fix: connections can become stale when reconnecting #4310
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j4m1ef0rd
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Dec 6, 2023
syan095
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Dec 18, 2023
…-timeout * origin/main: feat: end to end network upgrade github action (#4274) feat: spec_version of PR is greater than spec version of current release (#4355) feat: enforce version is greater than release version on PRs to main (#4351) fix: btc witnesser test failing sometimes (#4353) fix: connections can become stale when reconnecting (#4310) chore: add `chainflip-rpc-node` systemd file 🚀 (#4352) feat: API Bins check SC compatibility (#4342) chore: update runtime spec checks ⛓️ (#4349) feat: Add version cmd to all bins (#4343) fix: changelog check 🤫 (#4348) chore: update docker tags 🐳 (#4347) chore: add runtime version check 👀 (#4344) feat: shave fees on ingress (#4335) pick/persa fixes (#4329) feat: track btc fees on success (#4334) ensure we dont create BTC transaction outputs below the bitcoin dust limit (#4340) fix: sweeping before withdrawal (#4337)
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Summary
Previously in some cases it was possible for connections to never become "stale" (preventing reconnections when inactive). Specifically, when we fail to connect to a node due to some authentication error, this would result us reconnecting to the node manually (rather than this being done by zmq internally), but this also reset activity for that node to "now" on every restart, preventing us from detecting the connection as stale. I changed the code to carry over any previous activity state when reconnecting, so inactive connections should now always enter "stale" state.
Writing a proper unit test for this is a bit cumbersome and I'm not sure if worth it, but I have tested this manually by changing some parameters and observing logs that the bug was present initially and that the new code fixes the incorrect behaviour.