[collectd] Bugreport: Collectd is rising load dramatically

[Johannes oetzi Ott]

Hi there,

I have serious Problems with collectd on our Browsergameserver.

We have a normal load average about 1.0without running collectd, which is 
even high, but when starting collectd the load rises up to a constant level 
above 3.0 and an average of about 9.0. Yesterday load  wents up to about 60.0 
which really crashed the server. After reboot and an again load average of 6.0
immedatially after that I decided to stop one daemon after the other. 
When stopping collectd the load went below 1.0 so I started all other daemons
I have stopped before. The load stayed below 1.0.

I watched the load for one day now. It was not higher than 1.3.

Then I started collectd one hour ago and the load is again constant above 4.5

So the problem is definitly with collectd.

I think that there is a problem with amd64 dualcore cpu of the server.

Here some facts, which might be interesting for you:

collectd 3.10.1, http://collectd.org/
by Florian octo Forster <octo at verplant.org>

root at rommie:~ # uname -a
Linux rommie 2.6.8-12-amd64-k8-smp #1 SMP Sat Jul 15 08:53:03 UTC 2006 x86_64 GNU/Linux

root at rommie:~ # cat /proc/cpuinfo 
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 35
model name      : Dual Core AMD Opteron(tm) Processor 165
stepping        : 2
cpu MHz         : 1795.555
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext lm 3dnowext 3dnow pni
bogomips        : 3547.13
TLB size        : 1088 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp

processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 35
model name      : Dual Core AMD Opteron(tm) Processor 165
stepping        : 2
cpu MHz         : 1795.555
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext lm 3dnowext 3dnow pni
bogomips        : 3588.09
TLB size        : 1088 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp


root at rommie:~ # cat /etc/collectd/collectd.conf

# Config file for collectd(1).
#               
# Some plugins need additional configuration and are disabled by default.
# Please read collectd.conf(5) for details.
                
Mode Local      
                
LoadPlugin apache
LoadPlugin battery
LoadPlugin cpu
LoadPlugin df
LoadPlugin disk
LoadPlugin load
LoadPlugin memory
LoadPlugin mysql
LoadPlugin ntpd
LoadPlugin ping
LoadPlugin processes
LoadPlugin swap
LoadPlugin traffic
LoadPlugin users

<Plugin apache>
   URL http://localhost/server-status?auto
</Plugin>

<Plugin ntpd>
   Host localhost
   Port 123
</Plugin>

<Plugin mysql>
   Host localhost
   User XXX
   Password XXX
   Database XXX
</Plugin>

<Plugin ping>
   Host t-online.de
   Host arcor.de
   Host strato.de
   Host irc.gamesurge.net
   Host recall-revolutions.de
</Plugin>

<Plugin traffic>
   Interface eth0
   IgnoreSelected false
</Plugin>


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