Hi ,
I'm running kernel 2.6.22.18-vs2.3.0.32 (on x86_64), util-vserver: 0.30.214
I'm having trouble finding 'lost' processes attributed to guest.
Basically I have a guest with approx 9 processes (see below) yet
vserver-stat reports vastly different numbers, 286 after running for
a week or 60 for a freshly started guest.
Why are the numbers reported by vserver-stat and ps so different?
Where can I find more details on my machine to help me track down these
'lost processes'?
Also this issue only happens to some of my guests, on some of them
process usage reported by vserver-stat and ps match. Can anyone offer an
explanation?
Details...
Below is the output of vserver-stat for a troublesome guest,
A. When guest was discovered 'using too many processes'
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
221 286 1.7G 38.2M 0m09s60 0m09s16 8d20h10 aptcache
B. After a restart (vserver aptcache stop; vserver aptcache start)
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
221 60 717.9M 13M 0m00s88 0m00s88 0m55s06 aptcache
C. And after then running for almost a day
CTX PROC VSZ RSS userTIME sysTIME UPTIME NAME
221 95 1.6G 20.1M 0m01s31 0m00s91 21h44m04 aptcache
In all cases the actual proccesses reported by either "#ps aux" from
within the guest or "#vps aux" from the host were wildly different (see
below)
======================
root@aptcache:/# ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 5112 1968 ? Ss Mar12 0:04 /sbin/init
syslog 11627 0.0 0.0 12284 764 ? Ss 06:25 0:00
/sbin/syslogd -u syslog
root 15893 0.0 0.0 120 32 ? R+ 10:27 0:00
login
root 15920 0.0 0.0 16916 2024 pts/1 Ss 10:27 0:00
/bin/bash -login
root 16151 0.0 0.0 13984 1072 pts/1 R+ 10:46 0:00 ps aux
107 30636 0.0 0.0 1024944 6220 ? Ssl Mar12 0:01
/usr/sbin/apt-cacher-ng -c /etc/apt-cacher-ng
pidfile:/var/run/apt-cacher-ng/pid SocketPa
root 30644 0.0 0.0 36264 1240 ? Ss Mar12 0:00
/usr/sbin/sshd
root 30662 0.0 0.0 17792 832 ? Ss Mar12 0:00
/usr/sbin/cron
root 30671 0.0 0.0 51240 2788 ? Ss Mar12 0:00
/usr/sbin/apache2 -k start -DSSL
www-data 30673 0.0 0.0 50980 1936 ? S Mar12 0:00
/usr/sbin/apache2 -k start -DSSL
www-data 30676 0.0 0.0 274768 3424 ? Sl Mar12 0:00
/usr/sbin/apache2 -k start -DSSL
www-data 30679 0.0 0.0 274768 3400 ? Sl Mar12 0:00
/usr/sbin/apache2 -k start -DSSL
========================
OR
========================
# vps aux|grep aptcache
klog 11627 221 aptcache 0.0 0.0 12284 764 ? Ss
06:25 0:00 /sbin/syslogd -u syslog
root 16161 0 MAIN 0.0 0.0 5128 820 ? S+
10:48 0:00 grep aptcache
107 30636 221 aptcache 0.0 0.0 1024944 6220 ? Ssl
Mar12 0:01 /usr/sbin/apt-cacher-ng -c /etc/apt-cacher-ng
pidfile:/var/run/apt-cacher-ng/pid
SocketPath:/var/run/apt-cacher-ng/socket foreground:0
root 30644 221 aptcache 0.0 0.0 36264 1240 ? Ss
Mar12 0:00 /usr/sbin/sshd
root 30662 221 aptcache 0.0 0.0 17792 832 ? Ss
Mar12 0:00 /usr/sbin/cron
root 30671 221 aptcache 0.0 0.0 51240 2788 ? Ss
Mar12 0:00 /usr/sbin/apache2 -k start -DSSL
www-data 30673 221 aptcache 0.0 0.0 50980 1936 ? S
Mar12 0:00 /usr/sbin/apache2 -k start -DSSL
www-data 30676 221 aptcache 0.0 0.0 274768 3424 ? Sl
Mar12 0:00 /usr/sbin/apache2 -k start -DSSL
www-data 30679 221 aptcache 0.0 0.0 274768 3400 ? Sl
Mar12 0:00 /usr/sbin/apache2 -k start -DSSL
========================
~# vserver-info
Versions:
Kernel: 2.6.22.18-vs2.3.0.32
VS-API: 0x00020302
util-vserver: 0.30.214; Nov 1 2007, 03:33:19
Features:
CC: gcc, gcc (GCC) 4.2.3 20071014 (prerelease)
(Debian 4.2.2-3)
CXX: g++, g++ (GCC) 4.2.3 20071014 (prerelease)
(Debian 4.2.2-3)
CPPFLAGS: ''
CFLAGS: '-Wall -g -O2 -std=c99 -Wall -pedantic -W
-funit-at-a-time'
CXXFLAGS: '-g -O2 -ansi -Wall -pedantic -W
-fmessage-length=0 -funit-at-a-time'
build/host: x86_64-pc-linux-gnu/x86_64-pc-linux-gnu
Use dietlibc: yes
Build C++ programs: yes
Build C99 programs: yes
Available APIs: v13,net,v21,v22,v23,netv2
ext2fs Source: e2fsprogs
syscall(2) invocation: alternative
vserver(2) syscall#: 236/glibc
Paths:
prefix: /usr
sysconf-Directory: /etc
cfg-Directory: /etc/vservers
initrd-Directory: $(sysconfdir)/init.d
pkgstate-Directory: /var/run/vservers
vserver-Rootdir: /var/lib/vservers
Assumed 'SYSINFO' as no other option given; try '--help' for more
information.
====
thanks,
Jason
Received on Thu Mar 13 00:03:24 2008