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From "步青云" <mailliup...@qq.com>
Subject fs.FSInputChecker: Problem opening checksum file: file:/home/hadoop/file/kmeans/center/cen.seq
Date Thu, 09 Jan 2014 09:13:22 GMT
Hi,
      I'm trying to run the Kmeans example of Hama.The args is "file:///home/hadoop/file/kmeans/kmeansinput
file:///home/hadoop/file/kmeansoutput 5 5 -g 5 5". What's more , the attach is "kmeansinput.txt".But
I got the problem as follows:


14/01/09 16:38:52 WARN fs.FSInputChecker: Problem opening checksum file: file:/home/hadoop/file/kmeans/center/cen.seq.
 Ignoring exception: java.io.EOFException
	at java.io.DataInputStream.readFully(DataInputStream.java:197)
	at java.io.DataInputStream.readFully(DataInputStream.java:169)
	at org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.<init>(ChecksumFileSystem.java:134)
	at org.apache.hadoop.fs.ChecksumFileSystem.open(ChecksumFileSystem.java:283)
	at org.apache.hadoop.io.SequenceFile$Reader.openFile(SequenceFile.java:1437)
	at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1424)
	at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1417)
	at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1412)
	at org.apache.hama.ml.kmeans.KMeansBSP.setup(KMeansBSP.java:90)
	at org.apache.hama.bsp.LocalBSPRunner$BSPRunner.run(LocalBSPRunner.java:255)
	at org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:286)
	at org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:1)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)



       And "cen.seq" is empty.There might be old checksum files in your HDFS or local filesystem.But
I don't how to clean them up.
       Could you help me to solve this problem?
       Thanks.
       Best wishes.
Ping Liu
01-09,2014
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