Howdy list,
Brief environment description:
FreeBSD 4.8-RELEASE
Apache 1.3.28
sqwebmail-3.5.3.20030629
Have any of you seen anything like this before?
I upgraded my Apache server to 1.3.28 from 1.3.27 this last
Friday, and ever since then I've been getting tons of zombie
sqwebmail processes. I had 36 zombies when I came into work
this morning, and since shutting down the apache server
(which seems to effectively kill the zombies) I have 6 more...
Here's a 'pstree' output snippet to show you what I mean:
------------------------------------------------------------------------------
|-+- 98701 root /usr/local/apache/bin/httpd -DSSL
| |-+- 00394 www /usr/local/apache/bin/httpd -DSSL
| | \--- 98933 vpopmail (sqwebmail)
| |--- 98717 www /usr/local/apache/bin/httpd -DSSL
| |--- 98718 www /usr/local/apache/bin/httpd -DSSL
| |--- 98719 www /usr/local/apache/bin/httpd -DSSL
| |--- 98720 www /usr/local/apache/bin/httpd -DSSL
| |-+- 98721 www /usr/local/apache/bin/httpd -DSSL
| | \--- 03992 vpopmail (sqwebmail)
| |-+- 98753 www /usr/local/apache/bin/httpd -DSSL
| | \--- 05857 vpopmail (sqwebmail)
| |-+- 98767 www /usr/local/apache/bin/httpd -DSSL
| | |--- 01919 vpopmail (sqwebmail)
| | \--- 43609 vpopmail (sqwebmail)
| |--- 98768 www /usr/local/apache/bin/httpd -DSSL
| \-+- 99043 www /usr/local/apache/bin/httpd -DSSL
| \--- 30049 vpopmail (sqwebmail)
------------------------------------------------------------------------------
Here's my 'top' header:
------------------------------------------------------------------------------
last pid: 18071; load averages: 3.00, 7.36, 5.57
up 55+00:41:47 12:58:05
111 processes: 3 running, 102 sleeping, 6 zombie
CPU states: 73.1% user, 0.0% nice, 18.5% system, 1.5% interrupt, 6.9% idle
Mem: 80M Active, 622M Inact, 168M Wired, 28M Cache, 112M Buf, 106M Free
Swap: 2048M Total, 5000K Used, 2043M Free
------------------------------------------------------------------------------
Note the 6 zombies. And here's what happens when I try to kill one
of them:
------------------------------------------------------------------------------
[12:[EMAIL PROTECTED]:[/usr/local/vpopmail/domains/wingnet.net]# kill 01919
1919: No such process
[12:[EMAIL PROTECTED]:[/usr/local/vpopmail/domains/wingnet.net]#
------------------------------------------------------------------------------
And here's my Apache info:
------------------------------------------------------------------------------
Server Version: Apache/1.3.28 (Unix) PHP/4.3.3 mod_perl/1.28 mod_ssl/2.8.15
OpenSSL/0.9.7b
Server Built: Sep 19 2003 17:39:24
API Version: 19990320:15
Run Mode: standalone
User/Group: www(80)/80
------------------------------------------------------------------------------
And again, killing the apache server effectively kills the zombies.
Here's another ps output so you can see the memory and CPU percentages and
such:
------------------------------------------------------------------------------
USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND PPID
vpopmail 98933 2.0 0.0 0 0 ?? Z 12:28PM 0:00.00 (sqwebmail) 394
vpopmail 5857 0.0 0.0 0 0 ?? Z 12:40PM 0:00.00 (sqwebmail) 98753
vpopmail 1919 0.0 0.0 0 0 ?? Z 9:47AM 0:00.00 (sqwebmail) 98767
vpopmail 30049 0.0 0.0 0 0 ?? Z 10:35AM 0:00.00 (sqwebmail) 99043
vpopmail 43609 0.0 0.0 0 0 ?? Z 10:55AM 0:00.00 (sqwebmail) 98767
vpopmail 3992 0.0 0.0 0 0 ?? Z 12:36PM 0:00.00 (sqwebmail) 98721
------------------------------------------------------------------------------
Any ideas? This is very strange...
--
Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v) 423-559-5145 (f)
http://www.wingnet.net
