Compare commits
3 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
 Dai Ha
|
e966cbadf9 | ||
|
Dai Ha
|
c87cc25aa6 | ||
|
Dai Ha
|
3fb331145a |
@@ -381,13 +381,18 @@ public final class LeadRollover {
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*/
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private void runRollover(PendingRollover p, FleetConfig.LeadRollover cfg) {
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String lead = p.leadTerminal();
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boolean turnSettled = waitUntilAtTurnBoundary(lead, cfg.turnSettleSeconds());
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if (!turnSettled) {
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log.warn("lead-rollover: pane {} did not reach a turn boundary (IDLE or DONE) within {}s "
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+ "after confirm() — refusing to send /clear at all; the calling lead's "
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+ "own turn is still live and clearing it now would destroy live context "
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+ "(token={})",
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lead, cfg.turnSettleSeconds(), p.token());
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long rollStartMillis = nowMillis.getAsLong();
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TurnSettleResult turnResult = waitUntilAtTurnBoundary(lead, cfg.turnSettleSeconds());
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if (!turnResult.settled()) {
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// fleetd #494 follow-up: this line had the SAME defect as the /clear-timeout line below
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// — cfg.turnSettleSeconds() is the CONFIGURED budget, not how long this wait actually
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// ran. Print the measured elapsed time alongside it, labelled, exactly like the /clear
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// path already does.
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log.warn("lead-rollover: pane {} did not reach a turn boundary (IDLE or DONE) after "
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+ "confirm() — refusing to send /clear at all; the calling lead's own "
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+ "turn is still live and clearing it now would destroy live context "
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+ "(token={}, configured={}s elapsed={}ms)",
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lead, p.token(), cfg.turnSettleSeconds(), turnResult.elapsedMillis());
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return;
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}
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@@ -395,15 +400,22 @@ public final class LeadRollover {
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// /clear is housekeeping, not a delegated turn, and routing it through Injector wedges the
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// pane forever (see this class's javadoc).
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agents.send(lead, "/clear");
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boolean clearSettled = waitForClearPickupAndSettle(lead, cfg.clearSettleSeconds());
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if (!clearSettled) {
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log.warn("lead-rollover: pane {} did not reach a turn boundary (IDLE or DONE) within {}s "
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+ "after /clear — NOT sending bootstrapText (token={})",
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lead, cfg.clearSettleSeconds(), p.token());
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ClearSettleResult clearResult = waitForClearPickupAndSettle(lead, cfg.clearSettleSeconds());
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if (!clearResult.settled()) {
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// fleetd #494: cfg.clearSettleSeconds() is the CONFIGURED budget, not how long the wait
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// actually ran — an operator reading only that number wrongly believes it is a measured
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// duration. Print the measured elapsed time and nudge count alongside it, each labelled,
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// so the two can be compared at a glance.
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log.warn("lead-rollover: pane {} did not reach a turn boundary (IDLE or DONE) after "
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+ "/clear — NOT sending bootstrapText (token={}, configured={}s "
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+ "elapsed={}ms nudges={})",
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lead, p.token(), cfg.clearSettleSeconds(), clearResult.elapsedMillis(),
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clearResult.nudges());
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return;
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}
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agents.send(lead, cfg.bootstrapTextFor(p.handoverPath()));
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log.info("lead-rollover: rolled token={} lead={}", p.token(), lead);
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long rollElapsedMillis = nowMillis.getAsLong() - rollStartMillis;
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log.info("lead-rollover: rolled token={} lead={} elapsedMs={}", p.token(), lead, rollElapsedMillis);
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}
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/** Drop a pending request without rolling. @return whether a pending request existed for {@code token} */
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@@ -475,9 +487,15 @@ public final class LeadRollover {
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* gate exists to prevent. Do not "simplify" this back to {@code injectable()}. ({@link
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* #waitForClearPickupAndSettle} keeps the same exclusion of {@code BLOCKED}, for the same
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* reason, on the second wait.)
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*
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* @return a {@link TurnSettleResult} whose {@code settled()} is {@code true} once a real
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* boundary was observed, {@code false} if {@code settleSeconds} elapses first.
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* {@code elapsedMillis()} is a MEASURED value from the injected {@link #nowMillis}
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* clock, never the configured {@code settleSeconds} budget (fleetd #494 follow-up).
