Review on #20379, finding 1 (High). Two ways an MCP config revision could
be silently acknowledged without ever being applied:
Client: the poll advanced its accepted mcp_rev BEFORE calling reload.mcp,
and quietRpc collapses failures to null — a reload that failed against a
temporarily broken server left the revision recorded as applied, and no
subsequent poll retried until an unrelated MCP edit. The handshake is now
syncMcpReload(): send the observed rev with the request, advance `accepted`
only when the server answers status=reloaded (to the server's loaded_rev,
falling back to the requested rev on older gateways), and re-compare on
EVERY poll tick — decoupled from mtime — so a transient failure heals on
the next tick. An in-flight guard stops the 5s poll from stacking requests
behind a slow reload.
Server: generation-only coalescing let a follower triggered by revision B
ack against revision A's registry when the config changed under a slow
leader. The leader now re-hashes the MCP-relevant config after discovery
and repeats until stable (bounded), records _mcp_reload_loaded_rev, and a
follower coalesces only when the revision it was asked to load matches —
otherwise it re-runs the full reload itself. Responses carry loaded_rev.
Deterministic tests for the exact failure sequences: failed reload → no
ack, no generation advance; A-then-B overlap → follower re-runs; matching
rev → coalesces; failed leader → follower re-runs; legacy no-rev callers
keep generation-only coalescing (thread ordering via an instrumented lock,
no sleeps). Client: 6 vitest cases on the ack/retry/in-flight contract.
subprocess.run(["git", ...], timeout=...) deadlocks on Windows: run()'s
post-timeout cleanup calls an unbounded communicate() after killing git.
Killing the PATH-resolved launcher can leave a suspended descendant git.exe
holding duplicates of the captured stdout/stderr handles, so the pipes never
reach EOF and the reader-thread join blocks forever — leaking a process +
two reader threads per fired timeout (the accumulating git.exe load behind
Windows Defender CPU spikes).
Two fail-open probe call sites had this identical flaw:
- tui_gateway/git_probe.py::run_git — on the Desktop agent-build path
(_start_agent_build -> _session_info -> branch() -> run_git), where the
hang turned an optional branch label into "agent initialization timed
out" (#68609).
- agent/coding_context.py::_git — hangs the agent turn inside
build_coding_workspace_block under an ACP host (#66037).
Consolidate both onto one shared bounded_git_probe() in
hermes_cli/_subprocess_compat.py (both files already import from there, so
no new import surface):
- explicit communicate(timeout), then on ANY failure a tree-kill —
proc.kill() AND, on Windows, best-effort taskkill /T /F so the suspended
descendant that holds the pipe writers dies too — plus a bounded 1s
post-kill drain; if the pipes are still held they're abandoned (the
orphaned reader threads are daemonic and cost nothing).
- fail open to "" on every path: spawn error, timeout, kill() raising
(access denied / already reaped — a raise inside the except handler
previously escaped the contract), and non-timeout communicate() failures
now also terminate the child instead of leaving it running.
- the taskkill spawn can't re-enter the deadlock class: it captures no
pipes (DEVNULL), so its own timeout cleanup has no reader threads to join.
Normal-path spawn contract is preserved byte-for-byte: PIPE/PIPE/DEVNULL,
text + utf-8 errors="replace", hidden-window creationflags on Windows only,
nonzero returncode -> "". Each call site keeps its own timeout (1.5s / 2.5s).
Supersedes #68622 (Sora-bluesky — git_probe fix + tree-kill) and #66038
(iamwongeeeee — coding_context fix), folding both into one shared helper so
the two sites can't drift and every timeout tree-kills the descendant. Tests
consolidated onto the helper, incl. the previously-missing assertion that a
Windows timeout escalates to taskkill /T /F.
Co-authored-by: Sora-bluesky <sora.bluesky.dev@gmail.com>
Co-authored-by: iamwongeeeee <wykim777@naver.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
test_session_expired_retry_waits_for_new_session hardcoded
_server_breaker_opened_at["hindsight"] = 123.0 to simulate a circuit breaker
whose cooldown has already elapsed. But the breaker in tools/mcp_tool.py
compares that stamp against time.monotonic() (age = monotonic() - opened_at,
elapsed when age >= _CIRCUIT_BREAKER_COOLDOWN_SEC). time.monotonic()'s origin
is arbitrary and small on a freshly-booted CI container, so age worked out to
only a few seconds there (< the 60s cooldown) — the breaker stayed open, the
half-open probe never fired, and the retry returned the "unreachable" error
instead of "bank ok". It passed on long-uptime dev boxes (large monotonic)
and failed under CI, with the reported "Auto-retry available in ~Ns" drifting
run to run as the container's monotonic clock varied.
