Delivery parts keep running when the bus refuses a bucket they can work without; the builder asks a lost build again; the assigner says why a node gets no want (issue 1945) #51

Merged
mesh-tools merged 4 commits from fix/1945-ask-again-and-why into main 2026-10-25 21:43:11 +00:00
4 Commits
Author SHA1 Message Date
jschoubben 4628ba26b4 Delivery parts: take the essential and optional bucket opens from mesh-sdk (issue 1945)
mesh/delivery merged: source.main moved to novox/mesh-delivery@db53ec975f01
mesh/delivery-group group fix/1945-ask-again-and-why merged: every member is merged
mesh/check pass 4628ba26b41a on 73be3df28cd4 | unit 167 run, 443 kept | integration 177 run, 509 kept | composition passed on 3 machines
The open helpers were copied into seven parts; code shared between
modules lives in mesh-sdk, so they are mesh-sdk process's now and the
parts are pinned at fix/1945-optional-buckets (e0d1de04), moved to its
main once it merges, one delivery group with mesh-sdk.
2026-10-25 22:30:22 +01:00
jschoubben 20027e53ff Delivery parts: a bucket the bus refuses at start stops a part only when it cannot work without it (issue 1945)
Met twice on 2026-10-25: the builder of #48 exited on a refused read of
the gate's source and crash-looped, and its new reasks bucket would have
done the same. A grant reaches the bus with a delivery, so a refusal or a
timeout at start is often only a grant not there yet; exiting for it
stopped the whole part until a hand step on the bus.

Every startup open in the parts is now essential or optional. Essential
ones (a part's own state and the input it exists for) still stop the
start, with an error naming the bucket and its grant. Optional ones are
said and left: watches the bus refuses too. The builder builds trunk keys
without the gate's source, which it opens again at the next candidate
that asks a trunk head; toolchains and previews open again at their next
event, as a missing bucket did. builder_ask_again says that asking a
running step again builds it twice.
2026-10-25 22:29:31 +01:00
jschoubben d4a054bfed Assigner: say why a node gets no want, in the journal and in its removed want (issue 1945)
A new assignment whose trunk build was not done fell through the rules
with nothing said: no want, no neither-list entry, no log line, and the
rule holding it back was computed and dropped. The pass now logs the rule
when a node's reason appears or changes and when it has a want again, one
line per change. A node whose want is removed and that does not run the
module gets the reason in that removed want's words, so assigner_want
answers why; a node with no key gets no removed want, since its node agent
would then remove the module and stop holding its resources back.
2026-10-25 22:29:03 +01:00
jschoubben c623e8d235 Builder: ask again an ask its stream can no longer answer, and give it tools to read and ask again (issue 1945)
A build ask its seat's stream gave up on, dropped or ended with no step was
waited for with no end, and on restart taken over and waited for again: no
build node would ever answer it, and nothing could ask it again (trunk key
of mesh-build-node at 4e7b118e, building since 19:06; seven keys at 18:44).

At the step bound, a context's bound and no timer of its own, the builder
reads what the bus says of an ask with no step: gone from its stream, or
first in line while a node took a later ask. Such an ask is asked again
under a new id the key names, logged and said as build.asked-again, at most
three askings, then the key fails with why. The bus's max-deliveries
advisory would tell it sooner, but the builder is granted neither it nor the
workers' information, and the controller is not changed here.

builder_stuck reads every waiting key with its asks, askings and steps;
builder_ask_again writes the new reasks state, which the builder watches
and answers.
2026-10-25 22:29:03 +01:00