SDN slow reload with multiple VNETs

the_upside_down

Active Member
Oct 8, 2020
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I've set up a VXLAN zone in the SDN, and am programatically creating multiple VNETs in that zone. However this has quickly become a bottleneck as reloads are taking upwards of ten minutes to complete.

On any node (of the 9 in the cluster) `ifreload -a` completes in under 7 seconds, but each node takes 30 - 90 seconds to apply, which stack up as the SDN apply API call runs one node at a time.

I can't see any obvious reason why this is taking so long or how to cut it down, short of reducing the number of VNETs or redesigning the network architecture.