`relay_region_rehome_source_cell_ids` listed only the 16 US cells, and that
list is the sole thing that stamps ORCA_RELAY_REHOME_DIRECTOR_SERVICE_ACCOUNT
and ORCA_RELAY_REHOME_AUDIENCE into a cell's startup script. A cell reports
regionalRehomeProtocol 1 only when both are present, so c27-c29 have always
reported 0. That leaves them ineligible as rehome sources and, once the worker
is bidirectional, as targets too, which strands the US desktops homed there.
This is a prerequisite only. Merge and roll it ONLY AFTER the bidirectional
rehome director change is deployed. Two live gates still hard-code the primary
region and would reject an Asia source no matter what the template stamps:
`cloud/apps/relay/src/app.ts` line 610 fails the trust probe with 409 when the
source cell's region is not RELAY_DEFAULT_REGION, and
`cloud/apps/relay/src/assignment-store.ts` line 5476 skips such a cell as
source_ineligible during rehome source selection. The bidirectional lane
removes both.
The topology check asserted every source sits in the primary region. That
mirrored those two gates rather than protecting anything Terraform owns, so it
is now advisory: it requires only a configured, unfenced cell with an explicit
connection limit, and the comment records that region eligibility belongs to
the director's own source and target predicates. Every cell's region is
already constrained by the assert above it.
The same-cap census test cross-checked membership against us-central1. Every
reviewed serving cell now carries the trust, so it asserts protocol 1 for all,
plus one non-source cell to keep the validator's protocol-0 branch covered.
Roll sequencing, because this apply is not self-contained:
- After the apply the Asia templates carry the two rehome lines, and the
`unexpectedRehome` rule at `cloud/dev/scripts/validate-relay-capacity-plan.mjs`
lines 243-247 rejects a protocol-0 plan that contains them. So c27-c29 have
no dispatchable protocol-0 same-cap roll until the director gate is gone or
this is reverted.
- The same-cap job runs the per-host trust probe after isolate, drain, and the
targeted apply. A 409 there leaves the cell serving but isolated and
migration-only, which is what happened to c13 on 2026-09-06.
- The only safe path: deploy the bidirectional rehome director, then dispatch
`Deploy Relay Production Same-Cap` canary-apply for one Asia cell with
target-rehome-protocol 1 and rollback-rehome-protocol 0, then batch-apply the
remaining two. That job runs its own targeted template and MIG apply.
- Never reach these cells with an untargeted root apply. The current plan
carries 60 changes and 50 destroys of unrelated standing drift.
* feat(relay): alert on far-cell placement and skewed region hints
US desktops were homed on asia-east2 cells for weeks in 2026-08 with every
existing relay alert green. Roughly 226 of 332 hosts on those cells were
non-APAC, and a phone connect took ~10 s there against ~0.6 s in region, but
nothing in Cloud Monitoring could see distance: the connection, queue, heap,
and SQL bars all measure a cell's own health, which was fine.
Three policies close that gap. Two read distance per cell, from the accept
and control-RTT timing added in the parent commit: phone-accept p95 above
2 s, and control ping p50 above 150 ms. The third reads the cause fleet-wide,
as the asia-east2 share of the region hints desktops send the director, so a
mis-picking client probe is visible before it lands anyone on a far cell.
All three are MQL rather than the metric filters the other relay policies
use. Every runtime metric is a DELTA DISTRIBUTION, and a filter condition can
only align one with a percentile; each alert needs the sum of the extracted
values as a volume floor so a sparse window cannot page. None of these
metrics exists in the project yet, so what was checked against production is
the query shape: the same MQL run over existing metrics of the same kind.
The skew denominator needs one log-based metric per hint key, so
`requestedRegionsDelta` now has one per relay region plus the unhinted
bucket. Those ride the existing snapshot metric family, which adds map
entries without touching the live metrics. A ratchet test pins the key list
to relay-contract's RELAY_REGIONS: a region added there without a metric
would shrink the denominator, so the test fails rather than letting the share
quietly inflate.
* fix(relay): compare hinted regions against placed ones, not a fixed share
Review found the skew alert inverted at both ends. A fixed 40% bar on the
asia-east2 share of region hints was silent through the exact broken state it
was written for, and would page forever once the desktop probe is fixed and
the genuine APAC share rises past it. An absolute share cannot separate those
because it has no reference point.
