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From "casablinca126.com" <casabli...@126.com>
Subject Re: Re: failover exception with hector
Date Wed, 17 Mar 2010 09:14:44 GMT
Ran,
I ran the nodeprobe tool , and got the correct ring infomation.
Address       Status     Load          Range                                      Ring
                                       85080781597816482766914734169501403890     
192.168.13.40 Up         38.18 GB      26049930823101849079767692175708865961     |<--|
192.168.13.39 Up         38.18 GB      85080781597816482766914734169501403890     |-->|

Thanks!
cheers,


2010-03-17 



casablinca126.com 



发件人: Ran Tavory 
发送时间: 2010-03-17  11:31:41 
收件人: user@cassandra.apache.org 
抄送: 
主题: Re: failover exception with hector 
 
I seems the host you were connected to was unable to locate the other host in the ring. That's
probably a configuration error.
Can you run nodeprobe -host1 ring
where host1 is the host hector was connected to initially?


If not that, can you check with jconsole how hector sees the ring: connect to the java client
running hector and check me.prettyprint.hector if the list of known hosts is consistent with
your setup?



2010/3/16 casablinca126.com <casablinca@126.com>

 hi folks,
       Just switched from C++ interface to hector, found an exception when testing with a
2-node cluster:

                       Exception in thread "main" org.apache.thrift.TException: Unable to
failover to next host
           at me.prettyprint.cassandra.service.KeyspaceImpl.skipToNextHost(KeyspaceImpl.java:598)
           at me.prettyprint.cassandra.service.KeyspaceImpl.operateWithFailover(KeyspaceImpl.java:668)
           at me.prettyprint.cassandra.service.KeyspaceImpl.insert(KeyspaceImpl.java:270)
           at me.prettyprint.cassandra.service.ExampleClient.insertFromDB(ExampleClient.java:108)
           at me.prettyprint.cassandra.service.ExampleClient.main(ExampleClient.java:45)

       I was doing a lot of insertion. Probably inserting to 1 node wsa failed, and hector
failed to find the other node.
       I'm using cassandra-0.5.0. In conf/storage-conf.xml, the ListenAddress is configured
as the IP and ThriftAddress
       is left blank.

       Any ideas?

cheers,
Cao Jiguang


--------------
casablinca126.com
2010-03-17
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