Re: High CPU load

[Tapio Haapala]

I had same kind problem some years a go. Problem was that I accidentaly 
miscofigure bgp session so that one of peers was connected to ip what 
was announced via other hop. That caused route flapping and full 
internet table flapping at that router - 100% cpu load and 10-100Mbps 
bgp traffic.


8.4.2015, 13:18, Simone Morandini kirjoitti:

Hello list,

we are running BIRD on our IXP peering platform with no problems since 
quite a while now.
We need to activate a new peer which is expected to announce a 
considerable amount of prefixes (~100k), and the first try resulted in 
having nearly 100% cpu load, ~60-70% for BIRD and the remaining for 
syslog. The machine was hardly manageable, so after a few minutes we 
had to disable the peer and restart the deamon.


The current settings actually make BIRD log everything:
log /var/log/bird.log all;
log syslog all;

so I guess we could start by modifying it: any advice on this?
Would you suggest something more, in order to avoid having again a 
high cpu load?


Thanks in advance,
Simone.



--
Tapio Haapala
F-Solutions Oy
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skype burner-

High CPU load

[Simone Morandini]

Hello list,

we are running BIRD on our IXP peering platform with no problems since 
quite a while now.
We need to activate a new peer which is expected to announce a 
considerable amount of prefixes (~100k), and the first try resulted in 
having nearly 100% cpu load, ~60-70% for BIRD and the remaining for 
syslog. The machine was hardly manageable, so after a few minutes we had 
to disable the peer and restart the deamon.


The current settings actually make BIRD log everything:
log /var/log/bird.log all;
log syslog all;

so I guess we could start by modifying it: any advice on this?
Would you suggest something more, in order to avoid having again a high 
cpu load?


Thanks in advance,
Simone.