Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
RT 3.8.6, I just thought it was the MPM Settings, with maxrequestperchild or threadlimit. Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 11:24 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? That's a good start. You might want to also look into your MySQL schema. There is a slight possibility that large DB queries are causing this issue. I forgot to ask, what RT version are you running? Will From: Michael Neuschafer [mailto:mneuscha...@nationalstoresinc.com] Sent: Friday, February 19, 2010 11:21 AM To: Will Sani; rt-users@lists.bestpractical.com Subject: RE: [rt-users] RT Apache memory leak. any examples of MPM settings? Well, when I restart apache my memory and swap drops down. Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 11:18 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Highly doubt Apache is to blame, especially 2.2.x. What eluded you to think it was Apache? Will From: Michael Neuschafer [mailto:mneuscha...@nationalstoresinc.com] Sent: Friday, February 19, 2010 10:51 AM To: Will Sani; rt-users@lists.bestpractical.com Subject: RE: [rt-users] RT Apache memory leak. any examples of MPM settings? Apache version 2.2.12 Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 10:49 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Never noticed issues with Apache. What version are you running? Will ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
That's a good start. You might want to also look into your MySQL schema. There is a slight possibility that large DB queries are causing this issue. I forgot to ask, what RT version are you running? Will From: Michael Neuschafer [mailto:mneuscha...@nationalstoresinc.com] Sent: Friday, February 19, 2010 11:21 AM To: Will Sani; rt-users@lists.bestpractical.com Subject: RE: [rt-users] RT Apache memory leak. any examples of MPM settings? Well, when I restart apache my memory and swap drops down. Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 11:18 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Highly doubt Apache is to blame, especially 2.2.x. What eluded you to think it was Apache? Will From: Michael Neuschafer [mailto:mneuscha...@nationalstoresinc.com] Sent: Friday, February 19, 2010 10:51 AM To: Will Sani; rt-users@lists.bestpractical.com Subject: RE: [rt-users] RT Apache memory leak. any examples of MPM settings? Apache version 2.2.12 Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 10:49 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Never noticed issues with Apache. What version are you running? Will ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
Well, when I restart apache my memory and swap drops down. Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 11:18 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Highly doubt Apache is to blame, especially 2.2.x. What eluded you to think it was Apache? Will From: Michael Neuschafer [mailto:mneuscha...@nationalstoresinc.com] Sent: Friday, February 19, 2010 10:51 AM To: Will Sani; rt-users@lists.bestpractical.com Subject: RE: [rt-users] RT Apache memory leak. any examples of MPM settings? Apache version 2.2.12 Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 10:49 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Never noticed issues with Apache. What version are you running? Will ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
Highly doubt Apache is to blame, especially 2.2.x. What eluded you to think it was Apache? Will From: Michael Neuschafer [mailto:mneuscha...@nationalstoresinc.com] Sent: Friday, February 19, 2010 10:51 AM To: Will Sani; rt-users@lists.bestpractical.com Subject: RE: [rt-users] RT Apache memory leak. any examples of MPM settings? Apache version 2.2.12 Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 10:49 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Never noticed issues with Apache. What version are you running? Will ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
