Sridhar Raman wrote:
I am trying to run K-Means using Hadoop. I first wanted to test it within a
single-node cluster. And this was the error I got. What could be the
problem?
$ bin/hadoop jar clustering.jar
com.company.analytics.clustering.mr.core.KMeansDriver
Iteration 0
org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/WORK/temp/hadoop/workspace/hadoop-user/mapred/system/job_200804291904_0001/job.jar
could only be replicated to 0 nodes, instead of 1
Check if your datanode is up or not.
Amar
at
org.apache.hadoop.dfs.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1003)
at org.apache.hadoop.dfs.NameNode.addBlock(NameNode.java:293)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:379)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:596)
at org.apache.hadoop.ipc.Client.call(Client.java:482)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:184)
at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
at org.apache.hadoop.dfs.$Proxy0.addBlock(Unknown Source)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:1554)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:1500)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.endBlock(DFSClient.java:1626)
at
org.apache.hadoop.dfs.DFSClient$DFSOutputStream.close(DFSClient.java:1733)
at
org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:49)
at
org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:64)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:55)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:83)
at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:140)
at
org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:827)
at
org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:815)
at
org.apache.hadoop.fs.FileSystem.copyFromLocalFile(FileSystem.java:796)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:493)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:753)
at
com.company.analytics.clustering.mr.core.KMeansDriver.runIteration(KMeansDriver.java:136)
at
com.company.analytics.clustering.mr.core.KMeansDriver.runJob(KMeansDriver.java:88)
at
com.company.analytics.clustering.mr.core.KMeansDriver.main(KMeansDriver.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
