Investigating the impact of HTTP3 on network latency for search

• katran

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  A high performance layer 4 load balancer

  

HTTP/3/QUIC supports migrating connections between two networks, such as if a user switches from WIFI to LTE. IPVS or any UDP load balancer won't handle this scenario properly since it doesn't introspect the QUIC header and load balance based on the QUIC connection ID. This QUIC connection ID allows for a stable connection when the device needs to switch networks. If operators have any sort load balancer (like IPVS) between the client and the point the HTTP/3 connection is terminated, they will need to ensure that it has proper support for QUIC. One example is Katran[1] which has support for this method of load balancing.

[1] https://github.com/facebookincubator/katran

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