Re: cyrus 2.5 imap idle/stuck connections (DOS like)
Wolfgang Breyha <[email protected]>
| Newsgroups | gmane.mail.imap.cyrus |
|---|---|
| Message-ID | <[email protected]> |
Heiler Bemerguy via Info-cyrus wrote on 07/03/2019 16:30:
> My "man imapd.conf" doesn't list this option at all. I think my Cyrus
> 2.5.10 is older than it..
Yes. It appeared in 2.5.11 according to my build environment.
But there already was the option
timeout: 30
before. So every connection was closed by default after 30 minutes if there
was no activity.
"imapidletimeout" uses the value of "timeout" as upper limit default as well.
> But I've added it to the .conf anyway. Won't hurt if it doesn't exist
> yet, right? lol
I currently don't remember if imapd ignores unknown options or fails on startup.
But maybe the better option is to use
tcp_keepalive: yes
anyway.
We had "dead" connections as well before imapidletimeout existed and I was
able to get rid of them by activating keepalives to trigger the "timeout: 30"
check.
Greetings, Wolfgang
--
Wolfgang Breyha <[email protected]> | https://www.blafasel.at/
Vienna University Computer Center | Austria
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