Hi I'm using hbase0.96. When I start hamster , it's ok. After a little while, I saw these in logs.
2014-06-13 18:10:15,073 WARN [RpcServer.handler=48,port=60000] ipc.RpcServer: RpcServer.respondercallId: 206739 service: RegionServerStatusService methodName: RegionServerReport size: 79.5 K connection: 132.228.248.64:44466: output error 2014-06-13 18:10:15,075 WARN [RpcServer.handler=48,port=60000] ipc.RpcServer: RpcServer.handler=48,port=60000: caught a ClosedChannelException, this means that the server was processing a request but the client went away. The error message was: null 2014-06-13 18:10:15,075 WARN [RpcServer.handler=23,port=60000] ipc.RpcServer: RpcServer.respondercallId: 205982 service: RegionServerStatusService methodName: RegionServerReport size: 79.0 K connection: 132.228.248.65:53771: output error 2014-06-13 18:10:15,076 WARN [RpcServer.handler=23,port=60000] ipc.RpcServer: RpcServer.handler=23,port=60000: caught a ClosedChannelException, this means that the server was processing a request but the client went away. The error message was: null 2014-06-13 18:10:21,692 WARN [RpcServer.handler=57,port=60000] ipc.RpcServer: RpcServer.respondercallId: 197757 service: RegionServerStatusService methodName: RegionServerReport size: 80.1 K connection: 132.228.248.71:57394: output error 2014-06-13 18:10:21,694 WARN [RpcServer.handler=57,port=60000] ipc.RpcServer: RpcServer.handler=57,port=60000: caught a ClosedChannelException, this means that the server was processing a request but the client went away. The error message was: null 2014-06-13 18:10:21,695 WARN [RpcServer.handler=59,port=60000] ipc.RpcServer: RpcServer.respondercallId: 206126 service: RegionServerStatusService methodName: RegionServerReport size: 79.8 K connection: 132.228.248.85:55994: output error 2014-06-13 18:10:21,696 WARN [RpcServer.handler=59,port=60000] ipc.RpcServer: RpcServer.handler=59,port=60000: caught a ClosedChannelException, this means that the server was processing a request but the client went away. The error message was: null I'm not sure, It seems like network problem. But ping is ok. Maybe This causes some master problem? Thanks.
