Thanks for helping! Per your post, I've researched the 'prefork MPM' section of my httpd.conf file but am not finding anything that helps me fine tune the settings for my particular server usage or server type.
I believe I saw some example .conf files that were like htppd-huge.conf htppd-large.conf htppd-small.conf and stuff like that. I went through each saw that the huge one was referring to a server with 4GB ram which is what mine has. I tried using those settings but my server didn't like it very much at all! Next I tried using the large and medium ones but again my server acted funny so I reverted back to what I have:
There must be a way to limit the CPU usage of each httpd thread so that it doesn't reach 100% ? I read doc's on the Apache site that explained what each of the above does but it didn't help me figure out which way to go with things. Do I leave the worker.c alone above and focus on the prefork? You said to modify the FF but I don't know what FF stands for sorry. You pasted MaxClients, etc. so I'm assuming it's the prefork I should mess with.
Another thing that I tried was since the huge .conf file example had settings almost double mine, I attempted to double the settings such as changing StartServers to 32 from 16, all the way down the module list. That didn't work either.
We have more than 2GB of RAM that's not being used since Plesk usually says we're using between 1GB and 2GB, so I don't imagine this is memory related. Also since most threads in TOP show 0.3% cpu usage to 1.7%cpu usage, it seems to be a problem when I find 100% usage. For instance I got home an hour ago and killed 5 threads that were 100% cpu usage in TOP. I just checked now and see 2 more running and bogging down my server. There's a big difference between 0.6% and 100% I'd say Any further help for my confusion would be GREATLY appreciated!
CPU usage: PS versus TOP - Different output
Hi
When monitoring a Linux environment with PS command, reported CPU value for a certain process differs, sometimes greatly, from the value seen in TOP.
I understood this is not a bug, they report different data.
I can't understand the nature... (4 Replies)
I am running a Dell PE R815 with 4 x AMD 12 core CPUs with 128GB of RAM and a RAID 5 array of 6 SAS disks. This is an HPC application and is definitely CPU bound, however once I run 16 of these processes (thus pinning 16 cores) the work performed slows down dramatically, to maybe 5 or 10% of what... (2 Replies)
Hi Guys,
I need to write a script capable of identifying when a high cpu utilitzation process. It sounds simple but we are on a AIX 5.3 environment with Virtual CPU's (VP's) and logical CPU's. Please any ideas or tips would be highly appreciated. Thanks.
Harby. (6 Replies)
Hi All,
Yesterday my Linux server went panic and even a small command took a lot of time to run.
When i monitored pl find the below output
Cpu(s): 0.1%us, 98.4%sy, 0.0%ni, 1.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
the time spent on kernel mode is 98 % and also idle time is around 1.5 %...... (4 Replies)
Hi,
I can't seem to make sense of this. My wait time is showing really high but vmstat's and topas are showing normal usage.
ps aux
USER PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 9961810 5680.7 0.0 448 384 - A Dec 16 6703072:12 wait
... (2 Replies)
Dear All,
One production Server is affected by high usage.
Application is slow now. Please guide me how to solve it?
NMON Report shows full cpu usage.
Here im posting some server details.
bash-3.2# lparstat -i
Node Name : *********
Partition Name ... (6 Replies)
I have created one script and i have added it into cron to run after 10 mins. However I have noted that whenever that script runs, It causes CPU utilization of server to increase about 10-20 %
I have rechecked script and there is no way i can make changes, Script contain only 2-3 commands. So... (4 Replies)
HI
In my M5000 , one of domain is having SAp installed. from today onwards we are facing some stange issue.
when we start SAP application, that particular user is taking 95 % of system CP and renaming 5 % is taken by system . because of this reason application is slow.
i have 4 CPU(32... (4 Replies)
Hi Fellas,
Not sure how I can dig in even further but we notice that one of our DB servers is showing high Sys% CPU usage even though when I execute the following command :
I can see that postgres is the only one using the CPU. So if anyone can advise me what would be the best way to... (3 Replies)
Discussion started by: arizah
3 Replies
LEARN ABOUT LINUX
a2ensite
A2ENSITE(8) System Manager's Manual A2ENSITE(8)NAME
a2ensite, a2dissite - enable or disable an apache2 site / virtual host
SYNOPSIS
a2ensite [site]
a2dissite [site]
DESCRIPTION
This manual page documents briefly the a2ensite and a2dissite commands.
a2ensite is a script that enables the specified site (which contains a <VirtualHost> block) within the apache2 configuration. It does this
by creating symlinks within /etc/apache2/sites-enabled. Likewise, a2dissite disables a site by removing those symlinks. It is not an
error to enable a site which is already enabled, or to disable one which is already disabled.
The default site is handled specially: The resulting symlink will be called 000-default in order to be loaded first.
EXAMPLES
a2dissite default
Disables the default site.
FILES
/etc/apache2/sites-available
Directory with files giving information on available sites.
/etc/apache2/sites-enabled
Directory with links to the files in sites-available for enabled sites.
SEE ALSO apache2ctl(8).
AUTHOR
This manual page was written by Stefan Fritsch <sf@debian.org> (based on the a2enmod manual page by Daniel Stone <daniel@sfarc.net>) for
the Debian GNU/Linux distribution.
8 June 2007 A2ENSITE(8)