The hint share now has one: the share of assignments the director actually
placed in that region during the same hour. Measured over twelve hours on
2026-09-07, while the probe was still mis-picking, asia-east2 was 33.8% of
33,800 hinted requests and 7.9% of 45,364 assignments. That is a 4.27x
divergence and a 25.9-point gap, so the alert fires above 2x and 15 points,
inside the broken state and outside a healthy one. Both bars must hold: the
ratio alone blows up on tiny placement counts, the gap alone misses a
proportionally large skew at low volume. The reviewer proposed either bar
alone; requiring both keeps each one meaningful and still clears today's
numbers with room.
`unhinted` requests leave the denominator. They were 27% of all requests, so
a client that always sends a hint would move the number from 21.9% to 35.0%
with no behaviour change at all.
The comparison needs per-region placement counters, so `selectedRegionsDelta`
gets log-based metrics alongside the requested ones. Rather than extract four
hyphenated map keys through quoted field paths, which nothing in the project
does and which cannot be checked without applying, the relay now also
publishes flat `requestedRegion<Region>Delta` and `selectedRegion<Region>Delta`
fields next to the untouched maps. They are emitted as zeros in every
interval, so no series can drop out of the alert's inner join in an hour with
no asia placements, which is exactly the hour the skew is worst. Additive
only: metricVersion is unchanged, the maps still carry anything outside the
catalog, and the emitter's leak guard still passes.
Two corrections to what the previous commit claimed. None of these metrics
exist in the project yet, so the code, the doc and this message now say what
was actually checked against production: the query shapes, run over existing
metrics of the same kind. And the control-RTT policy records that EU desktops
on us-central1 sit at 100-130 ms, so a European-heavy cell can approach the
150 ms bar while correctly homed.
The skew alert will stay lit after a client fix until the backlog is rehomed.
Sticky assignment never re-consults the hint, so a desktop already on an asia
cell keeps landing there whatever it now asks for. The policy description and
the doc both say so, so nobody reads a slow clear as a failed fix.
* fix(relay): cross-multiply the skew bars so a zero placement share still fires
`hint_share / placement_share` is undefined in the hour that matters most.
When the director placed nobody in the region, MQL returns no rows for either
0/0 or x/0, so the series disappears before the gap and volume clauses run and
the alert stays silent. That hour is not hypothetical: it is every desktop
asking for a region while the director puts nobody there, which is what a
drained, fenced, or full region looks like, and it is the most extreme skew
the alert can see.
The condition is now cross-multiplied, `hint_share > 2 * placement_share`,
which is well defined at zero. Both forms were run read-only against
production surrogates chosen so the placement denominator is exactly zero:
the ratio form returned no rows, the cross-multiplied form returned the series
with the condition true on every point. A second surrogate pass with a tiny
hint share returned the series with the condition false, so the gap clause
still suppresses the healthy shape rather than the query silently matching
everything.
The flat field names are no longer derived on either side. Terraform title
cased each dash-separated part and the emitter upper cased each part's first
character, so the ratchet had to pin two source expressions by regex, which a
reformat would break and which never compared the actual rendered names. Both
sides now declare a literal map, relay-contract's
RELAY_REGION_METRIC_SEGMENTS and Terraform's relay_region_field_segments, and
the test compares the two declarations against each other and against the
expected names. `satisfies Record<RelayRegion, string>` makes a region added
without a segment a compile error rather than a silent gap in the alert's
denominators.
Both ratchets were checked by mutation: a wrong Terraform segment, a contract
region with no Terraform entry, and a revert to the ratio form each fail the
node test, and the new region fails the contract build.
* fix(relay): rehome hosts to their preferred region in either direction
The regional-rehome worker only moved hosts from a us-central1 cell to an
asia-east2 one, so a host whose desktop later records us-central1 stays where
it was put. Rehoming now compares the fresh preference against the region of
the cell the host is on and moves it to a general cell in the preferred
region either way, through the same drain, migrate, safety, and rate-limit
machinery.
- relay_region_rehome_attempts.preferred_region accepts both regions; existing
databases are upgraded in place by an idempotent named-constraint swap that
is safe when several directors start at once.
- A target must carry the drain protocol too: moving a host onto a cell it
can never be drained off again is the trap this change exists to undo. The
fleet whose health gates a rehome is now every general drainable cell,
which is exactly the set of legal sources and targets.
- The trust probe accepts a source cell in any region.
No wire change, and no behaviour change while the durable control is off.
