We've had jobs dying because of this, a quick workaround was in our case to decrease hbase.client.scanner.caching (to 100) and increase hbase.rpc.timeout and hbase.client.scanner.timeout.period (to 450000 and 300000).
On 25 March 2015 at 14:36, Talat Uyarer <ta...@uyarer.com> wrote: > Hi, > > I use HBase 0.98.6-cdh5.3.2. > > Only one regionserver has some warn logs. like this: > > 2:31:29.312 PMWARNorg.apache.hadoop.ipc.RpcServer > > RpcServer.respondercallId: 1456110 service: ClientService methodName: > Scan size: 24 connection: 192.168.0.10:47064: output error > > 2:31:29.313 PMWARNorg.apache.hadoop.ipc.RpcServer > > B.defaultRpcServer.handler=24,queue=0,port=60020: caught a > ClosedChannelException, this means that the server was processing a > request but the client went away. The error message was: null > > Talat > > 2015-03-25 15:52 GMT+02:00 Jean-Marc Spaggiari <jean-m...@spaggiari.org>: > > Also, which HBase version is it? > > > > 2015-03-25 9:47 GMT-04:00 ramkrishna vasudevan < > > ramkrishna.s.vasude...@gmail.com>: > > > >> Can you see if there is any exception in the Regionserver logs? > >> > >> On Wed, Mar 25, 2015 at 2:17 PM, Talat Uyarer <ta...@uyarer.com> wrote: > >> > >> > Hi all, > >> > > >> > I try to use Prefix Filter on hbase shell. It throws an exception. I > >> > do not understand its reason. Could you help me ? > >> > > >> > scan 'table1',{FILTER => "PrefixFilter('Row1')", LIMIT => 1} > >> > > >> > ROW > >> > COLUMN+CELL > >> > ERROR: > org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException: > >> > Expected nextCallSeq: 1 But the nextCallSeq got from client: 0; > >> > request=scanner_id: 154160 number_of_rows: 100 close_scanner: false > >> > next_call_seq: 0 > >> > at > >> > > >> > org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3198) > >> > at > >> > > >> > org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29925) > >> > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2031) > >> > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108) > >> > at > >> > > >> > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:116) > >> > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:96) > >> > at java.lang.Thread.run(Thread.java:745) > >> > > >> > Thanks > >> > -- > >> > Talat UYARER > >> > Websitesi: http://talat.uyarer.com > >> > Twitter: http://twitter.com/talatuyarer > >> > Linkedin: http://tr.linkedin.com/pub/talat-uyarer/10/142/304 > >> > > >> > > > > -- > Talat UYARER > Websitesi: http://talat.uyarer.com > Twitter: http://twitter.com/talatuyarer > Linkedin: http://tr.linkedin.com/pub/talat-uyarer/10/142/304 > -- *Mateusz Kaczynski* *Senior Developer* *mate...@arachnys.com <mate...@arachnys.com>* +44 7518970588 Arachnys Powering due diligence in emerging markets Read our blog here <http://blog.arachnys.com/> Follow us on twitter @arachnys Explore our data here <http://compass.arachnys.com/>