Thanks Jason! I gave your suggestion to my cluster administrator and now it is working. Following was his reply to me:
"But /hadoop/tmp is not /scratch and the only thing that I clean is /scratch. It looks like the disks in the job tracker machine died. I swapped the disks from another node and rebuilt it. As far as I can tell it is working." Thanks Again! jason hadoop wrote: > > The directory specified by the configuration parameter mapred.system.dir, > defaulting to /tmp/hadoop/mapred/system, doesn't exist. > > Most likely your tmp cleaner task has removed it, and I am guessing it is > only created at cluster start time. > > On Mon, Jun 22, 2009 at 6:19 PM, akhil1988 <akhilan...@gmail.com> wrote: > >> >> Hi All! >> >> I have been running Hadoop jobs through my user account on a cluster, for >> a >> while now. But now I am getting this strange exception when I try to >> execute >> a job. If anyone knows, please let me know why this is happening. >> >> [akhil1...@altocumulus WordCount]$ hadoop jar wordcount_classes_dir.jar >> org.uiuc.upcrc.extClasses.WordCount /home/akhil1988/input >> /home/akhil1988/output >> JO >> 09/06/22 19:19:01 WARN mapred.JobClient: Use GenericOptionsParser for >> parsing the arguments. Applications should implement Tool for the same. >> org.apache.hadoop.ipc.RemoteException: java.io.FileNotFoundException: >> /hadoop/tmp/hadoop/mapred/local/jobTracker/job_200906111015_0167.xml >> (Read-only file system) >> at java.io.FileOutputStream.open(Native Method) >> at java.io.FileOutputStream.<init>(FileOutputStream.java:179) >> at >> >> org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.<init>(RawLocalFileSystem.java:187) >> at >> >> org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.<init>(RawLocalFileSystem.java:183) >> at >> org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:241) >> at >> >> org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer.<init>(ChecksumFileSystem.java:327) >> at >> org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:360) >> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:487) >> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:468) >> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:375) >> at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:208) >> at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:142) >> at >> org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:1214) >> at >> org.apache.hadoop.fs.FileSystem.copyToLocalFile(FileSystem.java:1195) >> at >> org.apache.hadoop.mapred.JobInProgress.<init>(JobInProgress.java:212) >> at >> org.apache.hadoop.mapred.JobTracker.submitJob(JobTracker.java:2230) >> at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) >> at >> >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:452) >> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:892) >> >> at org.apache.hadoop.ipc.Client.call(Client.java:696) >> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216) >> at org.apache.hadoop.mapred.$Proxy1.submitJob(Unknown Source) >> at >> org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:828) >> at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1127) >> at org.uiuc.upcrc.extClasses.WordCount.main(WordCount.java:70) >> 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:597) >> at org.apache.hadoop.util.RunJar.main(RunJar.java:165) >> at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54) >> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) >> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) >> at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68) >> >> >> Thanks, >> Akhil >> >> -- >> View this message in context: >> http://www.nabble.com/Strange-Exeception-tp24158395p24158395.html >> Sent from the Hadoop core-user mailing list archive at Nabble.com. >> >> > > > -- > Pro Hadoop, a book to guide you from beginner to hadoop mastery, > http://www.amazon.com/dp/1430219424?tag=jewlerymall > www.prohadoopbook.com a community for Hadoop Professionals > > -- View this message in context: http://www.nabble.com/Strange-Exeception-tp24158395p24177363.html Sent from the Hadoop core-user mailing list archive at Nabble.com.
