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Posted to user@hbase.apache.org by sunweiwei <su...@asiainfo-linkage.com> on 2014/06/13 15:26:33 UTC
master caught a ClosedChannelException
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.
Re: master caught a ClosedChannelException
Posted by Ted Yu <yu...@gmail.com>.
The exception means an attempt is made to invoke or complete an I/O
operation upon channel that is closed.
The ip's in log snippets were different. Have you checked server logs on
those machines around corresponding time to see if the region servers were
operating correctly ?
Cheers
On Fri, Jun 13, 2014 at 6:26 AM, sunweiwei <su...@asiainfo-linkage.com>
wrote:
> 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.
>
>