
> >
> >
> >
> >         System.out.println("In HBaseCRUD.scanTable(...)");
> >
> >
> >
> >         Scan scan = new Scan();
> >
> >         if (!(columnNames == null || columnNames.length <= 0)) {
> >
> >
> >
> >             for (String columnName : columnNames) {
> >
> >
> >
> >                 scan.addColumn(Bytes.toBytes(columnFamilyName),
> >
> >                         Bytes.toBytes(columnName));
> >
> >             }
> >
> >
> >
> >             Filter filter = new
> ValueFilter(CompareFilter.CompareOp.EQUAL,
> >
> >                     new RegexStringComparator("lntinfotech"));
> >
> >             scan.setFilter(filter);
> >
> >         }
> >
> >
> >
> >         HTableInterface tbl =
> > hTablePool.getTable(Bytes.toBytes(tableName));
> >
> >         ResultScanner scanResults = tbl.getScanner(scan);
> >
> >
> >
> >         for (Result result : scanResults) {
> >
> >             System.out.println("The result is " + result);
> >
> >         }
> >
> >
> >
> >         tbl.close();
> >
> >     }
> >
> > }
> >
> >
> >
> > 7.       The exception I get is :
> >
> >
> > In HBaseCRUD.scanTable(...)
> >
> > SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
> >
> > SLF4J: Defaulting to no-operation (NOP) logger implementation
> >
> > SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for
> further
> > details.
> >
> > Apr 10, 2013 4:24:54 PM
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper <init>
> >
> > INFO: The identifier of this process is 3648@INFVA03351
> >
> > Apr 10, 2013 4:24:56 PM
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper retryOrThrow
> >
> > WARNING: Possibly transient ZooKeeper exception:
> > org.apache.zookeeper.KeeperException$ConnectionLossException:
> > KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
> >
> > Apr 10, 2013 4:24:56 PM org.apache.hadoop.hbase.util.RetryCounter
> > sleepUntilNextRetry
> >
> > INFO: Sleeping 2000ms before retry #1...
> >
> > Apr 10, 2013 4:24:58 PM
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper retryOrThrow
> >
> > WARNING: Possibly transient ZooKeeper exception:
> > org.apache.zookeeper.KeeperException$ConnectionLossException:
> > KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
> >
> > Apr 10, 2013 4:24:58 PM org.apache.hadoop.hbase.util.RetryCounter
> > sleepUntilNextRetry
> >
> > INFO: Sleeping 4000ms before retry #2...
> >
> >
> > I have also made the master's entry in my local machine's host file. What
> > can be the error?
> >
> > Thanks and regards !
> >
> >
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> > sender and delete it from their system. L&T Infotech will not accept
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> >
>

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