Thanks for the tips! I also sent the same mail to focus-linux@xxxxxxxxxxxxxxxxx, so if you are interesting in the topic, you may want to look what people are answering there to :) I had to send the mail two times because linux-admin rejected my mail the first time. If anyone else have some more info, I will be happy to read and learn from them! Thanks -- Lars On Fri, Nov 21, 2008 at 2:06 PM, Daniel A. Avelino <daavelino@xxxxxxxxx> wrote: > Hi Lars, > > I already change these parametes working with oracle. I had not any > bad experience but in mine cases, I was running only oracle (10g) and > some apache based applications (apache + php + javascript). I think it > is strange because there are more parameters to change when using > oracle 10g, both, by work only and in order to tunning it, e.g. memory > parameters, semaphores and so on. If you wish, I could suggest this > documentation I already follow sucessfully > > http://www.puschitz.com/TuningLinuxForOracle.shtml > > If you are starting the project, I think it will give you a good > knowledge of the process, including some test you can perform in order > to give some metrics about your system. It is a Red Hat based > documentation but is easy to transate it for other distributions. > > Please, give us (me?) some feedback. > > Good luck, > > > Avelino, Daniel A. > > On Fri, Nov 21, 2008 at 10:46 AM, Lars <sunberg@xxxxxxxxx> wrote: >> Hi! >> >> I'm working with Linux in a big enterprise. >> I now got a job with includes changing out some kernel parameters in >> one of our internal web services (very critical). >> Oracle (which we are running) are saying that this is should better >> our SSO solution on the web servers. >> >> Ok, so the kernel parameters are currently like these: >> net.ipv4.tcp_keepalive_time = 7200 >> net.ipv4.tcp_keepalive_probes = 9 >> net.ipv4.tcp_keepalive_intvl = 75 >> >> And Oracle want me (us) to change it to: >> net.ipv4.tcp_keepalive_time = 300 >> net.ipv4.tcp_keepalive_probes = 3 >> net.ipv4.tcp_keepalive_intvl = 20 >> >> I must do this on several HA servers, so I really dont want this to go wrong! >> >> Do you guys have any tips, warnings or anything that can help me do >> this as smooth as possible? Do you have any bad experiences with >> changing these values? >> >> >> Thanks! >> >> -- >> Lars >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-admin" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- To unsubscribe from this list: send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html