Hi guys, we are running Hadoop 0.20.2+228, the namenode process's memory grows overtime to occupy over 18GB. However, if I restart the namenode, it only occupies about 10GB after it is stable. I am wondering if there is anyway to figure out what is going on with namenode that causes it to grow very rapidly and if there are any tools to make the namenode printout some useful information on what is holding onto that memory.
Thanks, Felix
