Maybe you do not have enough available memory on master? What is the output of "*free*" on both nodes? -- Alex K
On Mon, Jul 12, 2010 at 2:08 PM, Shuja Rehman <shujamug...@gmail.com> wrote: > Hi > I have added following line to my master node mapred-site.xml file > > <property> > <name>mapred.child.ulimit</name> > <value>3145728</value> > </property> > > and run the job again, and wow..., the jobs get completed in 4th attempt. I > checked the at 50030. Hadoop runs job 3 times on master server and it fails > but when it run on 2nd node, it succeeded and produce the desired result. > Why it failed on master? > Thanks > Shuja > > > On Tue, Jul 13, 2010 at 1:34 AM, Alex Kozlov <ale...@cloudera.com> wrote: > > > Hmm. It means your options are not propagated to the nodes. Can you put > * > > mapred.child.ulimit* in the mapred-siet.xml and restart the tasktrackers? > > I > > was under impression that the below should be enough though. Glad you > got > > it working in local mode. -- Alex K > > > > On Mon, Jul 12, 2010 at 1:24 PM, Shuja Rehman <shujamug...@gmail.com> > > wrote: > > > > > Hi Alex, I am using putty to connect to servers. and this is almost my > > > maximum screen output which i sent. putty is not allowed me to increase > > the > > > size of terminal. is there any other way that i get the complete output > > of > > > ps-aef? > > > > > > Now i run the following command and thnx God, it did not fails and > > produce > > > the desired output. > > > > > > hadoop jar > > > /usr/lib/hadoop-0.20/contrib/streaming/hadoop-streaming-0.20.2+320.jar > \ > > > -D mapred.child.java.opts=-Xmx1024m \ > > > -D mapred.child.ulimit=3145728 \ > > > -jt local \ > > > -inputformat StreamInputFormat \ > > > -inputreader "StreamXmlRecordReader,begin=<mdc xmlns:HTML=\" > > > http://www.w3.org/TR/REC-xml\ <http://www.w3.org/TR/REC-xml%5C> < > http://www.w3.org/TR/REC-xml%5C> < > > http://www.w3.org/TR/REC-xml%5C>">,end=</mdc>" > > > \ > > > -input > > > > > > > > > /user/root/RNCDATA/MDFDORKUCRAR02/A20100531.0000-0700-0015-0700_RNCCN-MDFDORKUCRAR02 > > > \ > > > -jobconf mapred.map.tasks=1 \ > > > -jobconf mapred.reduce.tasks=0 \ > > > -output RNC32 \ > > > -mapper /home/ftpuser1/Nodemapper5.groovy \ > > > -reducer org.apache.hadoop.mapred.lib.IdentityReducer \ > > > -file /home/ftpuser1/Nodemapper5.groovy > > > > > > > > > but when i omit the -jt local, it produces the same error. > > > Thanks Alex for helping > > > Regards > > > Shuja > > > > > > On Tue, Jul 13, 2010 at 1:01 AM, Alex Kozlov <ale...@cloudera.com> > > wrote: > > > > > > > Hi Shuja, > > > > > > > > Java listens to the last xmx, so if you have multiple "-Xmx ..." on > the > > > > command line, the last is valid. Unfortunately you have truncated > > > command > > > > lines. Can you show us the full command line, particularly for the > > > process > > > > 26162? This seems to be causing problems. > > > > > > > > If you are running your cluster on 2 nodes, it may be that the task > was > > > > scheduled on the second node. Did you run "ps -aef" on the second > node > > > as > > > > well? You can see the task assignment in the JT web-UI ( > > > > http://jt-name:50030, drill down to tasks). > > > > > > > > I suggest you first debug your program in the local mode first, > however > > > > (use > > > > "*-jt local*" option). Did you try the "*-D > > > mapred.child.ulimit=3145728*" > > > > option? I do not see it on the command line. > > > > > > > > Alex K > > > > > > > > On Mon, Jul 12, 2010 at 12:20 PM, Shuja Rehman < > shujamug...@gmail.com > > > > >wrote: > > > > > > > > > Hi Alex > > > > > > > > > > I have tried with using quotes and also with -jt local but same > heap > > > > > error. > > > > > and here is the output of ps -aef > > > > > > > > > > UID PID PPID C STIME TTY TIME CMD > > > > > root 1 0 0 04:37 ? 