envoyproxy/envoy

Implement Weighted Random Selection Queue (WRSQ) load balancing

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#14.597 aperta il 7 gen 2021

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area/load balancinghelp wanted

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See https://github.com/envoyproxy/envoy/issues/14360#issuecomment-744092787 and https://github.com/tonya11en/envoy/pull/1#issuecomment-744085044. This will require https://github.com/envoyproxy/envoy/pull/14569 to be merged and https://github.com/envoyproxy/envoy/issues/14360 to be resolved.

We should use WRSQ for:

  • Weighted priority picking
  • Weighted locality picking
  • WRR host picking

We will still use EDF for WLR host picking or any other future picking in which weights can and do rapidly change.

cc @tonya11en @antoniovicente @htuch @snowp

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