I'm learning about vagrant and puppet. When I use the vagrant lucid32 (Ubuntu 10.04), puppet seems very slow. I've fixed the fqdn problem (question 7780322) but it's still very slow.
I've traced (part of) the problem to facter. Asking for ipaddress is very quick, but ipaddress_eth0 takes 20 seconds:
root@a:/# time facter ipaddress
10.0.2.15
real 0m0.031s
user 0m0.024s
sys 0m0.004s
root@a:/# time facter ipaddress_eth0
10.0.2.15
real 0m20.126s
user 0m0.080s
sys 0m0.020s
root@a:/#
Looking for ipaddress_lo is also slow.
Can anyone help me with a solution or a suggestion for how to debug this? I'm new to Ruby, but willing to learn.
Thanks.
Problem was that arp -a runs very slowly.
vagrant@lucid32:~$ time arp -a
? (10.0.2.3) at 52:54:00:12:35:03 [ether] on eth0
? (10.0.2.2) at 52:54:00:12:35:02 [ether] on eth0
real 0m20.022s
user 0m0.004s
sys 0m0.000s
vagrant@lucid32:~$
I assume that this is a problem with some combination of virtualbox (4.1.12_77245), host-only networking, ubuntu 10.04, and windows 7 host OS.
As a workaround, assuming that I can learn a bit about puppet without it knowing my mac addresses, I replaced line 7 of /opt/ruby/lib/ruby/gems/1.8/gems/facter-1.6.0/lib/facter/arp.rb as follows:
require 'facter/util/ip'
Facter.add(:arp) do
confine :kernel => :linux
setcode do
### output = Facter::Util::Resolution.exec('arp -a') # disable for slow arp
output = "" ### return a blank, rather than the real (but slow) arp
if not output.nil?
arp = ""
output.each_line do |s|
if s =~ /^\S+\s\S+\s\S+\s(\S+)\s\S+\s\S+\s\S+$/
arp = $1.downcase
break # stops on the first match
end
end
end
"fe:ff:ff:ff:ff:ff" == arp ? arp : nil
end
end
Facter::Util::IP.get_interfaces.each do |interface|
Facter.add("arp_" + Facter::Util::IP.alphafy(interface)) do
confine :kernel => :linux
setcode do
arp = Facter::Util::IP.get_arp_value(interface)
"fe:ff:ff:ff:ff:ff" == arp ? arp : nil
end
end
end