On Tue, 2008-12-23 at 14:23 +0000, Mark Zealey wrote:
Dec 23 14:02:15 mail9 dovecot: pipe() failed: Too many open files
dovecot master process has opened too many files.
The ulimit for the number of open files on these servers has remained unchanged at 8192
Should be enough..
and there are no warnings about too few fd's on dovecot startup.
I'm not completely sure that the warning check is correct. I think it should be though.
There weren't amazing numbers of imap sessions open at the time (only something like 400-500; we've had 1.5k in the past), so I suspect this is a regression between 1.1.6 and 1.1.7 where you've got a leak of fd's ?
Sounds like a leak, but I doubt it was a regression. Probably you just hit a rare condition.
If it happens again I'll try and get a snapshot of the fd's open by the master dovecot process.
Yes, that would help figuring it out.