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Posted to solr-user@lucene.apache.org by satya swaroop <sa...@gmail.com> on 2010/10/21 07:16:17 UTC

RAM increase

Hi all,
              I increased my RAM size to 8GB and i want 4GB of it to be used
for solr itself. can anyone tell me the way to allocate the RAM for the
solr.....


Regards,
satya

Re: RAM increase

Posted by Tommaso Teofili <to...@gmail.com>.
Hello Lance,
form the command line run:

> export JAVA_OPTS='-d64 -Xms128m -Xmx5g'

eventually changing values of Xms and Xmx.
Hope this helps.
Tommaso

2010/10/29 Lance Norskog <go...@gmail.com>

> When you start the Tomcat app, you tell it how much memory to allocate
> to the JVM. I don't remember where, probably in catalina.sh.
>
> On Fri, Oct 29, 2010 at 2:56 AM, satya swaroop <sa...@gmail.com>
> wrote:
> > Hi All,
> >
> >         Thanks for your reply.I have a doubt whether to increase the ram
> or
> > heap size to java or to tomcat where the solr is running????
> >
> >
> > Regards,
> > satya
> >
>
>
>
> --
> Lance Norskog
> goksron@gmail.com
>

Re: RAM increase

Posted by Lance Norskog <go...@gmail.com>.
When you start the Tomcat app, you tell it how much memory to allocate
to the JVM. I don't remember where, probably in catalina.sh.

On Fri, Oct 29, 2010 at 2:56 AM, satya swaroop <sa...@gmail.com> wrote:
> Hi All,
>
>         Thanks for your reply.I have a doubt whether to increase the ram or
> heap size to java or to tomcat where the solr is running????
>
>
> Regards,
> satya
>



-- 
Lance Norskog
goksron@gmail.com

Re: RAM increase

Posted by satya swaroop <sa...@gmail.com>.
Hi All,

         Thanks for your reply.I have a doubt whether to increase the ram or
heap size to java or to tomcat where the solr is running????


Regards,
satya

RE: RAM increase

Posted by Steven A Rowe <sa...@syr.edu>.
Memory limits info:

http://www.oracle.com/technetwork/java/hotspotfaq-138619.html#gc_heap_32bit

-d64 usage info:

<http://stackoverflow.com/questions/1443677/what-impact-if-any-does-the-d64-swtich-have-on-sun-jvm-resident-memory-usage>

Steve

> -----Original Message-----
> From: Dennis Gearon [mailto:gearond@sbcglobal.net]
> Sent: Thursday, October 21, 2010 1:08 PM
> To: solr-user@lucene.apache.org
> Subject: Re: RAM increase
> 
> Everything ovger ~3.7 3.7GB RAM (2^32, use your calculator) needs 64 bit
> addressing.
> 
> Dennis Gearon
> 
> Signature Warning
> ----------------
> It is always a good idea to learn from your own mistakes. It is usually a
> better idea to learn from others’ mistakes, so you do not have to make
> them yourself. from
> 'http://blogs.techrepublic.com.com/security/?p=4501&tag=nl.e036'
> 
> EARTH has a Right To Life,
>   otherwise we all die.
> 
> 
> --- On Thu, 10/21/10, Jonathan Rochkind <ro...@jhu.edu> wrote:
> 
> > From: Jonathan Rochkind <ro...@jhu.edu>
> > Subject: Re: RAM increase
> > To: "solr-user@lucene.apache.org" <so...@lucene.apache.org>
> > Date: Thursday, October 21, 2010, 9:56 AM
> > Jean-Sebastien Vachon wrote:
> > > You will also need to switch to a 64 bits JVM
> > > You might have to add the `-d64` flag as well as the
> > `-Xms` and `-Xmx`
> > >
> > >
> > I've actually had no luck googling what's up with the
> > -d64.  Can you point me to any documentation on what
> > effect it has, and on particular on what the boundary -Xmx
> > size is that requires -d64?
> >
> > Jonathan
> >
> >
> >

Re: RAM increase

Posted by Dennis Gearon <ge...@sbcglobal.net>.
Everything ovger ~3.7 3.7GB RAM (2^32, use your calculator) needs 64 bit addressing.

Dennis Gearon

Signature Warning
----------------
It is always a good idea to learn from your own mistakes. It is usually a better idea to learn from others’ mistakes, so you do not have to make them yourself. from 'http://blogs.techrepublic.com.com/security/?p=4501&tag=nl.e036'

EARTH has a Right To Life,
  otherwise we all die.


--- On Thu, 10/21/10, Jonathan Rochkind <ro...@jhu.edu> wrote:

> From: Jonathan Rochkind <ro...@jhu.edu>
> Subject: Re: RAM increase
> To: "solr-user@lucene.apache.org" <so...@lucene.apache.org>
> Date: Thursday, October 21, 2010, 9:56 AM
> Jean-Sebastien Vachon wrote:
> > You will also need to switch to a 64 bits JVM
> > You might have to add the `-d64` flag as well as the
> `-Xms` and `-Xmx`
> > 
> >   
> I've actually had no luck googling what's up with the
> -d64.  Can you point me to any documentation on what
> effect it has, and on particular on what the boundary -Xmx
> size is that requires -d64?
> 
> Jonathan
> 
> 
> 

Re: RAM increase

Posted by Jonathan Rochkind <ro...@jhu.edu>.
Jean-Sebastien Vachon wrote:
> You will also need to switch to a 64 bits JVM
> You might have to add the `-d64` flag as well as the `-Xms` and `-Xmx`
>
>   
I've actually had no luck googling what's up with the -d64.  Can you 
point me to any documentation on what effect it has, and on particular 
on what the boundary -Xmx size is that requires -d64?

Jonathan



Re: RAM increase

Posted by Jean-Sebastien Vachon <js...@videotron.ca>.
You will also need to switch to a 64 bits JVM
You might have to add the `-d64` flag as well as the `-Xms` and `-Xmx`

----- Original Message ----- 
From: "Gora Mohanty" <go...@mimirtech.com>
To: <so...@lucene.apache.org>
Sent: Thursday, October 21, 2010 2:34 AM
Subject: Re: RAM increase


On Thu, Oct 21, 2010 at 10:46 AM, satya swaroop <sa...@gmail.com> 
wrote:
> Hi all,
> I increased my RAM size to 8GB and i want 4GB of it to be used
> for solr itself. can anyone tell me the way to allocate the RAM for the
> solr.....
[...]

You will need to set up the allocation of RAM for Java, via the the -Xmx
and -Xms variables. If you are using something like Tomcat, that would
be done in the Tomcat configuration file. E.g., this option can be added
inside /etc/init.d/tomcat6 on new Debian/Ubuntu systems.

Regards,
Gora 


Re: RAM increase

Posted by Gora Mohanty <go...@mimirtech.com>.
On Thu, Oct 21, 2010 at 10:46 AM, satya swaroop <sa...@gmail.com> wrote:
> Hi all,
>              I increased my RAM size to 8GB and i want 4GB of it to be used
> for solr itself. can anyone tell me the way to allocate the RAM for the
> solr.....
[...]

You will need to set up the allocation of RAM for Java, via the the -Xmx
and -Xms variables. If you are using something like Tomcat, that would
be done in the Tomcat configuration file. E.g., this option can be added
inside /etc/init.d/tomcat6 on new Debian/Ubuntu systems.

Regards,
Gora