It would be helpful yo know which memory isn't being released. Is it virtual or physical or shared memory? Is it the heap space?
 
 
-----Original message-----
> From:Mikhail Khludnev <mkhludnev@griddynamics.com>
> Sent: Mon 03-Sep-2012 16:52
> To: solr-user@lucene.apache.org
> Subject: RE: Solr Not releasing memory
> 
> Rohit,
> Which collector do you use? Releasing physical ram is possible with
> compacting collectors like serial, parallel and maybe g1 and not possible
> with cms. The more important thing that releasing is really suspicious and
> even odd requrement. Please provide more details about your jvm and overall
> challenge.
> 03.09.2012 15:03 пользователь "Rohit" <rohit@simplify360.com> написал:
> >
> > I am currently using StandardDirectoryFactory, would switching directory
> factory have any impact on the indexes?
> >
> > Regards,
> > Rohit
> >
> >
> > -----Original Message-----
> > From: Claudio Ranieri [mailto:claudio.ranieri@estadao.com]
> > Sent: 03 September 2012 10:03
> > To: solr-user@lucene.apache.org
> > Subject: RES: Solr Not releasing memory
> >
> > Are you using MMapDirectoryFactory?
> > I had swap problem in linux to a big index when I used
> MMapDirectoryFactory.
> > You can to try use solr.NIOFSDirectoryFactory.
> >
> >
> > -----Mensagem original-----
> > De: Lance Norskog [mailto:goksron@gmail.com] Enviada em: domingo, 2 de
> setembro de 2012 22:00
> > Para: solr-user@lucene.apache.org
> > Assunto: Re: Solr Not releasing memory
> >
> > 1) I believe Java 1.7 release memory back to the OS.
> > 2) All of the Javas I've used on Windows do this.
> >
> > Is the physical memory use a problem? Does it push out all other programs?
> >
> > Or is it just that the Java process appears larger? This explains the
> latter:
> > http://blog.thetaphi.de/2012/07/use-lucenes-mmapdirectory-on-64bit.html
> >
> > ----- Original Message -----
> > | From: "Rohit" <rohit@simplify360.com>
> > | To: solr-user@lucene.apache.org
> > | Sent: Sunday, September 2, 2012 1:22:14 AM
> > | Subject: Solr Not releasing memory
> > |
> > | Hi,
> > |
> > |
> > |
> > | We are running solr3.5 using tomcal 6.26  on a Windows Enterprise RC2
> > | server, our index size if pretty large.
> > |
> > |
> > |
> > | We have noticed that once tomcat starts using/reserving ram it never
> > | releases them, even when there is not a single user on the system.  I
> > | have tried forced garbage collection, but that doesn't seem to help
> > | either.
> > |
> > |
> > |
> > | Regards,
> > |
> > | Rohit
> > |
> > |
> > |
> > |
> >
> >
>