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Posted to users@tomcat.apache.org by vicky b <vi...@gmail.com> on 2011/05/23 15:44:43 UTC
GC algorithm
HI,
How can i come to know the GC algorithm used in tomcat... and all GC
configuarations..........
--
*Thanks & Regards
Vickyb
*
RE: GC algorithm
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: vicky b [mailto:vickyb2084@gmail.com]
> Subject: Re: GC algorithm
> why the difference.
To repeat myself:
> Because the objects are no longer reachable in your Tomcat 6
> environment but are in Tomcat 7. Nothing to do with the GC
> algorithm employed. Analyze the heap and find out what
> references to the objects of interest are still around.
Do the heap analysis.
- Chuck
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Re: GC algorithm
Posted by vicky b <vi...@gmail.com>.
Both tomcat 6 and tomcat are running on the same machine using same JVM and
as you said
GC algorithms are the province of the JVM which according to my
understanding means depends upon JVM then why the difference.
On Mon, May 23, 2011 at 7:30 PM, Caldarale, Charles R <
Chuck.Caldarale@unisys.com> wrote:
> > From: vicky b [mailto:vickyb2084@gmail.com]
> > Subject: Re: GC algorithm
>
> > then why do i see a difference in behaviour for tomcat 6
> > and tomcat 7 when i undeploy my app the objects that are
> > collected in tomcat6 are not collected in tomcat7?
>
> Because the objects are no longer reachable in your Tomcat 6 environment
> but are in Tomcat 7. Nothing to do with the GC algorithm employed. Analyze
> the heap and find out what references to the objects of interest are still
> around.
>
> - Chuck
>
>
> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY
> MATERIAL and is thus for use only by the intended recipient. If you received
> this in error, please contact the sender and delete the e-mail and its
> attachments from all computers.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
--
*Thanks & Regards
Vickyb
*
RE: GC algorithm
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: vicky b [mailto:vickyb2084@gmail.com]
> Subject: Re: GC algorithm
> then why do i see a difference in behaviour for tomcat 6
> and tomcat 7 when i undeploy my app the objects that are
> collected in tomcat6 are not collected in tomcat7?
Because the objects are no longer reachable in your Tomcat 6 environment but are in Tomcat 7. Nothing to do with the GC algorithm employed. Analyze the heap and find out what references to the objects of interest are still around.
- Chuck
THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers.
---------------------------------------------------------------------
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Re: GC algorithm
Posted by vicky b <vi...@gmail.com>.
then why do i see a difference in behaviour for tomcat 6 and tomcat 7 when i
undeploy my app the objects that are collected in tomcat6 are not collected
in tomcat7?
On Mon, May 23, 2011 at 7:19 PM, Caldarale, Charles R <
Chuck.Caldarale@unisys.com> wrote:
> > From: vicky b [mailto:vickyb2084@gmail.com]
> > Subject: GC algorithm
>
> > How can i come to know the GC algorithm used in tomcat...
>
> That's easy: none. GC algorithms are the province of the JVM, not Tomcat.
>
> > and all GC configuarations..........
>
> Read the JVM doc.
>
> - Chuck
>
>
> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY
> MATERIAL and is thus for use only by the intended recipient. If you received
> this in error, please contact the sender and delete the e-mail and its
> attachments from all computers.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
--
*Thanks & Regards
Vickyb
*
RE: GC algorithm
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: vicky b [mailto:vickyb2084@gmail.com]
> Subject: GC algorithm
> How can i come to know the GC algorithm used in tomcat...
That's easy: none. GC algorithms are the province of the JVM, not Tomcat.
> and all GC configuarations..........
Read the JVM doc.
- Chuck
THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers.
---------------------------------------------------------------------
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