* fix(relay): bound bidirectional rehoming with a per-host cooldown
Moving hosts in both directions removed the property that made the old
one-way worker self-terminating: a desktop whose region probe flips would be
dragged back and forth, one full drain and migrate per flip, because the
preference age never expires while the host keeps reconnecting.
- relay_region_rehome_control gains host_cooldown_ms, an operator input
plumbed like preference_max_age_ms (workflow, ops script, admin route,
durable row) and defaulted to seven days. A host with any attempt row
inside the window, whichever way that move went, is not a candidate; the
claim re-reads it under lock so an attempt landing between scan and claim
cannot start a second move. Skips are named host_cooldown, and the lookup
rides a new index on (user_id, relay_host_id, created_at).
- The candidate scan now also requires the target cell to be enabled, so it
mirrors the claim-time filter exactly and stops spending batch slots on
candidates that are certain to be skipped.
- Region CHECK lists are rendered from the shared region list instead of
being written out four times.
- The operations runbook states that cells without the drain protocol are
neither sources, targets, nor members of the safety gate.
* fix(relay): keep rehome reads and brakes working across the cooldown rollout
The ops script validated hostCooldownMs on every inspected control, so
against any director image predating the field inspect, pause, disable, and
failed-enable recovery all threw client-side. The workflow always runs from
main while the director image is operator-supplied, so that window opened at
merge and reopened on every rollback: the operator lost read-only visibility
and both emergency brakes while the worker could still be enabled.
The field is now validated only when the director reports it, and every apply
body that echoes an inspected control omits the key when that control lacks
it, so a legacy director never sees an unknown key. The write path stays
fail-closed the other way: enable refuses up front, before any mutation, when
the director does not report a cooldown it could honour.
Also replaces two bare 'us-central1' defaults with RELAY_DEFAULT_REGION.
* feat(cloud): add the mobile push gateway and its contract package (#8129)
A small open-source service that holds the APNs key and FCM credentials and
sends background push to paired phones on the desktop's behalf. Hosts
authenticate with a box challenge and HMAC proof on their pairing key, the
same shape the relay uses, so signed-in and accountless desktops share one
path. Tokens are stored; alert text is held only for the coalescing window.
The contract doc in docs/reference is the source of truth for every wire
shape. The interop test runs the real desktop answerer against a real
gateway-issued challenge so transcript drift fails in CI.
* feat(push): register phones and send background push from the desktop (#8129)
Adds the notifications.remote-push.v1 capability, the registerPush and
unregisterPush RPCs on the mobile allowlist, a gateway client with a cached
session and 401 re-auth, a durable unregister outbox, and a dispatcher that
offers every mobile notification to the gateway after the socket fan-out.
The dispatcher is fire-and-forget with one retry and drops registrations the
gateway reports dead.
Puts agentState on the mobile frame and fixes the #4375 wording so a working
agent is never announced as finished. The relay host-proof code moves onto a
shared envelope module with no behaviour change.
* feat(mobile): background push registration, receive, and settings (#8129)
Fetches the native APNs or FCM token, registers it with every paired host
that advertises the capability, and re-registers on token change. Foreground
pushes are suppressed inside handleNotification against the same seen set
the socket path uses, so nothing shows twice. Taps route by host fingerprint.
One Background notifications switch, off by default, with the disclaimer and
needs-input / finished sub-switches; hidden until a paired desktop is new
enough. Adds google-services.json and the expo-notifications plugin.
* chore(cloud): Terraform and deploy workflow for the push gateway (#8129)
Declares the Cloud Run service, runtime account, secrets, and orca_push
database behind push_gateway_enabled, true only in production. The deploy
workflow is gated like the relay's, deploys with no traffic, probes /ready
and a validate-only FCM send, then shifts traffic. It runs as the shared
production deploy account because the Cloud SQL rollout lease grant is
foundation-owned; its extra authority is three bindings on the push service.
docs/push-gateway.md carries the import commands for the resources created
by hand and the APNs key rotation procedure.
* docs: describe background notifications on the phone (#8129)
* docs: check in the mobile push contract (#8129)
Seven committed files cite it as the source of truth for every wire shape;
docs/reference is allowlisted per file, so add the entry.
* test(push): replay one checked-in host-proof vector on both sides (#8129)
Cloud Verify installs only the cloud workspace, so the gateway suite cannot
import the desktop answerer. Replace the cross-workspace import with a fixed
challenge vector generated from the contract package; the gateway fixture and
the desktop answerer each replay it and must produce the same HMAC. A
transcript drift on either side now fails in that side's own suite.
