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From Torsten Curdt <tcu...@apache.org>
Subject is valid, and cannot be written to
Date Sun, 19 Aug 2007 22:47:46 GMT

I think might have come up before (but couldn't find something in the  
archives) and was meant to be not serious but we just had a node spit  
out 5000 errors per hour of these

2007-08-19T20:50:37+00:00 [192.168.165.136] [user.err]  
[hadoop.org.apache.hadoop.dfs.DataNode] DataXCeiver
2007-08-19T20:50:37+00:00 [192.168.165.136] [user.err]  
java.io.IOException: Block blk_-6080554387210237245 is valid, and  
cannot be written to.
2007-08-19T20:50:37+00:00 [192.168.165.136] [user.err] at  
org.apache.hadoop.dfs.FSDataset.writeToBlock(FSDataset.java:490)
2007-08-19T20:50:37+00:00 [192.168.165.136] [user.err] at  
org.apache.hadoop.dfs.DataNode$DataXceiver.writeBlock(DataNode.java:734)
2007-08-19T20:50:37+00:00 [192.168.165.136] [user.err] at  
org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:563)
2007-08-19T20:50:37+00:00 [192.168.165.136] [user.err] at  
java.lang.Thread.run(Thread.java:595)

which cannot be good. We are still running version 0.10.1 (I know -  
we need to upgrade!) ...but could someone please explain what this  
really means?

The node was still listed as in service and the fsck also confirmed  
the hdfs to be OK.

cheers
--
Torsten

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