I don't work directly with WAS here, but talk to the guys daily. I would check the heap size contra gc runs and the time that takes. It migh be much better to split into several smaller linux was servers with smaller memory, heap size and shorter time for gc runs.
We have several WAS servers, and most of them has less than 2 GB. Usually we start at 1 or 1.2 GB and increase if needed, swap is two 64 MB vdisk and one physical 380 MB. Tuning heap size is critical for resp. time. With more WAS servers with smaller heap size, garbage collection runs will be much shorter, making total resp time better. It very much depends on the java code as well of course. /Tore ___________________________________________ Tore Agblad Volvo Information Technology Infrastructure Mainframe Design & Development, Linux servers Dept 4352 DA1S SE-405 08, Gothenburg Sweden Telephone: +46-31-3233569 E-mail: [email protected] http://www.volvo.com/volvoit/global/en-gb/ -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Daniel Tate Sent: den 27 juli 2010 00:57 To: [email protected] Subject: Re: OOM Condition on SLES11 running WAS - Tuning problems? We set swappiness to 0 and started all servers. we will see if that helps and I will look into the sp level upgrade. Does anyone have any good tweeks for z websphere by chance? On Jul 26, 2010 4:59 PM, "Marcy Cortes" <[email protected]> wrote: > Thanks for that clarification! > > > Marcy > > -----Original Message----- > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Mark Post > Sent: Monday, July 26, 2010 2:21 PM > To: [email protected] > Subject: Re: [LINUX-390] OOM Condition on SLES11 running WAS - Tuning problems? > >>>> On 7/26/2010 at 05:05 PM, Marcy Cortes <[email protected]> wrote: >> I was going to suggest a dump and a ticket to Novell, but it looks like you >> aren't SP1, and so are unsupported. > > SLES11 GA is fully supported until 6 months after SP1 went GA. Even after that, NTS supports the product line throughout its life. We just can't get Level 3 to look at a problem after 6 months, which means bug fixes won't be created for a customer unless it's against SP1. > > > Mark Post > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