Stamp opened_at relative to the same clock the code reads
(time.monotonic() - _CIRCUIT_BREAKER_COOLDOWN_SEC - 1.0) so the cooldown is
provably elapsed regardless of the monotonic origin, exercising the intended
half-open transition deterministically.
The lazy-loaded Available Tools section rendered a BLANK gap that popped
when data landed. It now shows animated shimmer rows shaped like the real
content (label block + value run, diagonal band sweep), and the summary
line prints "… tools · … skills" instead of "0 tools · 0 skills" while
counts load.
components/loaders.tsx ships the primitives (shimmerSegments band math,
Shimmer, useShimmerPhase, ShimmerRows) — colors are caller-owned theme
tones, one interval per composition. Cherry-picked from the SDK-shape
branch so the skeleton lands with this PR; the widget-SDK consumers stay
in the follow-up.
Regression from the r3 shell-pin fix: applyConfiguredTuiTheme('light'|'dark')
returned early when HERMES_TUI_THEME already matched, leaving
configPinnedTheme false — so a later '/theme auto' refused to clear the pin
and the session stayed forced to the old mode while config said auto. Set
configPinnedTheme before the match short-circuit.
Bugbot's other three r6 findings (GatewaySkin paired-palette fields,
ConfigMtimeResponse.mcp_rev, picker maxWidth props) are diff-truncation
false positives — all declared in gatewayTypes.ts / the picker prop
interfaces; typecheck is green.
The startup config.get seeded mtimeRef but not mcpRevRef; after a normal
boot mtime is already non-zero so the poller's baseline branch never runs,
leaving mcpRevRef empty. The first /skin (or other cosmetic) write bumped
mtime with an unchanged mcp_rev, and empty !== hash tripped a full
reload.mcp — exactly the reconnect this optimization removes. Seed the
revision alongside mtime at boot.
The branch had stripped every node_modules/@esbuild/* optional-platform
entry from the lockfile (442 deletions, 0 additions) — collateral from an
earlier local @esbuild/darwin-arm64 reinstall that rewrote the lockfile to
this machine's platform only. esbuild still declares them as
optionalDependencies, so `npm ci` on Linux CI would skip the platform
binary and break Vitest / ui-tui builds. No dependency was added on this
branch (the only package.json delta is a dev `visual` script), so the
lockfile is restored to match main exactly.
- commitTheme compares the first commit against the SEED theme uiStore
mounted with (boot cache/default), not null — a cold start that resolves
to a skin differing from the default previously skipped the anti-tearing
forceRedraw on that first swap.
- applyConfiguredTuiTheme('auto') now clears only a pin CONFIG set (tracked
via configPinnedTheme), never a HERMES_TUI_THEME the user exported in their
shell — that env override outranks auto-detection per detectLightMode's
documented priority, and a config hydrate was wiping it.
(Bugbot's recurring "GatewaySkin missing paired palette fields" is a
diff-truncation false positive — gatewayTypes.ts declares light_colors/
dark_colors, typecheck green.) 81 handler + build/lint green.
- mcp_rev hash now covers `mcp_servers` (the server DEFINITIONS the classic
CLI watches) alongside `mcp`/`tools` — editing a server previously bumped
mtime but not mcp_rev, so the TUI skipped reload.mcp and new servers never
connected until a manual /reload-mcp.
- reload.mcp coalescing survives a failed leader: a completed-generation
counter (bumped only after a successful shutdown+discover) gates the
follower. If the leader threw (flapping server) the follower re-runs the
full reload itself instead of returning a bogus success over an empty
registry.
- /theme applies AFTER config.set confirms (mirrors /indicator) with a
guardedErr catch — a failed persist no longer leaves the session showing a
theme that reverts on restart.
384 tui_gateway + 1246 TS tests, lint, build green.
