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
