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Server-native maintenance notifications: opt in, react, hand off, and recover when nothing is announced - #3191

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mgravell merged 50 commits into

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marc/maint-optin-server

Sep 18, 2026

Merged

Server-native maintenance notifications: opt in, react, hand off, and recover when nothing is announced#3191
mgravell merged 50 commits into
mainfrom
marc/maint-optin-server

Commits on Aug 25, 2026
- Toy server: support the maintenance-notification opt-in, and sending events
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Commits on Sep 1, 2026
Commits on Sep 2, 2026
- Apply the half-window reconnect rule where it is the only tool
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- Serialise the fault-injector tier, and stop bounding it with an HTTP timeout
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- Sweep the databases a killed scenario leaves behind
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  b5e6061
- D9: a soak for the state that only misbehaves with repetition
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- Prove relaxed timeouts rescue a command, and attribute one that fails
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- Measure how long a completion stays retained
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- Key the handoff count on distinct MOVING sequences, not one overall
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- A catch-up completion opens no relaxed window
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- Read the retention probe from the log, not the relaxed window
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- Stop claiming parity with go-redis on the post-event tail
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- Say that the connect-time rule is completions only
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- Retention measured to three hours, not ninety minutes
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Commits on Sep 3, 2026
- Attribute a fault to a window that has just closed, and warn on a missed handoff
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- Do not raise an event for a replayed completion
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- Run the destructive scenarios, supervised
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- Document the destructive gate in the tier README
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- Prove a refusing node is retired, and correct why it was in doubt
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- Put the fault-injector tier in the solution
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- Re-read the topology when an endpoint only ever refuses
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- One black-hole tunnel, not one per test class
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- Document the connect-failure topology refresh
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- Merge main: keep both sets of unshipped public API entries
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- Docs: lead with the server-native notifications, and name the feature
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- Soften the SequenceId wording
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  eb8c4a0
- Validate endpoint retirement against a real node removal
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  a9d3f1c
- cluster_failure ends the deployment; assert clean degradation, not recovery
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- Warn that a stale environment directory passes every check
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Commits on Sep 8, 2026
- Re-read the topology on a long timer as a backstop
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- Say what ConfigCheckSeconds actually checks
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Commits on Sep 10, 2026
Commits on Sep 11, 2026
- Merge main (3.2.0 shipped): keep only what is genuinely unshipped
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Commits on Sep 17, 2026
- Ship maintenance notifications purely opt-in; hold the auto-enlistment back
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- Target 3.3.0
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- Add Geo failover scenario test (#3243)
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- Merge main (3.2.15) into the maintenance-notifications branch
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- Merge main (#3245) into the maintenance-notifications branch
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- Count connect attempts from the failure tally, not the resurrect log
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Commits on Sep 18, 2026
- Merge main (SER001/SER007/SER008 retired) into the maintenance branch
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- Ship the 3.3.0 API surface
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