Three real findings from the review of the reload.mcp pooling + OSC-10 work:
- Lock released too early: the leader now holds _mcp_reload_lock across
shutdown+discover AND its own agent refresh — releasing after discover let
a second reload tear the registry down while the first was still reading it
to rebuild the session's tool snapshot.
- Coalesced reload skipped the agent refresh: a follower returned
"reloaded" without rebuilding ITS OWN session's snapshot, so a coalesced
session kept stale tools. Followers now wait, then refresh their agent
against the freshly-built registry (under the lock, skipping the redundant
shutdown/discover). Shared _finish_reload tail for the `always` opt-out.
- macOS AppleInterfaceStyle fallback never set `resolved`, so a late OSC-10
foreground reply could re-flip the committed inference (visible churn). It
now marks resolved; a real OSC-11 background measurement still corrects it
(that listener intentionally doesn't gate on resolved — measurement beats
inference).
Bugbot's other four findings were diff-truncation false positives (color.ts,
themeBoot.ts, and the mcp_rev/light_colors/dark_colors types all exist;
typecheck + build green). 384 tui_gateway + TS suites pass.
Every picker/hub forced width >= 24 AFTER applying the caller's maxWidth,
so a grid cell narrower than 24 (or a FloatBox cell under 28 with its 4
cols of chrome) overflowed and clipped at the terminal edge. One shared
clampOverlayWidth(preferred, maxWidth, min=24): the caller's cap is
ABSOLUTE (a cell knows its budget), the usability floor applies only when
the cap allows it, uncapped keeps the old floor semantics. Five call
sites (model/pet pickers, skills/plugins hubs, session switcher) route
through it; the grid-test FloatBox drops its own 24 floor. Contract-tested
including the sub-floor cap case from the review.
/agents, /journey, model picker, skills hub, plugins hub, pet picker, and
the approval/confirm prompts all used SGR inverse for the active row —
terminal-interpreted against unknowable defaults (black slab on transparent
profiles) and visually divergent from completions/session-switcher. New
spreadable chipRowProps(t, active) in overlayPrimitives (chip bg + lifted
ink + bold; spread after `color` so chip ink wins) converts each site to
the one selection treatment. rg confirms zero inverse={} remaining in
components/.
Two-column grid: the name track auto-sizes to the widest visible command so
descriptions align in their own column instead of running under the names.
Descriptions render in the neutral statusFg gray — label and muted are
near-twins on the gold skins, which made command and description read as
one unparseable run.
scrollbarColors(t, hover, grabbed) in overlayPrimitives is now THE scheme
for both scrollbars (was duplicated formulas); textInput's hex parsing
collapses into one hintRgb helper feeding colorizeHint and hintCursorCell.
Comment bloat trimmed. No behavior change — 1243 tests byte-green.
On white, the vivid #FFD700/#FFBF00 read as glare and the WCAG-darkened
mustard reads as mud. The sweet spot is the statusbar's goldenrod family
(hue kept, saturation tamed, mid luminance): title #C8961E, headers
#D89B04, labels #A97E10, muted #B8860B unchanged, warm bronze ink body
#5C4718, deepened semantics + shell blue. Hierarchy on white: ink 8.9:1 >
fade 5.2 > label 3.7 > muted 3.3 > title 2.7 > headers 2.4. Dark mode
renders the vivid block untouched (explicitly approved as-is).
mix(text, surface) was invisible whenever text was already pale (the
light-rendered default: cream blended toward white = nothing) and inherited
wrong-polarity detection through the surface. mix(muted, text, .5) is
pole-proof: muted is mid-luminance by construction, so the midpoint stays
readable everywhere. Audited 9 skins x both poles: 2.0-2.9:1 on white,
5.6-9.3:1 on dark (worst case 1.92 for a light-authored skin on dark).
Transparent profiles make OSC-11 useless (xterm reports the unset default,
pure black, regardless of the composited surface) so polarity detection
lagged editor theme flips. OSC-10 reports the theme's REAL foreground on
those hosts — its luminance reveals the pole. hermes-ink grows a foreground
slot (shared reportedColorSlot factory), App.tsx queries both in the
startup batch (background first so a trusted answer wins without churn),
and the app commits an inferred pole only when the background was
distrusted AND the foreground is decisive (bright=dark theme, dark=light;
mid-grays and #000/#fff defaults commit nothing). User pins still outrank.
