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Hi list,
we had problems on different kernel versions since vserver patch 2.3.
We had the problem, that load runs in a view seconds into great
dimensions:
top - 21:11:53 up 23 days, 5:55, 2 users, load average: 1092.35,
530.76, 212.88
Tasks: 5614 total, 3 running, 5531 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.6%us, 8.2%sy, 0.0%ni, 83.2%id, 4.6%wa, 0.0%hi,
0.3%si, 0.0%st
Mem: 74376860k total, 73832132k used, 544728k free, 4835704k buffers
Swap: 140624968k total, 4019584k used, 136605384k free, 24147056k cached
As you can see "wa" is not very high.
At a load of 500 Apache and Co stop working and delivering webpages.
Load before it explodes is around 3 - 5.
On shell in host system you can work as at load levels like 0.50, but
vserver operations aren't possible: vserver XXX stop does not take any
affect.
dmesg is also empty.
We're using the following versions:
# vserver-info
Versions:
Kernel: 2.6.31.7-vs2.3.0.36.27
VS-API: 0x00020305
util-vserver: 0.30.216-pre2864; Nov 29 2009, 00:39:14
Features:
CC: gcc, gcc (Debian 4.3.4-6) 4.3.4
CXX: g++, g++ (Debian 4.3.4-6) 4.3.4
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
crypto api: nss
python bindings: no
use library versioning: yes
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
At Kernel 2.6.29.6-vs2.3.0.36.14 this also happend. The hardware is
also not the thing, because this happens on different architectures.
To get the server back online, you have to reset the hardware, reboot
and co not doing anything.
Best regards
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Received on Mon Jan 18 20:29:21 2010