Memory again
Stefan Schmidt
zaphodb at mandelbrot.zaphods.net
Thu Feb 10 17:07:45 UTC 2005
On 2005-02-10, Thomas Kinghorn [MTNNS -Rosebank] <thomask at mtnns.net> wrote:
> I have recently upgraded to bind 9.3.0
> max-cache-size 75M;
> Any ideas?
Doesn't work for me either, so...
Here's my workaround for my caching-only servers (Linux-only, sorry):
* * * * * /root/bin/named.restart.pl /var/named/var/run/named.pid
#!/usr/bin/perl -w
# restarts named via /etc/init.d/bind start if no pidfile and process
# named named present or if pidfile but /proc/$pid/status and process
# named named not present
use strict;
my $pidfile="";
if((defined $ARGV[0])&&($ARGV[0]=~/^[A-Za-z0-9\-\.\_\/]+$/)) {
$pidfile=$ARGV[0];
} else {
die("usage: named.restart.pl <path-to-pidfile>");
}
if(-e $pidfile) {
if(open PID,"<$pidfile") {
my $pid=<PID>;
close PID;
chomp $pid;
if(!-e "/proc/$pid/status") {
my @procs=`ps auxw 2>&1`;
if(!grep(/\/named /, at procs)) {
print STDERR "pidfile ok but process named not
found - restarting...";
unlink "$pidfile";
`/etc/init.d/bind start`;
}
}
} else {
die("ERROR: pidfile: \"$pidfile\" existed but unable to open for
reading - better luck next time!");
}
} else {
my @procs=`ps auxw 2>&1`;
if(!grep(/\/named /, at procs)) {
print STDERR "no pidfile or process named found - restarting..
.";
`/etc/init.d/bind start`;
} else {
`logger "process named running but no pidfile ;-( please fix
it."`;
}
}
Btw: If this resolver is a busy one, perhaps you should upgrade memory as my
resolvers consume around 258m RES with bind9.2 and 330m with bind8
Stefan
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