It is not a memory leak, memory does not get returned to the system -- ever. So a large query can bloat the memory usage and it will not shrink. We use cron to do a "graceful" apache restart once a day. No impact to users and it handles the memory usage growth over time. Regards, Ken On Fri, Feb 19, 2010 at 10:31:53AM -0800, Michael Neuschafer wrote: > My request tracker apache has been eating up memory. I think there is a > memory leak. Below is my prefork MPM and Worker MPM what setting do you > recommend? > > > > > > # prefork MPM > > # StartServers: number of server processes to start > > # MinSpareServers: minimum number of server processes which are kept > spare > > # MaxSpareServers: maximum number of server processes which are kept > spare > > # MaxClients: maximum number of server processes allowed to start > > # MaxRequestsPerChild: maximum number of requests a server process > serves > > > > StartServers 2 > > MinSpareServers 2 > > MaxSpareServers 3 > > MaxClients 50 > > MaxRequestsPerChild 1000 > > > > > > # worker MPM > > # StartServers: initial number of server processes to start > > # MaxClients: maximum number of simultaneous client connections > > # MinSpareThreads: minimum number of worker threads which are kept spare > > # MaxSpareThreads: maximum number of worker threads which are kept spare > > # ThreadsPerChild: constant number of worker threads in each server > process > > # MaxRequestsPerChild: maximum number of requests a server process > serves > > > > StartServers 2 > > ThreadLimit 64 > > > > > > # event MPM > > # StartServers: initial number of server processes to start > > # MaxClients: maximum number of simultaneous client connections > > # MinSpareThreads: minimum number of worker threads which are kept spare > > # MaxSpareThreads: maximum number of worker threads which are kept spare > > # ThreadsPerChild: constant number of worker threads in each server > process > > # MaxRequestsPerChild: maximum number of requests a server process > serves > > > > StartServers 2 > > MaxClients 50 > > MinSpareThreads 25 > > MaxSpareThreads 100 > > ThreadLimit 64 > > ThreadsPerChild 25 > > MaxRequestsPerChild 1500 > > > > > > Michael Neuschafer > > PC Support Specialist > > National Stores Inc. > > (310) 436 - 2150 > > > > ___ > http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users > > Community help: http://wiki.bestpractical.com > Commercial support: sa...@bestpractical.com > > 2010 RT Training Sessions! > San Francisco, CA, USA - Feb 22 & 23 > Dublin, Ireland - Mar 15 & 16 > Boston, MA, USA - April 5 & 6 > Washington DC, USA - Oct 25 & 26 > > Discover RT's hidden secrets with RT Essentials from O'Reilly Media. > Buy a copy at http://rtbook.bestpractical.com ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
Apache version 2.2.12 Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 From: rt-users-boun...@lists.bestpractical.com [mailto:rt-users-boun...@lists.bestpractical.com] On Behalf Of Will Sani Sent: Friday, February 19, 2010 10:49 AM To: rt-users@lists.bestpractical.com Subject: Re: [rt-users] RT Apache memory leak. any examples of MPM settings? Never noticed issues with Apache. What version are you running? Will ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
Re: [rt-users] RT Apache memory leak. any examples of MPM settings?
Never noticed issues with Apache. What version are you running? Will ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
[rt-users] RT Apache memory leak. any examples of MPM settings?
My request tracker apache has been eating up memory. I think there is a memory leak. Below is my prefork MPM and Worker MPM what setting do you recommend? # prefork MPM # StartServers: number of server processes to start # MinSpareServers: minimum number of server processes which are kept spare # MaxSpareServers: maximum number of server processes which are kept spare # MaxClients: maximum number of server processes allowed to start # MaxRequestsPerChild: maximum number of requests a server process serves StartServers 2 MinSpareServers 2 MaxSpareServers 3 MaxClients 50 MaxRequestsPerChild 1000 # worker MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves StartServers 2 ThreadLimit 64 # event MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves StartServers 2 MaxClients 50 MinSpareThreads 25 MaxSpareThreads 100 ThreadLimit 64 ThreadsPerChild 25 MaxRequestsPerChild 1500 Michael Neuschafer PC Support Specialist National Stores Inc. (310) 436 - 2150 ___ http://lists.bestpractical.com/cgi-bin/mailman/listinfo/rt-users Community help: http://wiki.bestpractical.com Commercial support: sa...@bestpractical.com 2010 RT Training Sessions! San Francisco, CA, USA - Feb 22 & 23 Dublin, Ireland - Mar 15 & 16 Boston, MA, USA - April 5 & 6 Washington DC, USA - Oct 25 & 26 Discover RT's hidden secrets with RT Essentials from O'Reilly Media. Buy a copy at http://rtbook.bestpractical.com
