Felix, Are you noticing this from the NN Web UI or from proper JVM monitoring tools? Just so you know, the UI had a flaw that has since been fixed: https://issues.apache.org/jira/browse/HDFS-94
On Thu, Jan 19, 2012 at 4:53 AM, felix gao <gre1...@gmail.com> wrote: > 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 -- Harsh J Customer Ops. Engineer, Cloudera
