Hama:
Sorry to bother you.
I have run the program,kmeans,which is the example program of Hama.But
I have encountered some problems.Error occured while "reader = new
SequenceFile.Reader(fs, centroids, peer.getConfiguration());" is running.The
error information is as follows:
13/12/29 19:02:24 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)
13/12/29 19:02:24 ERROR bsp.LocalBSPRunner: Exception during BSP execution!
java.lang.RuntimeException: java.io.EOFException
at org.apache.hama.ml.kmeans.KMeansBSP.setup(KMeansBSP.java:98)
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$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:197)
at java.io.DataInputStream.readFully(DataInputStream.java:169)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1450)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1428)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1417)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1412)
at org.apache.hama.ml.kmeans.KMeansBSP.setup(KMeansBSP.java:90)
... 9 more
13/12/29 19:02:25 ERROR bsp.LocalBSPRunner: Exception during BSP execution!
java.util.concurrent.ExecutionException: java.lang.RuntimeException:
java.io.EOFException
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:188)
at
org.apache.hama.bsp.LocalBSPRunner$ThreadObserver.run(LocalBSPRunner.java:314)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.RuntimeException: java.io.EOFException
at org.apache.hama.ml.kmeans.KMeansBSP.setup(KMeansBSP.java:98)
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$Worker.run(ThreadPoolExecutor.java:615)
... 1 more
Caused by: java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:197)
at java.io.DataInputStream.readFully(DataInputStream.java:169)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1450)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1428)
at
org.apache.hadoop.io.SequenceFile$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)
... 9 more
13/12/29 19:02:26 INFO bsp.BSPJobClient: Job failed.
What's more,attach is the Kmeans program.
If you can take time to reply me, I will be very grateful to you.
Best wishes.
Ping Liu
2013-12-29
