From: Luiz Alfredo Baggiotto (luiz@pucrs.br)
Date: Wed Mar 09 2005 - 16:03:30 EST
Hi, Yann
Thanks for the fastly response. :-)
The problem is that if I only stop/start the daemon, the file descriptors of
the system are used. Then, I was write a script to restart the daemon and
automatically change the plimit value:
PID=`cat /usr/local/var/run/slapd.pid`
restart)
echo "Finalizando OpenLDAP (slapd)..."
kill -14 $PID
cp -f /dev/null /usr/local/var/run/slapd.pid
sleep 2
echo "Inicializando OpenLDAP (slapd)..."
echo
/usr/local/libexec/slapd -u ldap -g ldap -h "ldaps:///
ldap:///"
sleep 1
PID=`cat /usr/local/var/run/slapd.pid`
/usr/bin/plimit -n 16384,65536 $PID
;;
The problem is that if the reboot will effectivelly solve the problem.
Theorically, it will make the same of the 'plimit -n', I think.
Thanks again!
> -----Mensagem original-----
> De: yann geneste [mailto:ygeneste@hotmail.com]
> Enviada em: quarta-feira, 9 de margo de 2005 17:51
> Para: Luiz Alfredo Baggiotto
> Assunto: RE: Urgent: warning: cannot open /etc/hosts.allow:
> Too many open files
>
> Hi,
> Did you stop/start Ldap after having changed files descriptors limit ?
> I don't know the -n option but you may need to reboot to
> ensure the problem still here !
>
> Cordialement/Regards
> Yann
>
> H
>
> >From: "Luiz Alfredo Baggiotto" <luiz@pucrs.br>
> >To: <sunmanagers@sunmanagers.org>
> >Subject: Urgent: warning: cannot open /etc/hosts.allow: Too
> many open
> >files
> >Date: Wed, 9 Mar 2005 17:35:07 -0300
> >
> >Dear admins
> >
> >I4m having a terrible problem.
> >Recently, I was installed a openldap software in a Sun
> Solaris 9 box.
> >Initial
> >tests are ok, but now, when I was migrated my users to this system,
> >frequently the ldap daemon stops to work. In the logs, I was
> saw this
> >message:
> >
> >warning: cannot open /etc/hosts.allow: Too many open files
> >
> >Restarting the slapd daemon, the system works again, but with a
> >increment of the network demand, the error goes back and I need to
> >restarts again and again and again...
> >I searched about it in the net and I discovered something.
> Apparently,
> >the problem is that the file descriptors of the system is very low
> >(256). I was used the 'plimit' command to view the
> information of my slapd process:
> >
> ># ps -ef | grep slapd
> > ldap 10708 1 0 16:34:00 ? 0:13
> /usr/local/libexec/slapd -u
> >ldap -g ldap -h ldaps:/// ldap:///
> ># plimit -k 10708
> >10708: /usr/local/libexec/slapd -u ldap -g ldap -h
> ldaps:/// ldap:///
> > resource current maximum
> > time(seconds) unlimited unlimited
> > file(kbytes) unlimited unlimited
> > data(kbytes) unlimited unlimited
> > stack(kbytes) 8192 unlimited
> > coredump(kbytes) unlimited unlimited
> > nofiles(descriptors) 256 65536
> > vmemory(kbytes) unlimited unlimited
> >
> >Well, the recomendation is to include this lines in /etc/system and
> >reboot the
> >machine:
> >
> >* set hard limit on file descriptors
> >set rlim_fd_max = 4096
> >* set soft limit on file descriptors
> >set rlim_fd_cur = 1024
> >
> >The problem is that to get a time to reboot the server. Then, I was
> >discovered (in the plimit man) the option -n, to set this
> daemon option
> >"on the fly":
> >
> > -n soft,hard
> > Set file descriptor limits (no default unit).
> >
> >I tried this:
> >
> ># plimit -n 16384,65536 10708
> ># plimit -k 10708
> >10708: /usr/local/libexec/slapd -u ldap -g ldap -h
> ldaps:/// ldap:///
> > resource current maximum
> > time(seconds) unlimited unlimited
> > file(kbytes) unlimited unlimited
> > data(kbytes) unlimited unlimited
> > stack(kbytes) 8192 unlimited
> > coredump(kbytes) unlimited unlimited
> > nofiles(descriptors) 16384 65536
> > vmemory(kbytes) unlimited unlimited
> >
> >Well, I was thinking the problem is solved, but has occured
> again, in
> >the same circunstances!!!
> >Then, I ask: did anyone around had the same problem or
> something like it?
> >Are
> >there some tip? Because if the 'plimit' works in the similar
> way of the
> >/etc/system directive, then seems the problem will be just
> the same...
> >:-( In this case, I will need to recompile OpenLDAP without
> tcpwrapper
> >support and I don4t want to make it.
> >Thanks A LOT in advance for any tip
> >
> >Luiz
> >_______________________________________________
> >sunmanagers mailing list
> >sunmanagers@sunmanagers.org
> >http://www.sunmanagers.org/mailman/listinfo/sunmanagers
> i
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