Cannot connect with hbase

Anonymous — Sat, 16 Nov 2024 12:03:00 GMT

Hello, i would like to use the ThbaseOutput.
However, i tried it with failure.. on two diferent hadoop systems.
bigdata is the hostname of my Hadoop ubuntu computer.. So Talend can clearly see the hostname but i don't know what to do.
When i run the Talend job, it displays this error:
13/04/22 17:49:39 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=10.85.5..:2181 sessionTimeout=180000 watcher=hconnection
13/04/22 17:49:40 INFO zookeeper.ClientCnxn: Opening socket connection to server /10.85.56..:2181
13/04/22 17:49:40 INFO zookeeper.RecoverableZooKeeper: The identifier of this process is 6116@FR-L27656
13/04/22 17:49:46 INFO zookeeper.ClientCnxn: Socket connection established to 10.85.../10.85..:2181, initiating session
13/04/22 17:49:46 INFO zookeeper.ClientCnxn: Session establishment complete on server 10.85.56.10/10.85.56.10:2181, sessionid = 0x13e1737a56b001f, negotiated timeout = 40000
13/04/22 17:49:47 INFO client.HConnectionManager$HConnectionImplementation: getMaster attempt 0 of 10 failed; retrying after sleep of 1000
java.net.UnknownHostException: unknown host: bigdata
at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.<init>(HBaseClient.java:227)
at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1016)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:878)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
at com.sun.proxy.$Proxy5.getProtocolVersion(Unknown Source)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:303)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:280)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:332)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:642)
at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:106)
at projectname.hbase_0_1.Hbase.tRowGenerator_1Process(Hbase.java:429)
at projectname.hbase_0_1.Hbase.runJobInTOS(Hbase.java:757)
at projectname.hbase_0_1.Hbase.main(Hbase.java:625)
13/04/22 17:49:48 INFO client.HConnectionManager$HConnectionImplementation: getMaster attempt 1 of 10 failed; retrying after sleep of 1000
java.net.UnknownHostException: unknown host: bigdata
at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.<init>(HBaseClient.java:227)
at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1016)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:878)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
at com.sun.proxy.$Proxy5.getProtocolVersion(Unknown Source)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:303)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:280)

and this is the Hbase log:
2013-04-22 17:49:34,932 INFO org.apache.zookeeper.server.NIOServerCnxnFactory: Accepted socket connection from /10.83...:50508
2013-04-22 17:49:34,933 INFO org.apache.zookeeper.server.ZooKeeperServer: Client attempting to establish new session at /10.83...:50508
2013-04-22 17:49:34,935 INFO org.apache.zookeeper.server.ZooKeeperServer: Established session 0x13e1737a56b0020 with negotiated timeout 40000 for client /10.83..:50508

Thank you in advance

Re: Cannot connect with hbase

Anonymous — Tue, 23 Apr 2013 03:15:18 GMT

Hi
Which version? Can you ping to the hostname or IP from a command prompt?
Shong

Re: Cannot connect with hbase

Anonymous — Tue, 23 Apr 2013 08:51:38 GMT

Hello, yes i can ping it, for example, i am able to use hiveserver and see the data with Qlikview.
Secondly, i don't understand why it can see the 'bigdata' hostname here:
java.net.UnknownHostException: unknown host: bigdata
that means i can see the server.
I tried it on Talend 5.2.1, 5.2.2 and 5.3rc2...

Re: Cannot connect with hbase

Anonymous — Mon, 08 Feb 2016 05:35:34 GMT

Hi,
For error : java.net.UnknownHostException: unknown host
add your destination server IP and name in hosts file located in C:\Windows\System32\drivers\etc of your system from which you are trying to access hadoop environment.
Thanks.!!

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