Hey,
I'm seeing this message repeated over and over in my logs:
2008-12-05 19:20:00,534 INFO
org.apache.hadoop.hdfs.server.namenode.FSNamesystem:
commitBlockSynchronization(lastblock=blk_-4236881263392665762_88597,
newgenerationstamp=0, newlength=0, newtargets=[])
2008-12-05 19:20:00,534 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 29 on 9000, call
commitBlockSynchronization(blk_-4236881263392665762_88597, 0, 0,
false, true, [Lorg.apache.hadoop.hdfs.protocol.DatanodeID;@67537412)
from 172.16.1.184:57586: error: java.io.IOException: Block
(=blk_-4236881263392665762_88597) not found
java.io.IOException: Block (=blk_-4236881263392665762_88597) not found
at
org
.apache
.hadoop
.hdfs
.server
.namenode.FSNamesystem.commitBlockSynchronization(FSNamesystem.java:
1898)
at
org
.apache
.hadoop
.hdfs
.server.namenode.NameNode.commitBlockSynchronization(NameNode.java:410)
at sun.reflect.GeneratedMethodAccessor21.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$Server.call(RPC.java:452)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:892)
What can I do to debug?
Brian
