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From Harsh J <ha...@cloudera.com>
Subject Re: namenode grows overtime
Date Thu, 19 Jan 2012 02:56:09 GMT

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:

On Thu, Jan 19, 2012 at 4:53 AM, felix gao <gre1600@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

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