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Avoid futile thrashing on switch search

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Jarrod Johnson
2017-03-29 09:28:25 -04:00
parent cd841fb43e
commit 935acc2a10
1 changed files with 5 additions and 1 deletions
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confluent_server/confluent/networking/macmap.py
+5 -1
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@@ -209,8 +209,12 @@ def _map_switch_backend(args):
def find_node_by_mac(mac, configmanager):
if vintage and util.monotonic_time() - vintage < 90 and mac in _nodesbymac:
now = util.monotonic_time()
if vintage and now - vintage < 90 and mac in _nodesbymac:
return _nodesbymac[mac]
# do not sweep switches more than once every 10 seconds
if vintage and now - vintage < 10:
return
for _ in update_macmap(configmanager):
if mac in _nodesbymac:
return _nodesbymac[mac]