I have been working with user to have them cut down on their folder list. the fs is ext3 and even when moving the user to own server, etc I get the slowdowns and email hangs. Thought it was a connection issue so I brought the users machine in to the DC with the same issues. It is just "weird"
Jeff N. On Dec 7, 2009, at 2:00 PM, Timo Sirainen wrote: > On Mon, 2009-12-07 at 11:24 -0800, Jeffrey Nikoletich wrote: >> Also is there is hard limit on the amount of folders dovecot can handle? I >> have a user who has over 3000 folder (including subfolders) that is having >> issues with delays in loading, moving, and deleting messages. > > Are you sure those problems are even caused by the number of folders? > There are only two issues I can think of: > > 1) Client LISTs all folders, which can take a while to download. Clients > don't usually do this very often. > > 2) Filesystem is being slow. If you're using filesystem with directory > indexes (and most are nowadays indexed) I don't think 2) should be much > of a problem. And I think even without indexes OS would have cached the > directory entries in a way that accessing the same directory would > always be fast. > > So have you looked at other potential problems, like if deleting > messages is slow and deletion is done by move-to-Trash, does the Trash > have tens of thousands of messages? > > And at least ext3 already limits the number of folders that can be > created with Maildir++ to 31998. That's probably good enough as a folder > quota. :) >