00:00:00 init [3] > > > > > root 2 1 0 04:37 ? 00:00:00 [migration/0] > > > > > root 3 1 0 04:37 ? 00:00:00 [ksoftirqd/0] > > > > > root 4 1 0 04:37 ? 00:00:00 [watchdog/0] > > > > > root 5 1 0 04:37 ? 00:00:00 [events/0] > > > > > root 6 1 0 04:37 ? 00:00:00 [khelper] > > > > > root 7 1 0 04:37 ? 00:00:00 [kthread] > > > > > root 9 7 0 04:37 ? 00:00:00 [xenwatch] > > > > > root 10 7 0 04:37 ? 00:00:00 [xenbus] > > > > > root 17 7 0 04:37 ? 00:00:00 [kblockd/0] > > > > > root 18 7 0 04:37 ? 00:00:00 [cqueue/0] > > > > > root 22 7 0 04:37 ? 00:00:00 [khubd] > > > > > root 24 7 0 04:37 ? 00:00:00 [kseriod] > > > > > root 84 7 0 04:37 ? 00:00:00 [khungtaskd] > > > > > root 85 7 0 04:37 ? 00:00:00 [pdflush] > > > > > root 86 7 0 04:37 ? 00:00:00 [pdflush] > > > > > root 87 7 0 04:37 ? 00:00:00 [kswapd0] > > > > > root 88 7 0 04:37 ? 00:00:00 [aio/0] > > > > > root 229 7 0 04:37 ? 00:00:00 [kpsmoused] > > > > > root 248 7 0 04:37 ? 00:00:00 [kstriped] > > > > > root 257 7 0 04:37 ? 00:00:00 [kjournald] > > > > > root 279 7 0 04:37 ? 00:00:00 [kauditd] > > > > > root 307 1 0 04:37 ? 00:00:00 /sbin/udevd -d > > > > > root 634 7 0 04:37 ? 00:00:00 [kmpathd/0] > > > > > root 635 7 0 04:37 ? 00:00:00 [kmpath_handlerd] > > > > > root 660 7 0 04:37 ? 00:00:00 [kjournald] > > > > > root 662 7 0 04:37 ? 00:00:00 [kjournald] > > > > > root 1032 1 0 04:38 ? 00:00:00 auditd > > > > > root 1034 1032 0 04:38 ? 00:00:00 /sbin/audispd > > > > > root 1049 1 0 04:38 ? 00:00:00 syslogd -m 0 > > > > > root 1052 1 0 04:38 ? 00:00:00 klogd -x > > > > > root 1090 7 0 04:38 ? 00:00:00 [rpciod/0] > > > > > root 1158 1 0 04:38 ? 00:00:00 rpc.idmapd > > > > > dbus 1171 1 0 04:38 ? 00:00:00 dbus-daemon > --system > > > > > root 1184 1 0 04:38 ? 00:00:00 /usr/sbin/hcid > > > > > root 1190 1 0 04:38 ? 00:00:00 /usr/sbin/sdpd > > > > > root 1210 1 0 04:38 ? 00:00:00 [krfcommd] > > > > > root 1244 1 0 04:38 ? 00:00:00 pcscd > > > > > root 1264 1 0 04:38 ? 00:00:00 /usr/bin/hidd > > --server > > > > > root 1295 1 0 04:38 ? 00:00:00 automount > > > > > root 1314 1 0 04:38 ? 00:00:00 /usr/sbin/sshd > > > > > root 1326 1 0 04:38 ? 00:00:00 xinetd -stayalive > > > > -pidfile > > > > > /var/run/xinetd.pid > > > > > root 1337 1 0 04:38 ? 00:00:00 /usr/sbin/vsftpd > > > > > /etc/vsftpd/vsftpd.conf > > > > > root 1354 1 0 04:38 ? 00:00:00 sendmail: accepting > > > > > connections > > > > > smmsp 1362 1 0 04:38 ? 00:00:00 sendmail: Queue > > > run...@01 > > > > > :00:00 > > > > > for /var/spool/clientmqueue > > > > > root 1379 1 0 04:38 ? 00:00:00 gpm -m > > /dev/input/mice > > > -t > > > > > exps2 > > > > > root 1410 1 0 04:38 ? 00:00:00 crond > > > > > xfs 1450 1 0 04:38 ? 00:00:00 xfs -droppriv > -daemon > > > > > root 1482 1 0 04:38 ? 00:00:00 /usr/sbin/atd > > > > > 68 1508 1 0 04:38 ? 00:00:00 hald > > > > > root 1509 1508 0 04:38 ? 00:00:00 hald-runner > > > > > root 1533 1 0 04:38 ? 00:00:00 /usr/sbin/smartd -q > > > never > > > > > root 1536 1 0 04:38 xvc0 00:00:00 /sbin/agetty xvc0 > > 9600 > > > > > vt100-nav > > > > > root 1537 1 0 04:38 ? 00:00:00 /usr/bin/python -tt > > > > > /usr/sbin/yum-updatesd > > > > > root 1539 1 0 04:38 ? 00:00:00 > > /usr/libexec/gam_server > > > > > root 21022 1314 0 11:27 ? 00:00:00 sshd: r...@pts/0 > > > > > root 21024 21022 0 11:27 pts/0 00:00:00 -bash > > > > > root 21103 1314 0 11:28 ? 00:00:00 sshd: r...@pts/1 > > > > > root 21105 21103 0 11:28 pts/1 00:00:00 -bash > > > > > root 21992 1314 0 11:47 ? 00:00:00 sshd: r...@pts/2 > > > > > root 21994 21992 0 11:47 pts/2 00:00:00 -bash > > > > > root 22433 1314 0 11:49 ? 00:00:00 sshd: r...