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Posted to user@hbase.apache.org by Sebastian Bauer <ad...@ugame.net.pl> on 2011/11/17 11:24:07 UTC

Connection to two difference versions

Hi. Is there any way to connect to two difference hbase versions?
I try copytable mapreduce and i got:

11/11/17 11:19:28 WARN 
client.HConnectionManager$HConnectionImplementation: RemoteException 
connecting to RS
org.apache.hadoop.ipc.RemoteException: 
org.apache.hadoop.io.VersionMismatchException
         at 
org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:881)
         at 
org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:149)
         at $Proxy7.getProtocolVersion(Unknown Source)
         at 
org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:182)
         at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:295)
         at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:272)
         at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:324)
         at 
org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:228)
         at 
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1197)

-- 

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

Re: Connection to two difference versions

Posted by Michel Segel <mi...@hotmail.com>.
Short answer no, not from java. You have a class loader problem which may make it difficult to instantiate a connection and HBase objects in the second instance.

Longer answer... Let me think about it... 

Of course having said that... I'm sure someone already has done this...

Sent from a remote device. Please excuse any typos...

Mike Segel

On Nov 17, 2011, at 4:24 AM, Sebastian Bauer <ad...@ugame.net.pl> wrote:

> Hi. Is there any way to connect to two difference hbase versions?
> I try copytable mapreduce and i got:
> 
> 11/11/17 11:19:28 WARN client.HConnectionManager$HConnectionImplementation: RemoteException connecting to RS
> org.apache.hadoop.ipc.RemoteException: org.apache.hadoop.io.VersionMismatchException
>        at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:881)
>        at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:149)
>        at $Proxy7.getProtocolVersion(Unknown Source)
>        at org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:182)
>        at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:295)
>        at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:272)
>        at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:324)
>        at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:228)
>        at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1197)
> 
> -- 
> 
> Pozdrawiam
> Sebastian Bauer
> -----------------------------------------------------
> http://tikecik.pl
> 
>