Hi Ted, Thanks for the response.
Hbase version - *0.90.5* * * Here is the RS log - ########################################## 2013-02-08 23:15:23,457 WARN org.apache.hadoop.ipc.HBaseServer: IPC Server Responder, call multi(org.apache.hadoop.hbase.client.MultiAction@80ecfd) from 117.196.234.171:60278: output error 2013-02-08 23:15:23,457 WARN org.apache.hadoop.ipc.HBaseServer: IPC Server handler 27 on 60020 caught: java.nio.channels.ClosedChannelException at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:249) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:440) at org.apache.hadoop.hbase.ipc.HBaseServer.channelIO(HBaseServer.java:1389) at org.apache.hadoop.hbase.ipc.HBaseServer.channelWrite(HBaseServer.java:1341) at org.apache.hadoop.hbase.ipc.HBaseServer$Responder.processResponse(HBaseServer.java:727) at org.apache.hadoop.hbase.ipc.HBaseServer$Responder.doRespond(HBaseServer.java:792) at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1083) 2013-02-08 23:17:20,153 WARN org.apache.hadoop.ipc.HBaseServer: IPC Server Responder, call multi(org.apache.hadoop.hbase.client.MultiAction@13dead6) from 117.196.234.171:60292: output error 2013-02-08 23:17:20,153 WARN org.apache.hadoop.ipc.HBaseServer: IPC Server handler 28 on 60020 caught: java.nio.channels.ClosedChannelException at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:249) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:440) at org.apache.hadoop.hbase.ipc.HBaseServer.channelIO(HBaseServer.java:1389) at org.apache.hadoop.hbase.ipc.HBaseServer.channelWrite(HBaseServer.java:1341) at org.apache.hadoop.hbase.ipc.HBaseServer$Responder.processResponse(HBaseServer.java:727) at org.apache.hadoop.hbase.ipc.HBaseServer$Responder.doRespond(HBaseServer.java:792) at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1083) 2013-02-08 23:18:23,343 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=956.76 KB, free=193.95 MB, max=194.89 MB, blocks=10, accesses=837, hits=111, hitRatio=13.26%%, cachingAccesses=121, cachingHits=111, cachingHitsRatio=91.73%%, evictions=0, evicted=0, evictedPerRun=NaN 2013-02-08 23:19:21,074 WARN org.apache.hadoop.ipc.HBaseServer: IPC Server Responder, call multi(org.apache.hadoop.hbase.client.MultiAction@965fce) from 117.196.234.171:60293: output error 2013-02-08 23:19:21,074 WARN org.apache.hadoop.ipc.HBaseServer: IPC Server handler 29 on 60020 caught: java.nio.channels.ClosedChannelException at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:249) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:440) at org.apache.hadoop.hbase.ipc.HBaseServer.channelIO(HBaseServer.java:1389) at org.apache.hadoop.hbase.ipc.HBaseServer.channelWrite(HBaseServer.java:1341) at org.apache.hadoop.hbase.ipc.HBaseServer$Responder.processResponse(HBaseServer.java:727) at org.apache.hadoop.hbase.ipc.HBaseServer$Responder.doRespond(HBaseServer.java:792) at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1083) ########################################################### Thanks, Vidosh On Fri, Feb 8, 2013 at 10:58 PM, Ted Yu <[email protected]> wrote: > Can you tell us the version of HBase you're using ? > > If you can publish region server log around time of such error, that would > help too. > > Please use pastebin for log snippet. > > Thanks > > On Fri, Feb 8, 2013 at 12:57 AM, Vidosh Sahu <[email protected]> > wrote: > > > Hi, > > > > I have a pseudo-distributed setup of hbase/hadoop. I have 2 tables in > > hbase. > > > > I have a scheduler which runs at some frequency. Scheduler kicks three > > different mapper 1 by 1 (one the successful completion of the first one, > > the next one starts). > > > > When I ran it on lesser data it works fine, but in case of huge data it > > throws the following exception - > > > > org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to > contact > > region server null for region , row '*********************', but failed > > after 10 attempts. > > Exceptions: > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > java.io.IOException: > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@81f25closed > > > > at > > > > > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getRegionServerWithRetries(HConnectionManager.java:1017) > > at org.apache.hadoop.hbase.client.HTable.get(HTable.java:549) > > > > Thanks, > > Vidosh > > > -- *Warm Regards Vidosh Sahu | Technical Team Lead | Girnar Software Pvt Ltd |* *207 | Adarsh Nagar | Near Sardar Bhag Singh Ka Chouraha | Jaipur| 302004 | India | +91 141 422 4400 office | +91 9950751516 mobile | vidoshsahu skype | * www.girnarSoft.com <http://www.girnarsoft.com/> www.cardekho.com *Proud owners of www.CarDekho.com <http://www.cardekho.com/>, India's #1 auto portal!* * * * Confidentiality Notice & Legal Disclaimer: This E-Mail Message (including attachments) may contain Confidential and/or legally privileged Information and is meant for the intended recipient(s) only. 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