> This may not be too important for anyone any more, I had some weirdness > with quotas wehn upgrading from 2.1.15 to 2.2.12. > > At first I thought that all my quotas were somehow lost during the > upgrade. Originally I thought this might have been because I > inadvertently left the Cyrus master daemon turned on when I first > rebooted the system back to multi-user mode. It seemed as though the > quotas.db file, was completely empty after the aborted run of the new > version prior to DB conversion. Hmmm.... hang on, maybe that's also > because the old version had been configured to use quotalegacy by > default, which are the individual files in /var/quota/?/user.*; but the > new version was configured to use a skiplist DB by default, and the > actual setting was never present in the config file. > > Not thinking about the quotalegacy issue (because I was too tired) I > simply re-assigned the quotas manually using the cyradm interface, shut > down master, then used "quota -f" to recover the usage numbers. However > during recovery I noted some very strange things happening with the > "quota -f" runs. The first time I ran "quota -f" without any mailboxes > then it seemed to whack the usage numbers by a factor of two (I can't > remember which way) on the mailboxes where I had already done a test run > of "quota -f user.USER". I saw things like that more than once and I never figured out what exactly has triggered it and which versions of cyrus were affected. However, I found a general rule which seems important at least it was so when I last had a problem with quotas with 2.3.7: Always make sure that your metadata is clean before using quota -f. If in doubt, run reconstruct first. This seems to also be the case after some upgrades. So for me I'm now always doing a reconstruct before a quota -f. This can takes dozens of hours on large systems but better than having broken quotas for such a long period. Simon ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
