feat: Virtual cluster lifecycle state model#89

Merged

SamBarker merged 19 commits intokroxylicious:mainfrom

SamBarker:virtual-cluster-lifecycle

Apr 10, 2026

Commits on Apr 10, 2026

Virtual cluster lifecycle state model proposal
SamBarker
committed
Renumber proposal from 014 to 016
SamBarker
committed
Address review feedback: collapse healthy/degraded to accepting, remove tenancy motivation
SamBarker
committed
Add runtime health model as rejected alternative
SamBarker
committed
Address minor review feedback on PR #89

SamBarker
and
claude
committed
Clarify graceful draining is best-effort, not a guarantee

SamBarker
and
claude
committed
Make virtual cluster entity model explicit in proposal

SamBarker
and
claude
committed
Strengthen observability section: lifecycle state is public API

SamBarker
and
claude
committed
Rename startupPolicy to partialInitialisationPolicy with clearer values

SamBarker
and
claude
committed
Address circuit-breaker and in-flight definition questions from PR #89

SamBarker
and
claude
committed
Rename accepting state to serving

SamBarker
and
claude
committed
Acknowledge idempotent producer session limitation during draining

SamBarker
and
claude
committed
Reframe proxy-level lifecycle as open questions rather than planned work
SamBarker
committed
Correct idempotent producer claim: session survives reconnection
SamBarker
committed
Address review feedback: liveness probes and in-flight wording
SamBarker
committed
Rename partialInitialisationPolicy to onVirtualClusterFailure
SamBarker
committed
Move serve policy to terminal state, rename remaining to successful
SamBarker
committed
Rework graceful shutdown: per-VC drain timeout, Netty as hard backstop
SamBarker
committed
Update default drainTimeout to 10s
SamBarker
committed

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feat: Virtual cluster lifecycle state model#89

feat: Virtual cluster lifecycle state model#89
SamBarker merged 19 commits intokroxylicious:mainfrom
SamBarker:virtual-cluster-lifecycle

Commits on Apr 10, 2026

Virtual cluster lifecycle state model proposal

Renumber proposal from 014 to 016

Address review feedback: collapse healthy/degraded to accepting, remove tenancy motivation

Add runtime health model as rejected alternative

Address minor review feedback on PR #89

Clarify graceful draining is best-effort, not a guarantee

Make virtual cluster entity model explicit in proposal

Strengthen observability section: lifecycle state is public API

Rename startupPolicy to partialInitialisationPolicy with clearer values

Address circuit-breaker and in-flight definition questions from PR #89

Rename accepting state to serving

Acknowledge idempotent producer session limitation during draining

Reframe proxy-level lifecycle as open questions rather than planned work

Correct idempotent producer claim: session survives reconnection

Address review feedback: liveness probes and in-flight wording

Rename partialInitialisationPolicy to onVirtualClusterFailure

Move serve policy to terminal state, rename remaining to successful

Rework graceful shutdown: per-VC drain timeout, Netty as hard backstop

Update default drainTimeout to 10s