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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Please help me how and when to catch java.net.ConnectException in case hbase is not running as it goes on connecting with hbase
Date Thu, 28 Mar 2013 13:50:11 GMT
The second sentence below seems incomplete.

Can you give us more information (such as zookeeper log) ?

Thanks

On Thu, Mar 28, 2013 at 3:26 AM, gaurhari dass <gaurharidass@gmail.com>wrote:

> I am using hbase .94.5 version ,I havent mentioned in class path
>
> On Thu, Mar 28, 2013 at 5:01 AM, Ted Yu <yuzhihong@gmail.com> wrote:
>
> > bq. org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(
> > RecoverableZooKeeper.java:172)
> >
> > The exception showed problem connecting to zookeeper.
> > Is hbase-site.xml on the classpath of your app ?
> >
> > If so, please check (and pastebin) zookeeper log.
> >
> > Providing HBase version would be useful as well.
> >
> > On Tue, Mar 26, 2013 at 12:24 AM, gaurhari dass <gaurharidass@gmail.com
> > >wrote:
> >
> > > 13/03/26 12:46:14 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:16 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:16 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:17 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:17 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:18 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:18 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:19 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:19 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:20 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:20 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:21 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:21 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:22 INFO zookeeper.ClientCnxn: Opening socket connection
> to
> > > server localhost/127.0.0.1:2181. Will not attempt to authenticate
> using
> > > SASL (unknown error)
> > > 13/03/26 12:46:22 WARN zookeeper.ClientCnxn: Session 0x0 for server
> null,
> > > unexpected error, closing socket connection and attempting reconnect
> > > java.net.ConnectException: Connection refused
> > >     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> > >     at
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592)
> > >     at
> > >
> > >
> >
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
> > >     at
> > org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> > > 13/03/26 12:46:22 WARN zookeeper.RecoverableZooKeeper: Possibly
> transient
> > > ZooKeeper exception:
> > > org.apache.zookeeper.KeeperException$ConnectionLossException:
> > > KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
> > > 13/03/26 12:46:22 ERROR zookeeper.RecoverableZooKeeper: ZooKeeper
> exists
> > > failed after 3 retries
> > > 13/03/26 12:46:22 WARN zookeeper.ZKUtil: hconnection Unable to set
> > watcher
> > > on znode (/hbase/hbaseid)
> > > org.apache.zookeeper.KeeperException$ConnectionLossException:
> > > KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
> > >     at
> > org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
> > >     at
> > org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> > >     at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1041)
> > >     at
> > >
> > >
> >
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:172)
> > >     at
> > > org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:450)
> > >     at
> > >
> > >
> >
> org.apache.hadoop.hbase.zookeeper.ClusterId.readClusterIdZNode(ClusterId.java:61)
> > >     at
> > org.apache.hadoop.hbase.zookeeper.ClusterId.getId(ClusterId.java:50)
> > >     at
> > org.apache.hadoop.hbase.zookeeper.ClusterId.hasId(ClusterId.java:44)
> > >     at
> > >
> > >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.ensureZookeeperTrackers(HConnectionManager.java:615)
> > >     at
> > >
> > >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:684)
> > >     at
> > > org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:116)
> > >     at
> > >
> > >
> >
> org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:1750)
> > >     at org.samsung.cloud.dao.HB_Crud.<init>(HB_Crud.java:40)
> > >     at org.samsung.cloud.dao.HB_Read.<init>(HB_Read.java:49)
> > >     at org.samsung.cloud.rest.HB_Rest.getData(HB_Rest.java:46)
> > >     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > >
> >
>

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