* fix(cloud): open the push gateway with invoker_iam_disabled, not an allUsers binding (#8129)
The production domain-restricted-sharing policy rejects an allUsers
run.invoker member, which the runbook anticipated. Opt the service out of
invoker IAM the way the relay director already does; the host proof is the
authentication either way.
* docs(cloud): the push.onorca.dev record exists and is hand-managed (#8129)
* fix(push): close review findings in the gateway (#8129)
- Quota reservation takes a per-host advisory lock; READ COMMITTED admitted
a whole burst past the cap (80/80 without, 60/80 with, against Postgres 16).
- Challenge issuance no longer writes push_hosts; the row lands on proof
verification. Stale hosts prune after 30 days. Per-IP token bucket on the
two unauthenticated routes.
- Streaming body limit via hono bodyLimit; a chunked body bypassed the
Content-Length check.
- registrationIds deduped in the schema; per-host device cap of 64; list
bounded to its schema.
- Gateway-side challenge TTL is the specified 10 s, not 40 s.
- APNs stream settles on close as well as end/error.
* fix(push): close review findings in the desktop client (#8129)
- A gateway registration the registry cannot persist is enqueued for delete
instead of leaking a live token.
- Unregister outbox re-reads pending per pass, honours enqueues during a
drain, and retries with backoff instead of waiting for the next launch.
- Dispatcher batches registrations by 20 rather than starving the rest.
- 401 compare-and-clear; a 401 after re-auth is unreachable; refused
handshakes and 429s are cached briefly instead of re-handshaking per event.
- Service is stopped on quit.
* fix(mobile): close review findings in push registration and receive (#8129)
- Consent generation guards a register that finishes after the switch went
off; the host is re-queued for unregister instead of recorded live.
- Foreground pushes seed the watermark before adopting the epoch, so a push
on a never-connected session cannot wipe a valid watermark.
- aps-environment follows the build via app.config.js; the iOS release
workflow sets it to production. A bare plugin entry wrote development.
- Pushes the OS showed while closed are marked seen before catch-up replay.
- Token null result is not cached; failed capability probes are retried and
never block an unregister; coalesced summaries are shown but not marked.
- Unresolvable fingerprint routes nowhere and is suppressed in foreground.
- Android channel ensured at boot; capability hook diffs clients by identity.
* fix(cloud): harden the push deploy workflow and size the gateway to the budget (#8129)
- Roll traffic back on a failed post-shift check; delete a candidate that
never took traffic; retry the origin probe and the FCM probe.
- Assert Terraform-owned scaling instead of mutating it from the workflow.
- Build before taking the Cloud SQL rollout lease.
- Declare the database pool in Terraform (2 per instance, max 2 instances)
and add the gateway to the connection budget; the previous default put the
shared instance 65 connections over its ceiling.
- State plainly that the shared deploy identity's relay authority is inherited.
* fix(push): read the runtime from shared state at push startup (#8129)
Threading the runtime through launchDesktopMode put the launch module one
line over the 300-line lint budget after the rebase.
* fix(push): key the unauthenticated rate limit on the hop Cloud Run wrote (#8129)
Cloud Run appends the connecting peer to x-forwarded-for; the limiter read
the left-most value, which the caller controls, so a forged first hop earned
a fresh bucket per request.
* fix(push): close the final security review findings in the gateway and infra (#8129)
- app.onError logs only the error name and answers a bare 500; hono's default
handler printed the whole error, and a pg error carries the row in detail
- a second per-IP bucket (240/min) runs ahead of the bearer lookup on every
authenticated route, so forged bearers cannot spend the two-connection pool
- one live session per host: minting deletes the host's earlier row
- device-less hosts are pruned after 1 h, not 30 d; any keypair mints one free
- notificationId is printable ASCII, since it becomes the APNs collapse header
- the impersonated FCM probe token is masked in the workflow log
- prevent_destroy on the Apple secrets and the orca_push database
* fix(push): close the final security review findings in the desktop client (#8129)
- fetch never follows a redirect: a 307 would replay the host proof and the
phone's token to whatever origin the redirect named
- registerPush params are strict and the paired identity is spread last
- a per-device bucket (10/min) bounds a phone looping registerPush, which
costs a gateway write and a synchronous registry write each time
* fix(mobile): close the final security review findings in push receive (#8129)
- a push with no epoch can no longer claim a seq-derived dedup key, in the
foreground or from the tray; a forged seq:N could otherwise swallow the
real bell at that seq
- a provider-delivered push with no host catalog, or no fingerprint at all,
stays unrouted instead of falling back to the hostId its raw data carries
* docs(push): record the ip buckets, session and host retention, and the token-ownership limit (#8129)
* fix(push): apply the schema on an untimed pool and retry statement-timeout aborts (#8129)
Ports the relay's #18722 pattern to the gateway: DDL runs on a one-connection
pool with statement_timeout 0 that is closed before the serving pool opens, and
SQLSTATE 57014 joins the bounded transaction retry path.
