On Wed, 2008-03-19 at 22:06 -0700, Jim Carter wrote: > Today I upgraded one of my three DNS servers, the first listed in > /etc/resolv.conf, and until I got it back on the air, autofs mounting > was glacial. To investigate, on my own workstation I prepended an IP > address not assigned to any machine, and reproduced the problem. The > symptom is that automount takes 40 to 45 seconds, while other actions > involving DNS or hostnames take around 5 seconds, as expected: > "dig math.ucla.edu. soa" and "mount -t nfs tupelo:/h1 /mnt" were > tested. The command to test automounting was "ls /net/$HOST/$DIR/.", > in this case, "ls /net/serval/h1/." but I use a different host each > time to make sure DNS resolution happens. We use nscd, but the result > is the same whether or not it is running.
Not sure about the 5 seconds, I thought the timeout was longer, but I think autofs is doing DNS lookus for the same name more often than it needs to. I'll have a look and see if I can put something together for you to test. Ian _______________________________________________ autofs mailing list [email protected] http://linux.kernel.org/mailman/listinfo/autofs
