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  fix(uplink): never pick our own URL; drop stale peer-advertise rows and measures

  LastSkywalker released this 2026-06-11 23:44:10 +03:00 | 228 commits to main since this release

  After a cluster rename the catalog still held this node's URL under the
  old cluster id ('local'), the picker's own-cluster filter no longer
  matched it, and — being the lowest-RTT entry — it won Pick(): the spoke
  shipped batches to ITSELF and logged 'peer returned 404: bridge
  receiving is not enabled on this node' with no way to remove the entry.

  Three layers:

  • applyPeerNodeAdvertise deletes rows advertising the same URL under a
    different (cluster_id, node_id) — a URL is one node endpoint, the old
    identity is stale by definition;
  • the picker takes the node's own advertise URL and excludes it from
    seeds, catalog probes and Pick();
  • probeOnce prunes measurements whose URL fell out of the probe list,
    so catalog/config changes actually remove entries instead of leaving
    a frozen healthy sample that keeps winning forever.

  Covered by live picker tests (httptest ping servers + sqlite catalog).

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