glb-director-xdp: Add statsd metrics. #113
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ross
approved these changes
Sep 14, 2020
…r the stats loop.
…re checking for safety.
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This PR adds statsd metric support to glb-director-xdp. The metrics are collected using eBPF per-CPU structures, with the Go side doing housekeeping and emitting the metrics. The way these metrics are grouped should make tag-based aggregation fairly simple, and should also cover all paths/errors where the XDP program exits for any reason.
/cc #108