@pts/3 > > > > > root 22437 22433 0 11:49 pts/3 00:00:00 -bash > > > > > hadoop 24808 1 0 12:01 ? 00:00:02 > > > /usr/jdk1.6.0_03/bin/java > > > > > -Xmx2001m -Dcom.sun.management.jmxremote > > -Dcom.sun.management.jmxremote > > > > > -Dhadoop.lo > > > > > hadoop 24893 1 0 12:01 ? 00:00:01 > > > /usr/jdk1.6.0_03/bin/java > > > > > -Xmx2001m -Dcom.sun.management.jmxremote > > -Dcom.sun.management.jmxremote > > > > > -Dhadoop.lo > > > > > hadoop 24988 1 0 12:01 ? 00:00:01 > > > /usr/jdk1.6.0_03/bin/java > > > > > -Xmx2001m -Dcom.sun.management.jmxremote > > -Dcom.sun.management.jmxremote > > > > > -Dhadoop.lo > > > > > hadoop 25085 1 0 12:01 ? 00:00:00 > > > /usr/jdk1.6.0_03/bin/java > > > > > -Xmx2001m -Dcom.sun.management.jmxremote > > -Dcom.sun.management.jmxremote > > > > > -Dhadoop.lo > > > > > hadoop 25175 1 0 12:01 ? 00:00:01 > > > /usr/jdk1.6.0_03/bin/java > > > > > -Xmx2001m -Dhadoop.log.dir=/usr/lib/hadoop-0.20/bin/../logs > > > > > -Dhadoop.log.file=hadoo > > > > > root 25925 21994 1 12:06 pts/2 00:00:00 > > > /usr/jdk1.6.0_03/bin/java > > > > > -Xmx2001m -Dhadoop.log.dir=/usr/lib/hadoop-0.20/logs > > > > > -Dhadoop.log.file=hadoop.log - > > > > > hadoop 26120 25175 14 12:06 ? 00:00:01 > > > > > /usr/jdk1.6.0_03/jre/bin/java > > > > > > > > > > > > > > > > > > > > -Djava.library.path=/usr/jdk1.6.0_03/jre/lib/i386/client:/usr/jdk1.6.0_03/jre/l > > > > > hadoop 26162 26120 89 12:06 ? 00:00:05 > > > /usr/jdk1.6.0_03/bin/java > > > > > -classpath /usr/local/groovy/lib/groovy-1.7.3.jar > > > > > -Dscript.name=/usr/local/groovy/b > > > > > root 26185 22437 0 12:07 pts/3 00:00:00 ps -aef > > > > > > > > > > > > > > > *The command which i am executing is * > > > > > > > > > > > > > > > hadoop jar > > > > > > > /usr/lib/hadoop-0.20/contrib/streaming/hadoop-streaming-0.20.2+320.jar > > > \ > > > > > -D mapred.child.java.opts=-Xmx1024m \ > > > > > -inputformat StreamInputFormat \ > > > > > -inputreader "StreamXmlRecordReader,begin=<mdc xmlns:HTML=\" > > > > > http://www.w3.org/TR/REC-xml\ <http://www.w3.org/TR/REC-xml%5C> < > http://www.w3.org/TR/REC-xml%5C> < > > http://www.w3.org/TR/REC-xml%5C> < > > > http://www.w3.org/TR/REC-xml%5C> < > > > > http://www.w3.org/TR/REC-xml%5C>">,end=</mdc>" > > > > > \ > > > > > -input > > > > > > > > > > > > > > > > > > > > /user/root/RNCDATA/MDFDORKUCRAR02/A20100531.0000-0700-0015-0700_RNCCN-MDFDORKUCRAR02 > > > > > \ > > > > > -jobconf mapred.map.tasks=1 \ > > > > > -jobconf mapred.reduce.tasks=0 \ > > > > > -output RNC25 \ > > > > > -mapper "/home/ftpuser1/Nodemapper5.groovy -Xmx2000m"\ > > > > > -reducer org.apache.hadoop.mapred.lib.IdentityReducer \ > > > > > -file /home/ftpuser1/Nodemapper5.groovy \ > > > > > -jt local > > > > > > > > > > I have noticed that the all hadoop processes showing 2001 memory > size > > > > which > > > > > i have set in hadoop-env.sh. and one the command, i give 2000 in > > mapper > > > > and > > > > > 1024 in child.java.opts but i think these values(1024,2001) are not > > in > > > > use. > > > > > secondly the following lines > > > > > > > > > > *hadoop 26120 25175 14 12:06 ? 00:00:01 > > > > > /usr/jdk1.6.0_03/jre/bin/java > > > > > > > > > > > > > > > > > > > > -Djava.library.path=/usr/jdk1.6.0_03/jre/lib/i386/client:/usr/jdk1.6.0_03/jre/l > > > > > hadoop 26162 26120 89 12:06 ? 00:00:05 > > > /usr/jdk1.6.0_03/bin/java > > > > > -classpath /usr/local/groovy/lib/groovy-1.7.3.jar > > > > > -Dscript.name=/usr/local/groovy/b* > > > > > > > > > > did not appear for first time when job runs. they appear when job > > > failed > > > > > for > > > > > first time and then again try to start mapping. I have one more > > > question > > > > > which is as all hadoop processes (namenode, datanode, > tasktracker...) > > > > > showing 2001 heapsize in process. will it means all the processes > > > using > > > > > 2001m of memory?? > > > > > > > > > > Regards > > > > > Shuja > > > > > > > > > > > > > > > On Mon, Jul 12, 2010 at 8:51 PM, Alex Kozlov <ale...