On Wed, 17 Sep 2008, Jeff Moyer wrote: > Joe Pruett <[EMAIL PROTECTED]> writes: > >>>> well, it's a production box and only seems to show the problem at boot >>>> time. from looking at the logs, i think this is the underlying >>>> culprit: >>>> >>>> Sep 17 09:18:08 hyperion kernel: RPC: Can't bind to reserved port (98). >>>> Sep 17 09:18:08 hyperion kernel: RPC: can't bind to reserved port. >>>> Sep 17 09:18:08 hyperion kernel: RPC: error 5 connecting to server >>>> jupiter.spiretech.com >>>> Sep 17 09:18:08 hyperion kernel: RPC: Can't bind to reserved port (98). >>>> Sep 17 09:18:08 hyperion kernel: RPC: can't bind to reserved port. >>>> Sep 17 09:18:08 hyperion kernel: RPC: error 5 connecting to server >>>> jupiter.spiretech.com >>> >>>> that is from the client trying to talk to the server. >>> >>> That's strange. Errno 98 is EADDRINUSE. So, this means that you cycled >>> through the entire port range and all of the ports were bound. Do you >>> do a lot of mounts upon boot? Can you try tweaking sunrpc.min_resvport >>> and sunrpc.max_resvport? Max can't be more than 1023. Try pushing min >>> down to 500 or so. >> >> i have run into this kind of problem in the past (running out of >> privileged ports). i found some code in glibc that seemed to be the >> biggest problem and never got around to trying to fix it. i'll look >> at what my current settings are and see about tweaking them. > > Details would be welcome. The biggest offender we found was that the > portmapper interfaces would use reserved ports. That is simply not > necessary, and those issues have been fixed in autofs and mount.nfs. In > fact, we've got regression tests that make sure that this is the case.
since i had my hang last night i have dug back into this. the big culprit is getgrouplist (or so it seems) that opens the group.byname map with a yp all call and it does that from a privileged port. watching my mail server, i see it burn through priv ports at quite a rapid clip (5 per second or so). i am going to see why it doesn't use the netid map. it could just be glibc not having that feature. _______________________________________________ autofs mailing list autofs@linux.kernel.org http://linux.kernel.org/mailman/listinfo/autofs
