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Running out of filedescriptors

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Hello Squid friends.

Recently I found in my cache.log this message:
WARNING! Your cache is running out of filedescriptors

I found in the same file that Squid was using 1024 filedescriptors
I looked for that problem in the forum and FAQ and these are my steps to resolve that:

(I have Red Hat Enterprise 3 Update 8, kernel 2.4.21-47.ELsmp, I have Squid installed
from squid-2.5.STABLE14-1.FC5.i386.src.rpm)

Before compile src.rpm I changed these values:
ulimit -HSn 8192

In the compilation I found:

   checking for strerror... yes
   checking for initgroups... yes
   checking Default FD_SETSIZE value... 8192
   checking Maximum number of filedescriptors we can open... 8192
   checking Default UDP send buffer size... 65535
   checking Default UDP receive buffer size... 65535

I reinstalled Squid with the new rpm:
rpm -Uvh --force squid-2.5.STABLE14-1.FC5.i386.rpm Squid is installed fine, the binary has a new date: -rwxr-xr-x 1 root root 745108 Sep 24 08:25 /usr/sbin/squid

I changed the /etc/rc.d/init.d/squid start section:
echo -n "Asignando 8192 FD y otros valores"
   echo 1024 32768 > /proc/sys/net/ipv4/ip_local_port_range
   echo 1024 > /proc/sys/net/ipv4/tcp_max_syn_backlog
   echo 8192 > /proc/sys/fs/file-max
   ulimit -HSn 8192

   echo -n $"Starting $prog: "
   $SQUID $SQUID_OPTS 2> /dev/null
   RETVAL=$?

I started Squid but in cache.log I found again:
With 1024 file descriptors available Which is the missing or bad step?

I was reading the spec for squid-2.5.STABLE14-1.FC5.i386.src.rpm and I found that file has a patch for filedescriptors (option --enable-fd-config), this is the problem or solution?

My squid -v:
Squid Cache: Version 2.5.STABLE14 configure options: --host=i686-redhat-linux-gnu --build=i686-redhat-linux-gnu --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --exec_prefix=/usr --bindir=/usr/sbin --libexecdir=/usr/lib/squid --localstatedir=/var --datadir=/usr/share --sysconfdir=/etc/squid --enable-poll --enable-snmp --enable-removal-policies=heap,lru --enable-storeio=aufs,coss,diskd,null,ufs --enable-ssl --with-openssl=/usr/kerberos --enable-delay-pools --enable-linux-netfilter --with-pthreads --enable-ntlm-auth-helpers=SMB,winbind,fakeauth --enable-external-acl-helpers=ip_user,ldap_group,unix_group,wbinfo_group,winbind_group --enable-auth=basic,digest,ntlm --enable-digest-auth-helpers=password --with-winbind-auth-challenge --enable-useragent-log --enable-referer-log --disable-dependency-tracking --enable-cachemgr-hostname=localhost --enable-underscores --enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SMB,YP,getpwnam,multi-domain-NTLM,SASL,winbind --enable-cache-digests --enable-ident-lookups --with-large-files --enable-fd-config
   --enable-follow-x-forwarded-for
Thanks for your help

Carlos

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