* fix: harden mobile push delivery and deployment recovery
* feat: align mobile notification preferences with desktop delivery
* fix: accept variable-length APNs device tokens
* fix: deduplicate native APNs and background socket notifications
The same-cap wave validator approves 19 cells (c7-c26 plus the Asia cells
c27-c29), but the canary script it drives hard-rejected anything outside the
16 US capacity cells, so the first Asia same-cap canary failed closed at
isolate. Give the canary an explicit --approved-cells switch that selects the
same-cap allowlist, and pass it from the four same-cap job invocations. With no
switch the behaviour is unchanged, so the US-only capacity workflow keeps its
scope.
201 relay cell process exits over 48h on 2026-09-04 paged nobody. Adds a log metric on the Docker `container die` event for the orca-relay container, an alert at >3 exits per instance per 15 min, and a four-chart incident dashboard covering the signals that had to be assembled by hand during the outage.
* feat(relay-infra): dynamic NAT ports and alerts for the 2026-09-04 stall signals
Relay cells reach Cloud SQL's public IP through Cloud NAT. The static default
of 64 ports per VM filled on 2026-09-04 and every cell's proxy dial timed out
at once, which read as a fleet-wide SQL stall against a healthy database.
Switch both regional NATs to dynamic port allocation (64..4096 per VM).
Add the three alerts that would have paged inside the first ten minutes:
- Cloud SQL WAL-triggered checkpoint loop (log metric on
"checkpoint starting: wal", > 3 in 5 min)
- Cloud SQL disk utilization > 70%
- Cloud NAT OUT_OF_RESOURCES packet drops on the relay gateways
No workflow applies google_monitoring_* or the NAT resources today; every
relay workflow is target-scoped to cells. Apply is a reviewed targeted plan
(see PR body).
* test(cloud): register the three new relay alert policies in the root partition fixture
The five `node ... | tee` steps in cloud-operate-relay-production-rehome-job.yml
reported tee's exit code, so a thrown inspect or apply passed green. The Aug 28
21:25Z and Aug 29 inspects and today's first inspect all printed
"director returned an invalid regional rehome control" (the durable control had
moved to generation 12 when the Aug 28 rehome aborted) and still succeeded.
`shell: bash` adds `-o pipefail`. A test pins the default and the tee count.
Mirrors stablyai/orca-cloud#470. The private relay workflows are retired, so
the dual accept has one live arm left. Add `github_workflow_file_prefix` for
the primary repository's workflow filenames, point `github_repo`/
`github_repo_id` at `stablyai/orca` (`1183888342`), and empty
`github_accepted_repositories` in both environments. Every relay provider goes
back to a single arm naming `cloud-` prefixed workflow refs.
`cloud/infra/terraform` stays byte-identical to the private branch. The two
identity tests diverge here as they already did, so they take the same change
rather than the same bytes: both now render the trusted ref head from the
Terraform variable instead of this checkout's own workflow filenames, which is
what lets the length pin be the same 791 characters in either repository.
* chore(cloud): pin staging relay c3 to the director's image
Mirrors stablyai/orca-cloud#468. c3 stayed on sha-c91439af after the
director and c4 moved to sha-e3e92d95, so the staging capacity proof's
compatible-director-image check has failed since 2026-08-14.
* test(cloud): scope the launch-image pin to staging C4 now that C3 shares the digest
* test(cloud): keep the public workflow assertions; scope only the launch-image pin to C4
The relay root does not declare it (it belongs to the private apps root), and
Terraform rejects an undeclared -var, so the first public Deploy Relay Staging
run failed at the C4 image bind.
Phase 6 of the relay split: the relay's deploy/operate surface moves under cloud/ with 24 cloud-* workflows gated on ORCA_CLOUD_OPERATIONS_ENABLED, the Cloud SQL rollout lease action, the relay Terraform root (dual-accept identities for both repositories), scripts, docs, CODEOWNERS, and a terraform validate job in Cloud Verify.
Jinwoo Hong