@cloudera.com> > > > > wrote: > > > > > > > > > > > Hi Shuja, > > > > > > > > > > > > I think you need to enclose the invocation string in quotes. > Try: > > > > > > > > > > > > -mapper "/home/ftpuser1/Nodemapper5.groovy Xmx2000m" > > > > > > > > > > > > Also, it would be nice to see how exactly the groovy is invoked. > > Is > > > > > groovy > > > > > > started and them gives you OOM or is OOM error during the start? > > Can > > > > you > > > > > > see the new process with "ps -aef"? > > > > > > > > > > > > Can you run groovy in local mode? Try "-jt local" option. > > > > > > > > > > > > Thanks, > > > > > > > > > > > > Alex K > > > > > > > > > > > > On Mon, Jul 12, 2010 at 6:29 AM, Shuja Rehman < > > shujamug...@gmail.com > > > > > > > > > > wrote: > > > > > > > > > > > > > Hi Patrick, > > > > > > > Thanks for explanation. I have supply the heapsize in mapper in > > the > > > > > > > following way > > > > > > > > > > > > > > -mapper /home/ftpuser1/Nodemapper5.groovy Xmx2000m \ > > > > > > > > > > > > > > but still same error. Any other idea? > > > > > > > Thanks > > > > > > > > > > > > > > On Mon, Jul 12, 2010 at 6:12 PM, Patrick Angeles < > > > > patr...@cloudera.com > > > > > > > >wrote: > > > > > > > > > > > > > > > Shuja, > > > > > > > > > > > > > > > > Those settings (mapred.child.jvm.opts and > mapred.child.ulimit) > > > are > > > > > only > > > > > > > > used > > > > > > > > for child JVMs that get forked by the TaskTracker. You are > > using > > > > > Hadoop > > > > > > > > streaming, which means the TaskTracker is forking a JVM for > > > > > streaming, > > > > > > > > which > > > > > > > > is then forking a shell process that runs your groovy code > (in > > > > > another > > > > > > > > JVM). > > > > > > > > > > > > > > > > I'm not much of a groovy expert, but if there's a way you can > > > wrap > > > > > your > > > > > > > > code > > > > > > > > around the MapReduce API that would work best. Otherwise, you > > can > > > > > just > > > > > > > pass > > > > > > > > the heapsize in '-mapper' argument. > > > > > > > > > > > > > > > > Regards, > > > > > > > > > > > > > > > > - Patrick > > > > > > > > > > > > > > > > On Mon, Jul 12, 2010 at 4:32 AM, Shuja Rehman < > > > > shujamug...@gmail.com > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > Hi Alex, > > > > > > > > > > > > > > > > > > I have update the java to latest available version on all > > > > machines > > > > > in > > > > > > > the > > > > > > > > > cluster and now i run the job by adding this line > > > > > > > > > > > > > > > > > > -D mapred.child.ulimit=3145728 \ > > > > > > > > > > > > > > > > > > but still same error. Here is the output of this job. > > > > > > > > > > > > > > > > > > > > > > > > > > > root 7845 5674 3 01:24 pts/1 00:00:00 > > > > > > > /usr/jdk1.6.0_03/bin/java > > > > > > > > > -Xmx10 23m -Dhadoop.log.dir=/usr/lib/hadoop-0.20/logs > > > > > > > > > -Dhadoop.log.file=hadoop.log -Dha > > > > > doop.home.dir=/usr/lib/hadoop-0.20 > > > > > > > > > -Dhadoop.id.str= -Dhadoop.root.logger=INFO,co nsole > > > > > > > > > -Dhadoop.policy.file=hadoop-policy.xml -classpath > > > > > > > > /usr/lib/hadoop-0.20/con > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > f:/usr/jdk1.6.0_03/lib/tools.jar:/usr/lib/hadoop-0.20:/usr/lib/hadoop-0.20/hadoo > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > p-core-0.20.2+320.jar:/usr/lib/hadoop-0.20/lib/commons-cli-1.2.jar:/usr/lib/hado > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > op-0.20/lib/commons-codec-1.3.jar:/usr/lib/hadoop-0.20/lib/commons-el-1.0.jar:/u > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > sr/lib/hadoop-0.20/lib/commons-httpclient-3.0.1.jar:/usr/lib/hadoop-0.20/lib/com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > mons-logging-1.0.4.jar:/usr/lib/hadoop-0.20/lib/commons-logging-api-1.0.4.jar:/u > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > sr/lib/hadoop-0.20/lib/commons-net-1.4.1.jar:/usr/lib/hadoop-0.20/lib/core-3.1.1 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > .jar:/usr/lib/hadoop-0.20/lib/hadoop-fairscheduler-0.20.2+320.jar:/usr/lib/hadoo > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > p-0.20/lib/hadoop-scribe-log4j-0.20.2+320.jar:/usr/lib/hadoop-0.20/lib/hsqldb-1. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 8.0.10.jar:/usr/lib/hadoop-0.20/lib/hsqldb.jar:/usr/lib/hadoop-0.20/lib/jackson- > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > core-asl-1.0.1.jar:/usr/lib/hadoop-0.20/lib/jackson-mapper-asl-1.0.1.jar:/usr/li > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > b/hadoop-0.20/lib/jasper-compiler-5.5.12.jar:/usr/lib/hadoop-0.20/lib/jasper-run > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > time-5.5.12.jar:/usr/lib/hadoop-0.20/lib/jets3t-0.6.1.jar:/usr/lib/hadoop-0.20/l > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ib/jetty-6.1.14.jar:/usr/lib/hadoop-0.20/lib/jetty-util-6.1.14.jar:/usr/lib/hado > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > op-0.20/lib/junit-4.5.jar:/usr/lib/hadoop-0.20/lib/kfs-0.2.2.jar:/usr/lib/hadoop > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -0.20/lib/libfb303.jar:/usr/lib/hadoop-0.20/lib/libthrift.jar:/usr/lib/hadoop-0. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 20/lib/log4j-1.2.15.jar:/usr/lib/hadoop-0.20/lib/mockito-all-1.8.2.jar:/usr/lib/ > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > hadoop-0.20/lib/mysql-connector-java-5.0.8-bin.jar:/usr/lib/hadoop-0.20/lib/oro- > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 2.0.8.jar:/usr/lib/hadoop-0.20/lib/servlet-api-2.5-6.1.14.jar:/usr/lib/hadoop-0. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 20/lib/slf4j-api-1.4.3.jar:/usr/lib/hadoop-0.20/lib/slf4j-log4j12-1.4.3.jar:/usr > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > /lib/hadoop-0.20/lib/xmlenc-0.52.jar:/usr/lib/hadoop-0.20/lib/jsp-2.1/jsp-2.1.ja > > > > > > > > > r:/usr/lib/hadoop-0.20/lib/jsp-2.1/jsp-api-2.1.jar > > > > > > > > > org.apache.hadoop.util.RunJar > > > > > > > > > > > > > > > > > > /usr/lib/hadoop-0.20/contrib/streaming/hadoop-streaming-0.20.2+320.jar > > > > > > > -D > > > > > > > > > mapre d.child.java.opts=-Xmx2000M -D > > > mapred.child.ulimit=3145728 > > > > > > > > > -inputformat StreamIn putFormat -inputreader > > > > > > > > > StreamXmlRecordReader,begin=<mdc xmlns:HTML="http://www.w > > > > > > > > > 3.org/TR/REC-xml">,end=</mdc> > > > > > > > > > -input /user/root/RNCDATA/MDFDORKUCRAR02/A20100531 > > > > > > > > > .0000-0700-0015-0700_RNCCN-MDFDORKUCRAR02 -jobconf > > > > > mapred.map.tasks=1 > > > > > > > > > -jobconf m apred.reduce.tasks=0 -output RNC14 -mapper > > > > > > > > > /home/ftpuser1/Nodemapper5.groovy -re ducer > > > > > > > > > org.apache.hadoop.mapred.lib.IdentityReducer -file > > > > > > > > /home/ftpuser1/Nodemapp > > > > > > > > > er5.groovy > > > > > > > > > root 7930 7632 0 01:24 pts/2 00:00:00 grep > > > > > > Nodemapper5.groovy > > > > > > > > > > > > > > > > > > > > > > > > > > > Any clue? > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > On Sun, Jul 11, 2010 at 3:44 AM, Alex Kozlov < > > > > ale...