x/vmware-nsx
Code Issues Proposed changes

Improve DHCP agent performance

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Previously when starting the dhcp agent the sync_state() process would
be extremely expensive as it would query quantum server for each network.
In order to improve performance a get_active_networks_info() was added
so this information could be retrieved in one query rather than doing a
query for each active network.

The second part of this patch optimizes the logic to avoid calling
get_dhcp_port(). Previously, this method was called once for each network
which makes a call to get_subnets() and get_ports() unnecessarily as
the dhcp agent can determine itself if it needs to update a port or create a
port for dhcp.

This patch also threads the inital sync process and maintains backwards
compatibility with the previous rpc api.

There was also a trivial change to the nvp_plugin where filters are assumed to
be a dict.

implements blueprint improve-dhcp-agent-performance

Change-Id: I3b631057f595250dad76516faa9b421789f60953
This commit is contained in:
Aaron Rosen
2013-05-12 14:53:18 -07:00
parent 1566cfd697
commit 6189cbe4f5
12 changed files with 286 additions and 73 deletions
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4
etc/dhcp_agent.ini
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@@ -40,3 +40,7 @@ dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
# they will be able to reach 169.254.169.254 through a router.
# This option requires enable_isolated_metadata = True
# enable_metadata_network = False
# Number of threads to use during sync process. Should not exceed connection
# pool size configured on server.
# num_sync_threads = 4