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Nils Goroll authored
We implement weights by scaling the number of replicas of each backend. The replicas parameter of .reconfigure() remains a minimum. For existing vtcs, the Debug hashcircle output has been compared before/after this change to ensure that behaviour is exactly equivalent. For for wighted backends, it has been checked that the number of instances per host on the hashcircle matches the expectation. Also refactor and clean up some of the code: - consistently make the number of ring points a uint32_t - some constification Ref #3276 Conflicts: lib/libvmod_directors/shard_cfg.c lib/libvmod_directors/shard_dir.h lib/libvmod_directors/vmod.vcc
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