@cloudera.com> > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > Hi Shuja, > > > > > > > > > > > > > > > > > > > > First, thank you for using CDH3. Can you also check what > > m* > > > > > > > > > > apred.child.ulimit* you are using? Try adding "* > > > > > > > > > > -D mapred.child.ulimit=3145728*" to the command line. > > > > > > > > > > > > > > > > > > > > I would also recommend to upgrade java to JDK 1.6 update > 8 > > at > > > a > > > > > > > > minimum, > > > > > > > > > > which you can download from the Java SE > > > > > > > > > > Homepage<http://java.sun.com/javase/downloads/index.jsp> > > > > > > > > > > . > > > > > > > > > > > > > > > > > > > > Let me know how it goes. > > > > > > > > > > > > > > > > > > > > Alex K > > > > > > > > > > > > > > > > > > > > On Sat, Jul 10, 2010 at 12:59 PM, Shuja Rehman < > > > > > > > shujamug...@gmail.com > > > > > > > > > > >wrote: > > > > > > > > > > > > > > > > > > > > > Hi Alex > > > > > > > > > > > > > > > > > > > > > > Yeah, I am running a job on cluster of 2 machines and > > using > > > > > > > Cloudera > > > > > > > > > > > distribution of hadoop. and here is the output of this > > > > command. > > > > > > > > > > > > > > > > > > > > > > root 5277 5238 3 12:51 pts/2 00:00:00 > > > > > > > > > /usr/jdk1.6.0_03/bin/java > > > > > > > > > > > -Xmx1023m -Dhadoop.log.dir=/usr/lib > > > /hadoop-0.20/logs > > > > > > > > > > > -Dhadoop.log.file=hadoop.log > > > > > > -Dhadoop.home.dir=/usr/lib/hadoop-0.20 > > > > > > > > > > > -Dhadoop.id.str= -Dhado > > op.root.logger=INFO,console > > > > > > > > > > > -Dhadoop.policy.file=hadoop-policy.xml -classpath > > > > > > > > > > > /usr/lib/hadoop-0.20/conf:/usr/ > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > jdk1.6.0_03/lib/tools.jar:/usr/lib/hadoop-0.20:/usr/lib/hadoop-0.20/hadoop-core-0.20.2+320.jar:/usr/lib/hadoo > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > p-0.20/lib/commons-cli-1.2.jar:/usr/lib/hadoop-0.20/lib/commons-codec-1.3.jar:/usr/lib/hadoop-0.20/lib/common > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > s-el-1.0.jar:/usr/lib/hadoop-0.20/lib/commons-httpclient-3.0.1.jar:/usr/lib/hadoop-0.20/lib/commons-logging-1 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > .0.4.jar:/usr/lib/hadoop-0.20/lib/commons-logging-api-1.0.4.jar:/usr/lib/hadoop-0.20/lib/commons-net-1.4.1.ja > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > r:/usr/lib/hadoop-0.20/lib/core-3.1.1.jar:/usr/lib/hadoop-0.20/lib/hadoop-fairscheduler-0.20.2+320.jar:/usr/l > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ib/hadoop-0.20/lib/hadoop-scribe-log4j-0.20.2+320.jar:/usr/lib/hadoop-0.20/lib/hsqldb-1.8.0.10.jar:/usr/lib/h > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > adoop-0.20/lib/hsqldb.jar:/usr/lib/hadoop-0.20/lib/jackson-core-asl-1.0.1.jar:/usr/lib/hadoop-0.20/lib/jackso > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > n-mapper-asl-1.0.1.jar:/usr/lib/hadoop-0.20/lib/jasper-compiler-5.5.12.jar:/usr/lib/hadoop-0.20/lib/jasper-ru > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ntime-5.5.12.jar:/usr/lib/hadoop-0.20/lib/jets3t-0.6.1.jar:/usr/lib/hadoop-0.20/lib/jetty-6.1.14.jar:/usr/lib > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > /hadoop-0.20/lib/jetty-util-6.1.14.jar:/usr/lib/hadoop-0.20/lib/junit-4.5.jar:/usr/lib/hadoop-0.20/lib/kfs-0. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 2.2.jar:/usr/lib/hadoop-0.20/lib/libfb303.jar:/usr/lib/hadoop-0.20/lib/libthrift.jar:/usr/lib/hadoop-0.20/lib > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > /log4j-1.2.15.jar:/usr/lib/hadoop-0.20/lib/mockito-all-1.8.2.jar:/usr/lib/hadoop-0.20/lib/mysql-connector-jav > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > a-5.0.8-bin.jar:/usr/lib/hadoop-0.20/lib/oro-2.0.8.jar:/usr/lib/hadoop-0.20/lib/servlet-api-2.5-6.1.14.jar:/u > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > sr/lib/hadoop-0.20/lib/slf4j-api-1.4.3.jar:/usr/lib/hadoop-0.20/lib/slf4j-log4j12-1.4.3.jar:/usr/lib/hadoop-0 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > .20/lib/xmlenc-0.52.jar:/usr/lib/hadoop-0.20/lib/jsp-2.1/jsp-2.1.jar:/usr/lib/hadoop-0.20/lib/jsp-2.1/jsp-api > > > > > > > > > > > -2.1.jar org.apache.hadoop.util.RunJar > > > > > > > > > > > > > > > > > > > > > > > > > > /usr/lib/hadoop-0.20/contrib/streaming/hadoop-streaming-0.20.2+320.jar > > > > > > > > > > > -D mapred.child.java.opts=-Xmx2000M -inputformat > > > > > > StreamInputFormat > > > > > > > > > > > -inputreader StreamXmlRecordReader,begin= <mdc > > > > > > xmlns:HTML=" > > > > > > > > > > > http://www.w3.org/TR/REC-xml";>,end=</mdc> -input > > > > > > > > > > > /user/root/RNCDATA/MDFDORKUCRAR02/A20100531 > > > > > > > > > > > .0000-0700-0015-0700_RNCCN-MDFDORKUCRAR02 -jobconf > > > > > > > mapred.map.tasks=1 > > > > > > > > > > > -jobconf mapred.reduce.tasks=0 -output RNC11 > > > -mapper > > > > > > > > > > > /home/ftpuser1/Nodemapper5.groovy -reducer > > > > > > > > > > > org.apache.hadoop.mapred.lib.IdentityReducer -file / > > > > > > > > > > > home/ftpuser1/Nodemapper5.groovy > > > > > > > > > > > root 5360 5074 0 12:51 pts/1 00:00:00 grep > > > > > > > > Nodemapper5.groovy > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------------------------------------------------------ > > > > > > > > > > > and what is meant by OOM and thanks for helping, > > > > > > > > > > > > > > > > > > > > > > Best Regards > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Sun, Jul 11, 2010 at 12:30 AM, Alex Kozlov < > > > > > > ale...@cloudera.com > > > > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > Hi Shuja, > > > > > > > > > > > > > > > > > > > > > > > > It looks like the OOM is happening in your code. Are > > you > > > > > > running > > > > > > > > > > > MapReduce > > > > > > > > > > > > in a cluster? If so, can you send the exact command > > line > > > > > your > > > > > > > code > > > > > > > > > is > > > > > > > > > > > > invoked with -- you can get it with a 'ps -Af | grep > > > > > > > > > > Nodemapper5.groovy' > > > > > > > > > > > > command on one of the nodes which is running the > task? > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > > > > > > > > > Alex K > > > > > > > > > > > > > > > > > > > > > > > > On Sat, Jul 10, 2010 at 10:40 AM, Shuja Rehman < > > > > > > > > > shujamug...@gmail.com > > > > > > > > > > > > >wrote: > > > > > > > > > > > > > > > > > > > > > > > > > Hi All > > > > > > > > > > > > > > > > > > > > > > > > > > I am facing a hard problem. I am running a map > reduce > > > job > > > > > > using > > > > > > > > > > > streaming > > > > > > > > > > > > > but it fails and it gives the following error. > > > > > > > > > > > > > > > > > > > > > > > > > > Caught: java.lang.OutOfMemoryError: Java heap space > > > > > > > > > > > > > at > Nodemapper5.parseXML(Nodemapper5.groovy:25) > > > > > > > > > > > > > > > > > > > > > > > > > > java.lang.RuntimeException: > > > > PipeMapRed.waitOutputThreads(): > > > > > > > > > > subprocess > > > > > > > > > > > > > failed with code 1 > > > > > > > > > > > > > at > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads(PipeMapRed.java:362) > > > > > > > > > > > > > at > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.streaming.PipeMapRed.mapRedFinished(PipeMapRed.java:572) > > > > > > > > > > > > > > > > > > > > > > > > > > at > > > > > > > > > > > > > > > > > > org.apache.hadoop.streaming.PipeMapper.close(PipeMapper.java:136) > > > > > > > > > > > > > at > > > > > > > > org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:57) > > > > > > > > > > > > > at > > > > > > > > > > > > > > > > > > > > > > > > > > > > org.apache.hadoop.streaming.PipeMapRunner.run(PipeMapRunner.java:36) > > > > > > > > > > > > > at > > > > > > > > > > > > > > > org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358) > > > > > > > > > > > > > > > > > > > > > > > > > > at > > > > > > > org.apache.hadoop.mapred.MapTask.run(MapTask.java:307) > > > > > > > > > > > > > at > > > > > org.apache.hadoop.mapred.Child.main(Child.java:170) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > I have increased the heap size in hadoop-env.sh and > > > make > > > > it > > > > > > > > 2000M. > > > > > > > > > > Also > > > > > > > > > > > I > > > > > > > > > > > > > tell the job manually by following line. > > > > > > > > > > > > > > > > > > > > > > > > > > -D mapred.child.java.opts=-Xmx2000M \ > > > > > > > > > > > > > > > > > > > > > > > > > > but it still gives the error. The same job runs > fine > > if > > > i > > > > > run > > > > > > > on > > > > > > > > > > shell > > > > > > > > > > > > > using > > > > > > > > > > > > > 1024M heap size like > > > > > > > > > > > > > > > > > > > > > > > > > > cat file.xml | /root/Nodemapper5.groovy > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Any clue????????? > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks in advance. > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > > > Regards > > > > > > > > > > > > > Shuja-ur-Rehman Baig > > > > > > > > > > > > > _________________________________ > > > > > > > > > > > > > MS CS - School of Science and Engineering > > > > > > > > > > > > > Lahore University of Management Sciences (LUMS) > > > > > > > > > > > > > Sector U, DHA, Lahore, 54792, Pakistan > > > > > > > > > > > > > Cell: +92 3214207445 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > > > Regards > > > > > > > > > > > Shuja-ur-Rehman Baig > > > > > > > > > > > _________________________________ > > > > > > > > > > > MS CS - School of Science and Engineering > > > > > > > > > > > Lahore University of Management Sciences (LUMS) > > > > > > > > > > > Sector U, DHA, Lahore, 54792, Pakistan > > > > > > > > > > > Cell: +92 3214207445 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > Regards > > > > > > > > > Shuja-ur-Rehman Baig > > > > > > > > > _________________________________ > > > > > > > > > MS CS - School of Science and Engineering > > > > > > > > > Lahore University of Management Sciences (LUMS) > > > > > > > > > Sector U, DHA, Lahore, 54792, Pakistan > > > > > > > > > Cell: +92 3214207445 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > Regards > > > > > > > Shuja-ur-Rehman Baig > > > > > > > _________________________________ > > > > > > > MS CS - School of Science and Engineering > > > > > > > Lahore University of Management Sciences (LUMS) > > > > > > > Sector U, DHA, Lahore, 54792, Pakistan > > > > > > > Cell: +92 3214207445 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Regards > > > > > Shuja-ur-Rehman Baig > > > > > _________________________________ > > > > > MS CS - School of Science and Engineering > > > > > Lahore University of Management Sciences (LUMS) > > > > > Sector U, DHA, Lahore, 54792, Pakistan > > > > > Cell: +92 3214207445 > > > > > > > > > > > > > > > > > > > > > -- > > > Regards > > > Shuja-ur-Rehman Baig > > > _________________________________ > > > MS CS - School of Science and Engineering > > > Lahore University of Management Sciences (LUMS) > > > Sector U, DHA, Lahore, 54792, Pakistan > > > Cell: +92 3214207445 > > > > > > > > > -- > Regards > Shuja-ur-Rehman Baig > _________________________________ > MS CS - School of Science and Engineering > Lahore University of Management Sciences (LUMS) > Sector U, DHA, Lahore, 54792, Pakistan > Cell: +92 3214207445 >