Tool/skill rows rendered labels in muted and member lists in text — which
inverts per skin (muted is the strong family tone on gold skins but the
weak gray on blue ones; slate/poseidon read backwards). Labels now lead in
the theme's label tone, values recede via an explicit fade toward the
surface; audited across all 9 built-ins x both poles. The composer
placeholder lands on muted — the "(and N more toolsets…)" tone — a
mid-luminance family color that reads receded on both poles even when
polarity detection is wrong.
On terminal.background #00000000 xterm paints "drawn blank" and
attribute-styled cells against an opaque black RGB the user never sees
elsewhere. Verified by PTY byte capture + stateful SGR replay that we emit
no black backgrounds — then removed every trigger: the banner's opaque
space-fills, the scrollbar's non-scrollable space column and SGR-dim
track, the placeholder's SGR inverse cursor and dim fallback, and the bold
full-width banner rule. Chrome styling is now explicit truecolor only:
scrollbar thumb rides primary (accent on hover/drag) over a blended track,
the placeholder cursor is a theme-colored chip (48;2 bg + luminance-picked
ink), hints always carry an explicit 38;2 foreground.
Pixel-sampled against the reference screenshots: the beloved classic
light-mode look is the vivid authored golds rendered essentially raw
(#FFD700 shows as bright #F5C242) — transparent terminal profiles apply no
contrast lift of their own, and pre-darkening every foreground to WCAG 4.5
produced the reported mustard mud. Light-mode display floors become
near-invisible rescues only (1.18 display / 1.6 semantic; dark keeps
1.45/2.2); the default skin ships a fills-only light_colors OVERLAY
(polarity-flip the navy menu/status fills, foregrounds inherit the vivid
colors), and themeForSkin merges polarity overlays instead of replacing.
Palette audit reworked: base colors audited fully, overlays for valid keys
and fill polarity.
Four responsiveness/hardening fixes surfaced by rapid /skin switching:
config.get mtime now carries an mcp_rev hash so the TUI reloads MCP only
when MCP-relevant config changed (cosmetic /skin writes cost seconds of
reconnects before); reload.mcp runs on the RPC pool serialized by a lock
(inline it froze the stdio reader for the duration of a flapping server's
retry loop — config.set/complete.slash sat unread and the TUI appeared
dead); theme swaps schedule one full repaint (incremental diffs after a
recolor tear — stale cells keep the old palette, read as "shadows"); and
OSC-11 pure-black answers are distrusted universally (unset-default
fingerprint on xterm.js hosts and tmux). Parent EIO zombie fixed: a dead
PTY made every render write throw once a second forever; exit after 5
consecutive dead-stream errors.
The desktop color-mix system, ported: a theme is a handful of identity
SEEDS (text, primary, accent, border, status hues); every secondary tone
(muted, label, surfaces, chips, selection) is a color-mix derivative
against the real terminal background. lib/color.ts consolidates the
primitives (parse/mix/luminance/contrast/retone + xterm.js's multiplicative
liftForContrast). Knobs are grid-search fitted so the math reproduces the
classic hand-tuned literals (contract-tested). The display shim renders
authored palettes RAW and only rescues near-invisible colors. Boot reads
the last resolved theme from $HERMES_HOME/tui-theme-boot.json so the first
frame paints in the right palette (no default-dark flash), and the
placeholder cursor follows the bubbles textinput pattern.
OSC-11 asks the terminal for its actual background at startup (env
heuristics are blind on xterm.js hosts) and the theme re-derives against
the answer: desktop-contract adaptation (contrast floors + fill polarity),
a shared list-row selection primitive instead of per-picker panel fills,
paired light_colors/dark_colors skin blocks with a machine audit, and a
/theme auto|light|dark pin (display.tui_theme) for hosts whose probe lies.
E2E coverage for the OSC reply chain + /theme-info diagnostics.
Banner (responsive tiers: full logo -> compact rule -> text -> hidden),
SessionPanel (fixed hero track + flexible info track, the desktop pane
shell's fixed-vs-flex contract), floating overlays, prompt zone, and the
pickers all render through WidgetGrid instead of hand-rolled flex math.
Pickers gain maxWidth so grid cells can cap them.
