3b22541a2a
Due to the high memory footprint of current Python ns-metadata-proxy, it has to be replaced with a lighter process to avoid OOM conditions in large environments. This patch spawns haproxy through a process monitor using a pidfile. This allows tracking the process and respawn it if necessary as it was done before. Also, it implements an upgrade path which consists of detecting any running Python instance of ns-metadata-proxy and replacing them by haproxy. Therefore, upgrades will take place by simply restarting neutron-l3-agent and neutron-dhcp-agent. According to /proc/<pid>/smaps, memory footprint goes down from ~50MB to ~1.5MB. Also, haproxy is added to bindep in order to ensure that it's installed. UpgradeImpact Depends-On: I36a5531cacc21c0d4bb7f20d4bec6da65d04c262 Depends-On: Ia37368a7ff38ea48c683a7bad76f87697e194b04 Closes-Bug: #1524916 Change-Id: I5a75cc582dca48defafb440207d10e2f7b4f218b |
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| .. | ||
| __init__.py | ||
| dhcp.py | ||
| l3.py | ||
| metadata.py | ||