<Mode = "clueless OE quoting"> From: "Binand Raj S." <[EMAIL PROTECTED]> On Monday 15 July 2002 10:39 pm, Sudhakar Chandra wrote: > 1. Take the machine into single user mode. > 2. Configure your MDA to deliver into user's Maildir repository. > 3. Mass convert existing mbox to Maildir using available scripts. > 4. Go into multi user mode.
"Thaths, why do you recommend taking the system down to single user mode? Isn't stopping the mail subsystem enough?" I prefer taking the system to single user mode to prevent users from logging in (via ssh/telnet) and mucking about with their mail locally. If all the mail users are virtusers, then all you need to do is stop pop/imap and smtpd. > It totally depends on which overhead - opening one mbox file and parsing it > or opening multiple Maildir files - is slower. IMO, both are slow when > dealing with especially huge folders. You might consider looking into "Is it? Consider a mailbox with 10,000 mails. With mbox, when the client does a STAT command, the POP server needs to open mbox, parse it, and then send the response. Whereas with maildirs, the server just needs to run stat() in a loop. Or if a single mail is requested, its serial no (in the STAT command) is mapped to the filename in Maildir/new, so a comparatively smaller file needs to be opened and sent across the network. Maybe CRLF translation requirement would make it necessary to open all files in a Maildir to be opened before their sizes can be determined." I still contend that it depends. The question is which process is faster: opening one file and parsing it or opening multiple files and doing minimal parsing. I say both processes are slow. "I'd like to know what your reasons are in saying both would be equally (?) slow when dealing with large mailboxes." I didn't say "equally" slow. I meant "relatively" slow. And I use 'depends' because for users with a small amount of mails, say 42, in thier mailbox mbox is faster. For users with a larger number of mails, say 1000, in their mailbox Maildir is faster. Of course all of this is pure theorizing on my part. I have no factual numbers to back up my claim. > Cyrus IMAP as well. It has a non-standard format of storing mail that is > sort of like Maildir. But the problem there would be user's can only read > mail through the IMAP (i.e you cannot use mutt locally on the machine to > read off /var/spool/mail or ~/Mail). "The problem with Cyrus would be one of migration - both to and from. Does it ship with tools that migrate mbox/Maildir to its database format? Or vice versa?" The non-standard format of Cyrus is what prevents me from using it. I personally run Courier. Thaths ------------------------------------------------------- This sf.net email is sponsored by: Jabber - The world's fastest growing real-time communications platform! Don't just IM. Build it in! http://www.jabber.com/osdn/xim _______________________________________________ linux-india-help mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/linux-india-help
