RIP
** Changed in: neutron
Status: In Progress => Won't Fix
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https://bugs.launchpad.net/bugs/1264608
Title:
openvswitch agent plugin should execute batched ovs-vsctl CLI
statements on __init__()
Status in neutron:
Won't Fix
Bug description:
When restarting neutron-plugin-openvswitch-agent, the plugin goes
through a series of initialization calls, many of which call out to
ovs-vsctl to set up things like the integration bridge, tun bridge and
all the flows.
I've seen this __init__() process take upwards of 2 hours (!) to
complete on a small (<100 compute node) zone. Most of the time is
spent spawning rootwrap'd calls to ovs-vsctl to set up the various
tunnels, flows and bridges.
ovs-vsctl can take a series of action arguments in the same CLI
statement, and will perform those actions as an atomic unit. At the
very least, the plugin's __init__() function's setup_xxx() subroutines
should take advantages of this instead of looping over possibly dozens
or hundreds of port and flows, each with a separate subprocess call
out to utils.execute('ovs.vsctl...').
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