> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 04, 2007 7:37 PM > To: vchkpw@inter7.com > Subject: Re: [vchkpw] authdaemond - authvchkpw memory use issue > > I have (had?) exactly the same problem. > > When I was using 0.57 my server (which is *very* busy) would run out of > RAM/swap about once every three months or so resulting in a fairly > nasty > situation which was easiest to resolve by just pushing the reset button > on > the machine (couldn't ssh in, console barely responded, ect). After a > few > weeks of unattended operation, courier-authlib would be consuming 2Gb > or > so of virtual memory. I settled on a cron job to restart it weekly and > have had zero problems since then. > > I've since upgraded to 0.59 but I haven't disabled the cronjob. I'd > rather > just let it restart weekly than have a problem with the machine. > > My machine is CentOS 4.5 running on an Intel Xeon 2.0Ghz (Northwood) in > a > Dell 1600SC, 2GB physical memory. > > - Nick Bright > > > I have a fairly new install of netqmail-1.05-r8 / courier-imap-4.0.6- > r2 / > > vpopmail-5.4.16. The system has ran fine except for two instances of > > memory > > usage (leak?). This system is setup on a Gentoo server according to > the > > guide located at: > > > > http://www.gentoo.org/doc/en/qmail-howto.xml > > > > courier-imap is configured with the following authentication: > > > > authmodulelist="authvchkpw" (located in > > /etc/courier/authlib/authdaemonrc) > > > > On both occasions the process list shows something similar to the > > following > > > > top - 07:19:19 up 67 days, 5:59, 1 user, load average: 0.09, 0.10, > 0.08 > > Tasks: 111 total, 1 running, 110 sleeping, 0 stopped, 0 zombie > > Cpu(s): 1.8% us, 0.7% sy, 0.0% ni, 97.2% id, 0.3% wa, 0.0% hi, > 0.0% > > si > > Mem: 1034092k total, 1007388k used, 26704k free, 11688k > buffers > > Swap: 1001464k total, 999832k used, 1632k free, 127600k > cached > > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > > 5279 root 15 0 353m 140m 408 S 0 13.9 0:47.04 > authdaemond > > 5276 root 15 0 353m 139m 68 S 0 13.8 0:45.59 > authdaemond > > 5278 root 15 0 349m 135m 408 S 0 13.4 0:45.86 > authdaemond > > 5277 root 15 0 349m 135m 20 S 0 13.4 0:46.17 > authdaemond > > 5275 root 15 0 356m 132m 20 S 0 13.2 0:46.32 > authdaemond > > > > > > As seen above my main memory and swap was in bad shape with > authdaemond > > processes consuming the bulk of the memory. Review of the logs does > not > > show > > any errors against authdaemond or authvchkpw. Memory usage appears to > > shoot up > > rapidly as this problem will manifest itself in less than a days time > > (it is not > > a gradual increase in memory usage). > > > > Any guidance on determining and/or fixing the root cause of the > > authdaemond > > memory issue would be welcome. The courier-imap mailing list directed > me > > here > > stating that the authvchkpw module is the likely culprit. > >
I would recommend upgrading your vpopmail to at least 5.4.18 (though there shouldn't be much reason not to upgrade to 5.4.20). I had quite a few problems with .16 myself. Once you've upgraded your vpopmail, remember to rebuild courier-authlib, and netqmail, and anything else that links against libvpopmail.a. Hope that helps, Tren
