OpenStack Nova Compute Charm

  1. Bug #1780348
  2. Comment #5

Comment 5 for bug 1780348

Revision history for this message
James Troup (elmo) wrote : Re: [Bug 1780348] Re: default gc_thresh settings for Linux are too small

James Page <email address hidden> writes:

> Are:
>
> net.ipv4.neigh.default.gc_thresh1=1024
> net.ipv4.neigh.default.gc_thresh2=2048
> net.ipv4.neigh.default.gc_thresh3=4096
>
> or
>
> net.ipv4.neigh.default.gc_thresh1 = 16384
> net.ipv4.neigh.default.gc_thresh2 = 28672
> net.ipv4.neigh.default.gc_thresh3 = 32768
>
> sane changes to always make?

FWIW, we've been running with the first set of values on both internal
and customer clouds for a couple of years now without issue. We're
now running a customer cloud on the 2nd set of values.

I'm also subscribing field-medium to this bug as the current default
values caused a cloud-wide outage today and we really need to get them
bumped up for at least neutron-gateway.

--
James