Gene Steinberg wrote: > Folks, I welcome your insights into a strange issue that may involve a > memory leak, but certainly involves a repeatable server crash. > > I have Dovecot installed as part of a cPanel installation. I think > they're using 1.1.6 rather than the latest version, because they claim > to need to test compatibility with their server software before > deploying these components. > > In any case, I set up the latest cPanel on a 64-bit server running two > quad-core AMD Opteron 2352 processors and CentOS 5.2 (64-bit). > > When I switch from the default Courier IMAP server to Dovecot, within 3 > to 8 hours, IMAP resource usage will spike and ultimately the server > will freeze. Restarting and returning to Courier solves the problem. > > The symptom is see in Top is that IMAP consumes 100% of memory, and the > normal load (ranging from .05 to 1.50) soars to unheard of heights, such > as 25, 50. Nothing will work on the server, which forces me to restart. > > Our email load is reasonably light, and all the sites on the server are > mine. > > I have done fresh installs of cPanel and fresh updates without a > solution. My server admin and cPanel support both appear stumped over > this issue. > > While I am hesitant to install a newer version of Dovecot > independently, I wanted to know if you're aware of any such > difficulties. Since I'm back with Courier now, I presume logs aren't > available (if they are let me know). But I never have problems with > Courier, ever. I had Dovecot running fine with cPanel on a 32-bit > Core2Duo server I use strictly for backup. > > I appreciate the lightweight footprint of Dovecot and its performance > advantages, but if I can't get it to work on my server, I can't use it. > > Now maybe your newer versions solve this. Regardless, please provide > whatever insights you can that might assist in tracking down this issue. > > Peace, > Gene Steinberg >
Hello Does the debug mode give something understandable ?
