[Expired for neutron because there has been no activity for 60 days.]
** Changed in: neutron
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1352826
Title:
applying iptables rules takes too long when large scale deployment
Status in neutron:
Expired
Bug description:
I found the time to finishing the applying iptables rules( in
neutron/agent/linux/iptables_manager.py _apply_synchronized,_modify_rules)
takes nearly more than half an hour( 36 minutes in my environment) when the
number of active vms in cloud is more than 880.
This will lead that the time of bringing new created port up when booting an
instance will take very long, and if the vif_plugging_is_fatal is true, the
vif_plugging_timeout is not big enough, booting will fail.
Although optimization on _modify_rules in patch
https://review.openstack.org/#/c/77549/ did help shorten the cost, but still
the time is not short enough (it takes 17 minutes when the number of active vms
in cloud is more than 880 in my environment).
Further optimazation on _modify_rules need be done to fit the situation of
Large-scale deployment.
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