Hi folks! I converted some of the spools on my mail server from maildir to mdbox. It went smoothly and the performance has been great. However, I have two questions regarding the process. First, I failed to notice the fairly low default mdbox_rotate_size, and I changed it in dovecot.conf after the migration. Is it possible to somehow make that change retroactive, to coalesce the couple thousand "storage/m.*" files that are anywhere from a few hundred bytes up to a few megabytes, into a smaller number of larger files, without re-doing the migration? Second, I'd like to delete the old maildir files and directories to reclaim the space in the filesystem, but it's not clear to me which ones I can safely delete, i.e. ones upon which my new mdbox-based spools no longer depend. I know maildir uses new, tmp, and cur directories, but in the spool directory there are also files like dovecot-uidlist, dovecot-uidvalidity, dovecot.index.cache, dovecot.index.log, dovecot.mailbox.log, as well as separate directories for each of my mail folders containing their own new, tmp, and cur directories and their own dovecot* files. Can someone offer some guidance regarding which ones I can safely remove? Thanks, -Dave -- Dave McGuire, AK4HZ New Kensington, PA
Hi there ! Please tell how did you do the migration ? I tried to do this with dsync and performance was far from 'smooth and great'. 2017-09-29 0:54 GMT+05:00 Dave McGuire <mcguire at neurotica.com>:> > Hi folks! I converted some of the spools on my mail server from > maildir to mdbox. It went smoothly and the performance has been great. > However, I have two questions regarding the process. > > First, I failed to notice the fairly low default mdbox_rotate_size, > and I changed it in dovecot.conf after the migration. Is it possible to > somehow make that change retroactive, to coalesce the couple thousand > "storage/m.*" files that are anywhere from a few hundred bytes up to a > few megabytes, into a smaller number of larger files, without re-doing > the migration? > > Second, I'd like to delete the old maildir files and directories to > reclaim the space in the filesystem, but it's not clear to me which ones > I can safely delete, i.e. ones upon which my new mdbox-based spools no > longer depend. I know maildir uses new, tmp, and cur directories, but > in the spool directory there are also files like dovecot-uidlist, > dovecot-uidvalidity, dovecot.index.cache, dovecot.index.log, > dovecot.mailbox.log, as well as separate directories for each of my mail > folders containing their own new, tmp, and cur directories and their own > dovecot* files. Can someone offer some guidance regarding which ones I > can safely remove? > > Thanks, > -Dave > > -- > Dave McGuire, AK4HZ > New Kensington, PA
On 09/28/2017 04:00 PM, ????? ????? wrote:> Hi there ! Please tell how did you do the migration ? I tried to do > this with dsync and performance was far from 'smooth and great'.I used dsync, and had no difficulties. Here is an excerpt from my notes: -------------------------------------------- To change mail spool format for user at domain: Change spool type in dovecot.conf or in database, making note of original (current) spool type. Then: dsync -u "user at domain" mirror "spooltype:/spool/location" dsync -u "user at domain" mirror "spooltype:/spool/location" (repeat, to pick up any changes since first run) -------------------------------------------- -Dave -- Dave McGuire, AK4HZ New Kensington, PA