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From ch huang <justlo...@gmail.com>
Subject scan very slow in hbase
Date Tue, 06 Aug 2013 07:39:26 GMT
my workmate  tell me hbase is very slow for scan something ,i check the
region server find the following information,anyone can help?


13/08/06 15:30:34 WARN ipc.HBaseServer: IPC Server listener on 60020:
readAndProcess threw exception java.io.IOException: Connection reset by
peer. Count of bytes read: 0
java.io.IOException: Connection reset by peer
        at sun.nio.ch.FileDispatcher.read0(Native Method)
        at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
        at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:198)
        at sun.nio.ch.IOUtil.read(IOUtil.java:171)
        at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:245)
        at
org.apache.hadoop.hbase.ipc.HBaseServer.channelRead(HBaseServer.java:1796)
        at
org.apache.hadoop.hbase.ipc.HBaseServer$Connection.readAndProcess(HBaseServer.java:1179)
        at
org.apache.hadoop.hbase.ipc.HBaseServer$Listener.doRead(HBaseServer.java:748)
        at
org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.doRunLoop(HBaseServer.java:539)
        at
org.apache.hadoop.hbase.ipc.HBaseServer$Listener$Reader.run(HBaseServer.java:514)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
13/08/06 15:30:34 ERROR regionserver.HRegionServer:
org.apache.hadoop.hbase.ipc.CallerDisconnectedException: Aborting call
next(1916648340315433886, 1), rpc version=1, client version=29,
methodsFingerPrint=-1368823753 from 192.168.2.209:1150 after 8504 ms, since
caller disconnected
        at
org.apache.hadoop.hbase.ipc.HBaseServer$Call.throwExceptionIfCallerDisconnected(HBaseServer.java:436)
        at
org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:3856)
        at
org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3776)
        at
org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3768)
        at
org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:2513)
        at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:320)
        at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1426)

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