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From Johnson Chen <dong...@gmail.com>
Subject Block not found
Date Thu, 02 Jul 2009 08:47:05 GMT
Hi ,

My hadoop program stop at 66% Reduce phrase

09/07/02 16:41:37 INFO mapred.JobClient:  map 0% reduce 0%
09/07/02 16:41:48 INFO mapred.JobClient:  map 50% reduce 0%
09/07/02 16:41:51 INFO mapred.JobClient:  map 100% reduce 0%
09/07/02 16:41:58 INFO mapred.JobClient:  map 100% reduce 66%

And I found it pop up a lot of error message in namenode log .

here is the error messages :

2009-07-02 16:43:44,461 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
commitBlockSynchronization(lastblock=blk_-7800669485846603924_144754,
newgenerationstamp=0, newlength=0, newtargets=[], closeFile=false,
deleteBlock=true)
2009-07-02 16:43:44,461 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 3 on 50040, call
commitBlockSynchronization(blk_-7800669485846603924_144754, 0, 0, false,
true, [Lorg.apache.hadoop.hdfs.protocol.DatanodeID;@2df2888) from
192.168.151.231:39976: error: java.io.IOException: Block
(=blk_-7800669485846603924_144754) not found
java.io.IOException: Block (=blk_-7800669485846603924_144754) not found
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.commitBlockSynchronization(FSNamesystem.java:1906)
        at
org.apache.hadoop.hdfs.server.namenode.NameNode.commitBlockSynchronization(NameNode.java:410)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:481)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:894)
2009-07-02 16:43:44,967 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
commitBlockSynchronization(lastblock=blk_-8293900342000823254_748370,
newgenerationstamp=0, newlength=0, newtargets=[], closeFile=false,
deleteBlock=true)
2009-07-02 16:43:44,967 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 0 on 50040, call
commitBlockSynchronization(blk_-8293900342000823254_748370, 0, 0, false,
true, [Lorg.apache.hadoop.hdfs.protocol.DatanodeID;@8ddfa31) from
192.168.151.232:45283: error: java.io.IOException: Block
(=blk_-8293900342000823254_748370) not found
java.io.IOException: Block (=blk_-8293900342000823254_748370) not found
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.commitBlockSynchronization(FSNamesystem.java:1906)
        at
org.apache.hadoop.hdfs.server.namenode.NameNode.commitBlockSynchronization(NameNode.java:410)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:481)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:894)


Can anyone help me ? Thanks.

-- 
Best wishes,
Johnson Chen

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