On Tue, Feb 08, 2011 at 01:30:59AM -0800, Philip Ong Jr. wrote: > I've set the logging level to debug and can see messages of expiring > mounts in /var/log/messages...but when I check /etc/mtab or /proc/mounts > or df, i can still see them there. Any ideas if this is a known issue or > if I can give more info than below?
Out of curiosity... are these direct or indirect mounts? We're seeing an issue where our huge maps served from LDAP are seeing indirects not umounting while logging expires just fine, but the direct maps are working great. I believe a co-worker has replicated this exact same behavior with local files based maps too though, so pretty sure it's not really related to LDAP at all, but we've found using LDAP helped clear out a lot of old issues we had a few years ago related to the hashing bits. I've even done network sniffing while doing a kill -USR1 and the automount daemon opens new sockets for each indirect (our homedirs) path it wants to expire, but there never is any actual network traffic sent across the wire. Even better, the sockets stay stuck in ESTABLISHED for a long time. Some more USR1/expires and/or HUPs can help clear is, or I just run a script that does an fuser then umount on unused homedirs and that flushes the ports out. When the ports pile up to >300 or so, you start getting NFS failures with syslog showing "couldn't read superblock." Oh, and when I say huge maps.. I mean it. We're >10k direct mounts and I don't know how many indirect mounts, but it's even more then that. -- Mike Marion-Unix SysAdmin/Staff IT Engineer-http://www.qualcomm.com Antonio: "It's no fair. Some men drink deep from the fountain of life, while Antonio takes one sip and it goes down the wrong pipe!" _______________________________________________ autofs mailing list autofs@linux.kernel.org http://linux.kernel.org/mailman/listinfo/autofs
