On Sun, 2009-03-01 at 18:10 +0900, [email protected] wrote: > William Grant: > > localhost$ sudo mount -t aufs -o br:/tmp/src/aufstest=rw,udba=inotify > > none dst > > > > localhost$ ls -l /tmp/src/aufstest /tmp/dst > > /tmp/dst: > > total 4 > > -rw-r--r-- 1 william william 5 2009-03-01 19:58 blah > > > > /tmp/src/aufstest: > > total 4 > > -rw-r--r-- 1 william william 5 2009-03-01 19:59 blah > > Why these timestamps are different?
I noticed that just after I sent this... I presume it was from the strange caching behaviour that occurs even across remounts. I truncated and recreated the file while it was unmounted. > How did you create the file blah? echo "blah" > /export/home/aufstest/blah > Is the system clock on your server and client correct? The clocks are within a few milliseconds of each other. > > server$ echo "blah" >> /export/home/aufstest/blah > > You did it on server? I did. > UDBA option is not for the actions on NFS server. If that's not supported, can I instead turn off the caching entirely? > Then we have to check the mount options for /tmp/src/aufstest too. > How is your attribute cache option? It does eventually (after over 20 seconds, in one trial) update with 'noac' set on the NFS mount. But I don't think attribute caching can be the problem, as the stats on the NFS mount are fine - it's just the aufs mount that is out of date. > > localhost$ ls -l /tmp/src/aufstest /tmp/dst > > /tmp/dst: > > total 4 > > -rw-r--r-- 1 william william 5 2009-03-01 19:58 blah > > > > /tmp/src/aufstest: > > total 4 > > -rw-r--r-- 1 william william 10 2009-03-01 19:59 blah > > If you execute "ls -l /tmp/src/aufstest /tmp/dst", is the second output > still incorrect? It's /tmp/dst (the first output) that is the aufs mount. That's the one that is incorrect. ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H
