Remember that in YARN, the two main responsibilities of the JobTracker is divided in two different components: - Resource Management by ResourceManager (this is a global component) - Job scheduling and monitoring by the NodeManager (this is a per-node component) - Resource negotiation and task execution by the ApplicationMaster (which it´s a per-application component)
Said this, like any Java-based process, for YARN could be very beneficial to have a lot of RAM in a careful tuned JVM. 2013/8/8 ch huang <[email protected]> > the yarn resource manager require a lot of memory as jobtracker? -- Marcos Ortiz Valmaseda Product Manager at PDVSA http://about.me/marcosortiz