Rebase of the widget-grid PR onto current main, then grow it into a real
2-axis engine: resolveGridTracks (grid-template tracks — fixed cell counts
and weighted fr shares with mins), layoutWidgetGrid (1D auto-packing flow),
and layoutGridAreas (2D absolute placement with row/col spans and implicit
row growth). Overlay/Dialog primitives give zoned viewport-level modals
with an optional scrim. /grid-test (interactive: areas, nesting, zoom,
gap/padding) and /grid-test streams (4x3 mission-control GridAreas board
with promote-to-main) exercise everything end to end.
The /api/status gateway_updated_at field and the gateway /health/detailed
updated_at field passed through whatever gateway_state.json contained,
untyped. All current writers emit RFC3339 via _utc_now_iso(), but legacy
gateways wrote unix epoch floats, and a corrupt or hand-edited state file
can inject numbers or arbitrary garbage — while the frontend types
(web/src/lib/api.ts) declare string | null.
Add normalize_updated_at() in gateway/status.py as the single funnel:
- str: accepted iff datetime.fromisoformat parses (trailing Z tolerated);
naive timestamps coerced to UTC; canonical isoformat returned
- int/float: treated as unix epoch seconds -> UTC ISO string, with a
plausibility guard (reject < 2000-01-01, > now+1day, non-finite)
- bool: rejected explicitly (int subclass, but never a timestamp)
- anything else: None
Apply it at both emit sites: the dashboard /api/status handler (covers
both the local read_runtime_status() branch and the remote
/health/detailed cross-container fallback branch) and the gateway API
server's /health/detailed response.
Contract tests: parametrized /api/status normalization (epoch float/int,
garbage string, None, bool, dict, absent key), remote-health numeric and
garbage bodies, dashboard shape test round-trip assertion, direct
normalize_updated_at units (range guards, Z suffix, naive coercion,
non-finite floats), and a write_runtime_status -> read_runtime_status
round-trip proving the writer side stays tz-aware parseable.
The dashboard's own liveness surface could report healthy while every
authenticated request 500'd (e.g. wedged state DB) — /api/status carried
gateway-only fields, no storage/dashboard signal, and no middleware
counted unhandled exceptions.
- DashboardHealth state holder: rolling 5-min deque of unhandled-error
timestamps + last self-test result. last_error_type/last_error_path
are internal-only diagnostics — snapshot() exports counts/enums/
timestamps exclusively (PUBLIC_API_PATHS no-secrets contract).
- Outermost @app.middleware('http') (registered last) wraps call_next
in try/except: records + re-raises unhandled exceptions, and records
responses with status >= 500.
- /api/status gains 'components' {gateway, storage, dashboard,
platforms} + top-level 'overall' ok|degraded. storage reuses the
gateway readiness state_db probe (read-only, 1s-bounded) in an
executor; platforms derive ok/degraded from existing
gateway_platforms states.
- Authenticated self-test task started in the lifespan: every 60s an
in-process httpx ASGITransport GET of /api/sessions?limit=1 with the
real _SESSION_TOKEN, feeding the dashboard component. Skips cleanly
when httpx is unavailable and while the OAuth gate is engaged (the
legacy token is not honoured there).
Tests: middleware increments on raising route and on 5xx, window
expiry, components shape + overall, storage degraded when the state_db
probe fails, dashboard degraded after an error, no secret-bearing
fields in the public payload, self-test pass/fail recording (mocked
client) + a real ASGI round trip.
_readiness_work_counts()'s active_api_runs set is {"queued", "running",
"waiting_for_approval"} — it excludes "stopping", the status
_handle_stop_run() sets while a run is being interrupted. Since the stop
is fully cooperative (the run stays "stopping" — doing real
executor-thread work — until the agent actually notices the interrupt and
the task settles to "cancelled", an unbounded window, not a fixed
timeout), /health/detailed's background_queues.active_api_runs
undercounts real active work for that whole duration.
Fix: add "stopping" to the active-status set. background_queues.status
itself is hardcoded "ok" (gateway/readiness.py), so this doesn't change
overall readiness — it only corrects the count value external monitoring
tooling reads from this endpoint.
/health and /health/detailed resolve the version via importlib.metadata
first, falling back to hermes_cli.__version__. On editable/source
checkouts — including the standard git-based install that hermes-setup
performs — hermes_agent-*.dist-info can survive a source update
unchanged, so the health endpoints keep reporting the previous release
even though the running code (CLI, dashboard, release tags) is newer.
