as freeVSD (running more than 25 VS's) is unusable on an untuned red hat server wouldn't it be wise for a simple tuning script to be put together? It does seem surprising to me that if freeVSD is being used commercially that we are only seeing these tuning problems now and the tuning guides are not included in the install docs
Also be aware following the steps in the post linked they will not survive a host reboot so probably adding them to /etc/rc.d/rc.local would be best, also some later versions of Red Hat (7.1 I know of) have /etc/sysctl.conf where you can add the changes You will also find 'top' requires a rebuild to, we are finding some of these problems the hard way and not sure whats going to break next we have 3 servers each now with over 30 VS's on them and wondering where the next problem will occur - I think its safe to say that the standard distributions of just about everything on the host server are not built with freeVSD in mind and as each VS adds about 20 processes (admitedly most sleeping) then you can see how it can cause problems - 25 VS's equals 500 processes - I think a tuning guide at least in the Docs is a must otherwise users are unaware of the potential pitfalls, we posted the original post about this in sept but can't beleive we are the first to put more than 25 VS's on a server. Steve ----- Original Message ----- From: "Tim Sellar" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, October 08, 2001 11:38 AM Subject: RE: BIG problem under running vsd system !! > In this post > (http://www.freevsd.org/support/mail-archives/freevsd-support/2001/Sep/0113. > html) I indicated some of the performance tuning which may be required as > the number of hosted virtual servers increases. An additional parameter > which can sometimes require increasing is the hosting server's process table > size. Could you have a look and see if you are close to your systems current > process table size limit as I think this could result in some of the > problems you are seeing... > > Tim > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of > > [EMAIL PROTECTED] > > Sent: 06 October 2001 10:08 > > To: freevsd-support > > Subject: BIG problem under running vsd system !! > > > > > > Hi all, > > > > I have a big proble, under a (in all other points) well running vsd > > hostserver. When the customer does an rebootvs - the server seems to > > have fork problems and does not run the vs procs: > > > > [admin@matrix /]$ rebootvs > > Sending all processes a TERM signal > > Sending all remaining processes a KILL signal > > Starting virtual server processes > > /etc/rc: fork: Die Ressource ist zur Zeit nicht verf�gbar > > > > (Die Ressource ist zur Zeit nicht verf�gbar => means: The ressource is > > at this time not available) > > > > [admin@matrix /]$ ps -aux > > USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND > > root 2168 0.0 0.1 2368 1304 ? S 11:11 0:00 /bin/bash > > root 2173 0.0 0.1 2428 1000 ? S 11:11 0:00 su admin > > admin 2174 0.0 0.1 2336 1272 ? S 11:11 0:00 bash > > root 2267 0.0 0.0 2708 884 ? R 11:16 0:00 ps -aux > > > > But when I execute this as root in the vs - it works: > > > > [root@matrix /]# rebootvs > > Sending all processes a TERM signal > > Sending all remaining processes a KILL signal > > Starting virtual server processes > > starting system logging: syslogd > > starting daemon: crond > > starting daemon: atd > > starting web server: httpd > > starting MySQL server: mysql > > starting local daemons:. > > starting ssh server: sshd > > [root@matrix /]# Starting mysqld daemon with databases from /var/lib/mysql > > > > [root@matrix /]# ps -aux > > USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND > > root 2168 0.0 0.1 2368 1304 ? S 11:11 0:00 /bin/bash > > admin 2299 0.0 0.0 1508 672 ? S 11:17 0:00 > > /sbin/syslogd -m 0 -p /var/run/log > > admin 2301 1.2 0.1 2096 1024 ? S 11:17 0:00 sh > > /usr/bin/safe_mysqld --bind-addres... > > root 2302 0.0 0.0 1536 704 ? S 11:17 0:00 > > /usr/sbin/crond > > root 2309 5.7 0.1 2440 1156 ? S 11:17 0:00 > > /usr/sbin/sshd > > admin 2321 2.3 0.4 26720 4416 ? SN 11:17 0:00 > > /usr/libexec/mysqld -... > > admin 2323 0.0 0.4 26720 4416 ? SN 11:17 0:00 > > /usr/libexec/mysqld -... > > admin 2324 0.0 0.4 26720 4416 ? SN 11:17 0:00 > > /usr/libexec/mysqld -... > > admin 2325 0.0 0.4 26720 4416 ? SN 11:17 0:00 > > /usr/libexec/mysqld -... > > web 2327 0.0 0.3 9668 3416 ? S 11:17 0:00 > > /usr/sbin/httpd > > web 2328 0.0 0.3 9668 3416 ? S 11:17 0:00 > > /usr/sbin/httpd > > web 2329 0.0 0.3 9668 3416 ? S 11:17 0:00 > > /usr/sbin/httpd > > web 2330 0.0 0.3 9668 3416 ? S 11:17 0:00 > > /usr/sbin/httpd > > web 2331 0.0 0.3 9668 3416 ? S 11:17 0:00 > > /usr/sbin/httpd > > root 2332 0.0 0.0 2716 888 ? R 11:17 0:00 ps -aux > > > > > > suid of rebootvs is ok - all(!) vs have the same problem on this > > machine !! > > > > Please advise ! > > > > Many thanks in advance. > > > > James T. Koerting > > > > KSD Germany > > [EMAIL PROTECTED] > > > > Murphy's Law: "Anything that can go wrong, will go wrong" > > Parkinson's Law: "Work expands to exceed available time" > > Koerting's Law: "Don't fight against these laws" > > > > ------------------------- The freeVSD Support List > > -------------------------- > > Subscribe: mailto:[EMAIL PROTECTED]?body=subscribe%20freevsd-support > > Unsubscribe: > > mailto:[EMAIL PROTECTED]?body=unsubscribe%20freevsd-support > > Archives: http://freevsd.org/support/mail-archives/freevsd-support > > ------------------------------------------------------------------ > > ----------- > > ------------------------- The freeVSD Support List -------------------------- > Subscribe: mailto:[EMAIL PROTECTED]?body=subscribe%20freevsd-support > Unsubscribe: mailto:[EMAIL PROTECTED]?body=unsubscribe%20freevsd-support > Archives: http://freevsd.org/support/mail-archives/freevsd-support > -------------------------------------------------------------------------- --- > ------------------------- The freeVSD Support List -------------------------- Subscribe: mailto:[EMAIL PROTECTED]?body=subscribe%20freevsd-support Unsubscribe: mailto:[EMAIL PROTECTED]?body=unsubscribe%20freevsd-support Archives: http://freevsd.org/support/mail-archives/freevsd-support -----------------------------------------------------------------------------
