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Merge pull request 'Design 18 and ADR 0190: shared build work proven live on all four machines, and the five gaps the switch found' (#313) from design/18-shared-build-work-proven-live into main

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This commit was merged in pull request #313.
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mesh-admin
2026-10-03 09:44:19 +00:00
parent 73c4d24024 c03f2cd4c6
commit b232b44f4c
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02-DECISIONS/0190-a-seats-work-is-shared-by-its-holders-and-building-is-the-first-such-role.md
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@@ -102,7 +102,7 @@ is unchanged: a tier's asks go out together and are now worked together.
| An ask is never delivered to a busy holder | the same test: the busy holder's ask count stays at one until it acknowledges | | An ask is never delivered to a busy holder | the same test: the busy holder's ask count stays at one until it acknowledges |
| A holder that dies mid-work leaves its ask for another | the same test, one holder closed mid-ask | | A holder that dies mid-work leaves its ask for another | the same test, one holder closed mid-ask |
| The asker names no machine | the controller's seat table: `node-build-agent` accepts `build` and the asking side publishes to the seat's accept subject, as the existing tests of `build` already require | | The asker names no machine | the controller's seat table: `node-build-agent` accepts `build` and the asking side publishes to the seat's accept subject, as the existing tests of `build` already require |
| Live | `builds` shows a tier's builds `on` more than one machine within one plan; `seats` shows `node-build-agent` held on every machine with a container runtime | | Live | `builds` shows a tier's builds `on` more than one machine within one plan; `seats` shows `node-build-agent` held on every machine with a container runtime — *held on all four machines and a build taken by a workstation's agent, 2026-10-03* |
## References ## References
03-DESIGN/01-to-be/18-building-a-module.md
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@@ -5,7 +5,7 @@ code:
- mesh-controller cmd/mesh-builder - mesh-controller cmd/mesh-builder
- mesh-controller internal/builder - mesh-controller internal/builder
- mesh-catalog modules/build-agent - mesh-catalog modules/build-agent
updated: 2026-10-02 updated: 2026-10-03
decisions: decisions:
- 02-DECISIONS/0190-a-seats-work-is-shared-by-its-holders-and-building-is-the-first-such-role.md - 02-DECISIONS/0190-a-seats-work-is-shared-by-its-holders-and-building-is-the-first-such-role.md
- 02-DECISIONS/0157-a-build-says-what-it-does-on-the-bus-as-it-happens.md - 02-DECISIONS/0157-a-build-says-what-it-does-on-the-bus-as-it-happens.md
@@ -283,6 +283,15 @@ the bus credential — said once in the module's manifest. The outcome names the
This is the bus's shared-work pattern, not a build-specific one: any module declaring a node seat with This is the bus's shared-work pattern, not a build-specific one: any module declaring a node seat with
`accepts` has its work shared by its holders the same way. Building is the first use. `accepts` has its work shared by its holders the same way. Building is the first use.
*Built and proven live 2026-10-03.* `build-agent` holds `node-build-agent` on all four machines; the first
build taken by a workstation's agent was a catalogue module at 09:35 UTC; the one-holder `builder` is
retired. The switch found five gaps, each an issue: a worker whose type changed stranded its holder
([206](../../04-ISSUES/206-a-seats-worker-changing-type-strands-the-holder-and-the-build-that-would-fix-it/00-report.md)),
a re-made worker replayed the stream's history ([207](../../04-ISSUES/207-a-re-made-worker-replayed-every-ask-the-stream-kept/00-report.md)),
a seat's worker is made only when the controller starts ([208](../../04-ISSUES/208-a-seats-worker-is-made-only-when-the-controller-starts/00-report.md)),
a module's identifier must fit the tightest backend's key (the slug), and an idle machine's empty fetch
was read as the end (fixed in the controller the same day).
## A build says what it does, as it happens ## A build says what it does, as it happens
*2026-10-01 — [ADR 0157](../../02-DECISIONS/0157-a-build-says-what-it-does-on-the-bus-as-it-happens.md).* *2026-10-01 — [ADR 0157](../../02-DECISIONS/0157-a-build-says-what-it-does-on-the-bus-as-it-happens.md).*