topic Re: hp apache in Operating System - HP-UX

hp apache

Shivkumar — Wed, 17 Aug 2005 19:38:10 GMT

Dear Sirs,

I am using hp apache 2.0.48 on hpux 11.00. The httpd.conf has default "StartServers 2".

I am thinking to increase it as "StartServers 5". I have seen some documents on the site but they are very generic in nature.

I believe having sufficient number of server process in the begining will improve performance. If we have 5 servers in the begining and suppose each server process can spawn 75 threads then we will have 375 concurrent connections to serve the client request.

Please advise.

Thanks,
Shiv

Re: hp apache

Bill Hassell — Wed, 17 Aug 2005 20:23:21 GMT

Increasing the server count may help if your site is heavily loaded. Make sure that current delays are related to running code and not due to sources of data that are not controlled by Apache. Also note that kernel parameters such as nfile, nproc, nkthread and possibly max_thread_proc. Also make sure semaphores are sized large enough.

Re: hp apache

morganelan — Wed, 17 Aug 2005 21:05:46 GMT

Please see this link:
http://httpd.apache.org/docs/1.3/misc/perf-hp.html

Re: hp apache

Yogeeraj_1 — Wed, 17 Aug 2005 23:55:33 GMT

hi,

As Bill mentioned, you should also review your kernel parameters.

also have a look at the following site:
http://publib.boulder.ibm.com/infocenter/wasinfo/v5r1//index.jsp?topic=/com.ibm.websphere.base.doc/info/aes/ae/rprf_webserverparameters.html

hope this helps too!

kind regards
yogeeraj

Re: hp apache

Vibhor Kumar Agarwal — Thu, 18 Aug 2005 00:04:17 GMT

Make sure that your server is not overloaded.

Because if you increase it concurrent connections will inc. but the server load will also increase and it might give you a negative performance.

Re: hp apache

Yogeeraj_1 — Thu, 18 Aug 2005 00:53:08 GMT

hi again,
below a quote from metalink note: 149743.1
Subject: what are the Recommended Settings for parameters MinSpareServers, MaxSpareServers, StartServers

StartServers
-------------------
Limit on total number of servers running, i.e., limit on the number of clients who can simultaneously connect --- if this limit is ever reached, clients will be LOCKED OUT, so it should NOT BE SET TOO LOW. It is intended mainly as a brake to keep a runaway server from taking Unix with it as it spirals down.
Recommended values that are sufficient for most sites:
MinSpareServers 5
MaxSpareServers 10

StartServers 5

hope this helps too!

regards
yogeeraj

Re: hp apache

Shivkumar — Thu, 18 Aug 2005 02:39:45 GMT

Hi Yogeeraj,

Is it for hp apache 2.0.48 on hpux 11.00 ?
What is metalink note: 149743.1 and how to access it ?

Thanks,
Shiv

Re: hp apache

Yogeeraj_1 — Thu, 18 Aug 2005 02:53:17 GMT

hi shiv,

For Apache 2.x, see:
http://h20293.www2.hp.com/cgi-bin/swdepot_parser.cgi/cgi/displayProductInfo.pl?productNumber=HPUXWSSUITE

As for metalink, you will need to have a support contract with Oracle. They will give you an account so that you can connect to their site (http://metalink.oracle.com)

if you need any further help, let us know.

regards
yogeeraj