Stale metadata does not raise, so the source fallback never fires.
Flip the preference: use hermes_cli.__version__ (the runtime source of
truth shared by the CLI and dashboard) first, and fall back to
distribution metadata only when the source import fails. The
never-raise contract of the version probe is unchanged.
Observed live: CLI, dashboard, and pyproject all reported 0.18.2 while
/health returned 0.18.0 from a stale hermes_agent-0.18.0.dist-info left
behind by a source update.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- TUI /battery matches the CLI surface: adds `status` (live reading via
system.battery), and the help/usage strings now consistently read
[on|off|status].
- batteryLabel() renders `--` for an unknown percent so a null can never
surface as "null%" even without the showBattery guard.
- Move the system.battery RPC out of the config section into
"Methods: tools & system" where system.* RPCs belong.
The TUI retry-allowance follow-up made tui_gateway.entry.wait_for_mcp_discovery
delegate to hermes_cli.mcp_startup unconditionally when no entry-local thread
exists. But server._make_agent already calls the startup wait directly for
dashboard /api/ws sessions, so every non-stdio agent build paid the bounded
wait twice (caught by test_make_agent_waits_for_shared_mcp_discovery). Gate
the retry-spawn AND the delegated wait on _mcp_discovery_enabled, which only
the stdio TUI arms in main().
Builds on fazerluga-creator's #66981 (cherry-picked as the previous two
commits). start_background_mcp_discovery()'s retry allowance only fires
when the function is CALLED again, but tui_gateway/entry.py main() calls
it exactly once at startup — so a first discovery run that connected
nothing still latched the stdio TUI MCP-less for the whole session.
Re-invoke the idempotent spawn from wait_for_mcp_discovery() (the
per-agent-build wait) when the process is MCP-enabled, gated on a flag
set in main() so non-MCP sessions never pay the MCP import on the wait
path. Adds regression tests for both the retry re-invocation and the
non-MCP skip.
Review follow-up: the stdio hermes --tui path spawned its own one-shot
discovery thread, so the retry-after-zero-connected semantics added to
start_background_mcp_discovery() did not cover it.
Spawn TUI discovery through the shared owner and make the entry-side
wait_for_mcp_discovery() fall through to the shared owner when no local
thread exists (mcp_discovery_in_flight/join_mcp_discovery already consult
both owners). Keeps the cheap no-mcp-servers config guard on the TUI path.
Adds regression tests for the entry-side wait delegation.
start_background_mcp_discovery() sets _mcp_discovery_started once and never
resets it. If the first background run exits without connecting any MCP
server (startup cancellation, OOM restart, transient network failure), every
later call returns immediately and the process is permanently stuck with
zero MCP tools until a full restart.
Fix: when discovery is marked started but the thread is dead and no server
is connected, reset the flag and spawn a fresh discovery thread. Also log a
WARNING when a discovery run completes with zero connected servers, so the
condition is visible instead of silent.
Caught in production on a long-running gateway fleet where a gateway
restarted under memory pressure and came back with all MCP tools missing.
Builds on diffen77's #66547 (cherry-picked as the previous commits).
Extend _is_session_expired_error's iterative traversal to follow
__cause__/__context__ in addition to ExceptionGroup .exceptions — SDK
wrappers often raise a generic RuntimeError *from* the message-less
ClosedResourceError, leaving the transport signal reachable only via
the chain. The identity-visited set guards chain cycles (handlers
re-raising previously seen exceptions), and a bounded node budget
(_EXC_TRAVERSAL_MAX_NODES) caps pathological acyclic graphs.
Adds regression tests: cause/context chain detection, interruption
precedence through chains, cyclic cause/context termination, and
budget-bounded termination.
Builds on trevorgordon981's #50589 (cherry-picked as the previous commit).
The #50394 cooldown reset only ran inside the async _shutdown coroutine,
which is skipped on the empty-_servers fast path — the most common state
when a server failed to connect (failed servers are never recorded in
_servers). It was also skipped when the MCP loop wasn't running.
Clear _server_connect_retry_after/_server_connect_failures on the fast
path and in a final unconditional sweep so a full shutdown/restart always
re-attempts every configured server immediately. Adds regression tests
for both paths.
