Hi Arun, Will not cross post hereafter.
I had the same heap size value, same no.of jobs,scheduler and it is works fine in hadoop 1.0.4 version for 8 to 9 months, but I'm facing this JT OOME issue in hadoop 1.2.1 version only. Even though I tried to set heap size max of 16G but it eats the whole memory. Thanks, Viswa On Oct 15, 2013 7:30 AM, "Arun C Murthy" <a...@hortonworks.com> wrote: > Please don't cross-post. > > HADOOP_HEAPSIZE of 1024 is too low. You might want to bump it up to 16G or > more, depending on: > * #jobs > * Scheduler you use. > > Arun > > On Oct 11, 2013, at 9:58 AM, Viswanathan J <jayamviswanat...@gmail.com> > wrote: > > Hi, > > I'm running a 14 nodes Hadoop cluster with tasktrackers running in all > nodes. > > Have set the jobtracker default memory size in hadoop-env.sh > > *HADOOP_HEAPSIZE="1024"* > * > * > Have set the mapred.child.java.opts value in mapred-site.xml as, > > <property> > <name>mapred.child.java.opts</name> > <value>-Xmx2048m</value> > > > -- > Regards, > Viswa.J > > > -- > Arun C. Murthy > Hortonworks Inc. > http://hortonworks.com/ > > > > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity > to which it is addressed and may contain information that is confidential, > privileged and exempt from disclosure under applicable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You.
