I am trying to insert the data using hector client. Using only one host in the pool ie. localhost. like as follows
            CassandraClientPool pool = CassandraClientPoolFactory.INSTANCE.get();
            client = pool.borrowClient("localhost", 9160);
            global = client.getKeyspace(keyspace, ConsistencyLevel.ONE);


After some(5-6) iterations of insertions of data (every 5 min insertion of about 40 MB of data), the program starts emitting this

10/06/27 09:55:28 WARN service.FailoverOperator: Got a TTransportException from localhost. Num of retries: 1
10/06/27 09:55:28 INFO service.FailoverOperator: Skipping to next host. Current host is: localhost
10/06/27 09:55:28 INFO service.FailoverOperator: Skipped host. New host is: localhost

I couldnt understand the reason for this, when im using only device in the pool. If i remove the ConsistencyLevel.ONE, then the error starts from the first iteration itself.

The same program through Thrift runs without any problems. Actually, i just modified the thrift program and replaced the calls to thrift api to corresponding Hector calls.

Thanks
Atul