Is HADOOP_HEAPSIZE set for all Hadoop related Java processes, or just one Java process?
Regards, Xiaobo Gu On Thu, Aug 11, 2011 at 1:07 PM, Lance Norskog <goks...@gmail.com> wrote: > If the server is dedicated to this job, you might as well give it > 10-15g. After that shakes out, try changing the number of mappers & > reducers. > > On Tue, Aug 9, 2011 at 2:06 AM, Xiaobo Gu <guxiaobo1...@gmail.com> wrote: >> Hi Adi, >> >> Thanks for your response, on an SMP server with 32G RAM and 8 Cores, >> what's your suggestion for setting HADOOP_HEAPSIZE, the server will be >> dedicated for a Single Node Hadoop with 1 data node instance, and the >> it will run 4 mapper and reducer tasks . >> >> Regards, >> >> Xiaobo Gu >> >> >> On Sun, Aug 7, 2011 at 11:35 PM, Adi <adi.pan...@gmail.com> wrote: >>>>>Caused by: java.io.IOException: error=12, Not enough space >>> >>> You either do not have enough memory allocated to your hadoop daemons(via >>> HADOOP_HEAPSIZE) or swap space. >>> >>> -Adi >>> >>> On Sun, Aug 7, 2011 at 5:48 AM, Xiaobo Gu <guxiaobo1...@gmail.com> wrote: >>> >>>> Hi, >>>> >>>> I am trying to write a map-reduce job to convert csv files to >>>> sequencefiles, but the job fails with the following error: >>>> java.lang.RuntimeException: Error while running command to get file >>>> permissions : java.io.IOException: Cannot run program "/bin/ls": >>>> error=12, Not enough space >>>> at java.lang.ProcessBuilder.start(ProcessBuilder.java:460) >>>> at org.apache.hadoop.util.Shell.runCommand(Shell.java:200) >>>> at org.apache.hadoop.util.Shell.run(Shell.java:182) >>>> at >>>> org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:375) >>>> at org.apache.hadoop.util.Shell.execCommand(Shell.java:461) >>>> at org.apache.hadoop.util.Shell.execCommand(Shell.java:444) >>>> at >>>> org.apache.hadoop.fs.RawLocalFileSystem.execCommand(RawLocalFileSystem.java:540) >>>> at >>>> org.apache.hadoop.fs.RawLocalFileSystem.access$100(RawLocalFileSystem.java:37) >>>> at >>>> org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:417) >>>> at >>>> org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.getOwner(RawLocalFileSystem.java:400) >>>> at >>>> org.apache.hadoop.mapred.TaskLog.obtainLogDirOwner(TaskLog.java:176) >>>> at >>>> org.apache.hadoop.mapred.TaskLogsTruncater.truncateLogs(TaskLogsTruncater.java:124) >>>> at org.apache.hadoop.mapred.Child$4.run(Child.java:264) >>>> at java.security.AccessController.doPrivileged(Native Method) >>>> at javax.security.auth.Subject.doAs(Subject.java:396) >>>> at >>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) >>>> at org.apache.hadoop.mapred.Child.main(Child.java:253) >>>> Caused by: java.io.IOException: error=12, Not enough space >>>> at java.lang.UNIXProcess.forkAndExec(Native Method) >>>> at java.lang.UNIXProcess.<init>(UNIXProcess.java:53) >>>> at java.lang.ProcessImpl.start(ProcessImpl.java:65) >>>> at java.lang.ProcessBuilder.start(ProcessBuilder.java:453) >>>> ... 16 more >>>> >>>> at >>>> org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:442) >>>> at >>>> org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.getOwner(RawLocalFileSystem.java:400) >>>> at >>>> org.apache.hadoop.mapred.TaskLog.obtainLogDirOwner(TaskLog.java:176) >>>> at >>>> org.apache.hadoop.mapred.TaskLogsTruncater.truncateLogs(TaskLogsTruncater.java:124) >>>> at org.apache.hadoop.mapred.Child$4.run(Child.java:264) >>>> at java.security.AccessController.doPrivileged(Native Method) >>>> at javax.security.auth.Subject.doAs(Subject.java:396) >>>> at >>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) >>>> at org.apache.hadoop.mapred.Child.main(Child.java:253) >>>> >>> >> > > > > -- > Lance Norskog > goks...@gmail.com >