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*/
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private boolean waitUntilAtTurnBoundary(String target, int settleSeconds) {
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long deadline = nowMillis.getAsLong() + TimeUnit.SECONDS.toMillis(settleSeconds);
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private TurnSettleResult waitUntilAtTurnBoundary(String target, int settleSeconds) {
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long startMillis = nowMillis.getAsLong();
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long deadline = startMillis + TimeUnit.SECONDS.toMillis(settleSeconds);
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while (nowMillis.getAsLong() < deadline) {
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AgentStatus status;
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try {
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@@ -488,13 +506,20 @@ public final class LeadRollover {
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status = null;
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}
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if (status == AgentStatus.IDLE || status == AgentStatus.DONE) {
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return true;
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return new TurnSettleResult(true, nowMillis.getAsLong() - startMillis);
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}
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settleSleeper.run();
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}
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return false;
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return new TurnSettleResult(false, nowMillis.getAsLong() - startMillis);
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}
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/**
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* The measured outcome of {@link #waitUntilAtTurnBoundary} — fleetd #494 follow-up. The sibling
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* of {@link ClearSettleResult} for the FIRST wait, which never nudges, so it carries no nudge
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* count.
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*/
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private record TurnSettleResult(boolean settled, long elapsedMillis) {}
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/**
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* The SECOND wait in {@link #runRollover} — after {@code /clear} has been sent, waits for it to
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* settle, bounded by {@code settleSeconds}. <strong>fleetd #489 — the paste-race fix.</strong>
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@@ -524,8 +549,9 @@ public final class LeadRollover {
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* Claude Code prompt is a no-op, so repeating it is safe;</li>
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* <li>the {@code PICKUP_GRACE_POLLS}th consecutive such poll, with {@code WORKING} still never
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* observed, releases rather than wedges the roll instead of nudging again — the same
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* choice {@code Injector} makes — and returns {@code true} anyway, logged at {@code info}
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* so an operator can see which path ran;</li>
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* choice {@code Injector} makes — and returns {@code settled() == true} anyway, logged at
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* {@code warn} with the measured elapsed time (fleetd #494) so an operator can see which
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* path ran and how long it actually took;</li>
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* <li>once {@code WORKING} has been observed, nudging stops and this instead waits for a real
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* {@code working → IDLE/DONE} completion boundary before returning {@code true}.</li>
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* </ul>
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@@ -541,15 +567,20 @@ public final class LeadRollover {
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* swallowed and logged at {@code debug}, exactly like {@code Injector.java:437-442} — a failed
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* nudge must not abort the roll.
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*
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* @return {@code true} once {@code /clear} has settled, or once the nudge budget was exhausted
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* with no pickup ever observed (released rather than wedged); {@code false} if {@code
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* settleSeconds} elapses first — the caller must NOT send {@code bootstrapText} in that
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* case, exactly as before this fix
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* @return a {@link ClearSettleResult} whose {@code settled()} is {@code true} once {@code
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* /clear} has settled, or once the nudge budget was exhausted with no pickup ever
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* observed (released rather than wedged); {@code false} if {@code settleSeconds} elapses
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* first — the caller must NOT send {@code bootstrapText} in that case, exactly as before
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* this fix. {@code elapsedMillis()} and {@code nudges()} are MEASURED values (from the
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* injected {@link #nowMillis} clock and an actual nudge count), never the configured
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* {@code settleSeconds} budget (fleetd #494).
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*/
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private boolean waitForClearPickupAndSettle(String target, int settleSeconds) {
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long deadline = nowMillis.getAsLong() + TimeUnit.SECONDS.toMillis(settleSeconds);
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private ClearSettleResult waitForClearPickupAndSettle(String target, int settleSeconds) {
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long startMillis = nowMillis.getAsLong();
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long deadline = startMillis + TimeUnit.SECONDS.toMillis(settleSeconds);
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boolean pickedUp = false; // a WORKING sample has been observed since /clear was sent
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int idlePollsAwaitingPickup = 0;
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int nudges = 0;
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while (nowMillis.getAsLong() < deadline) {
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AgentStatus status;
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try {
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@@ -563,26 +594,56 @@ public final class LeadRollover {
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pickedUp = true;
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} else if (status == AgentStatus.IDLE || status == AgentStatus.DONE) {
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if (pickedUp) {
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return true; // a real WORKING -> IDLE/DONE completion boundary
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// a real WORKING -> IDLE/DONE completion boundary
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return new ClearSettleResult(true, nowMillis.getAsLong() - startMillis, nudges);
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}
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if (++idlePollsAwaitingPickup >= PICKUP_GRACE_POLLS) {
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log.info("lead-rollover: /clear on {} was never observed as WORKING after {} "
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long elapsedMillis = nowMillis.getAsLong() - startMillis;
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// fleetd #494: this release trades a possibly-unsubmitted /clear for progress
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// instead of wedging the roll — that trade is deliberate and stays. But it is
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// also exactly the case that reported false success in the real incident (the
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// whole roll "succeeded" after 438ms of a 20s budget), so raise it to WARN and
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// print the MEASURED elapsed time next to the target pane, not just the count.
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//
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// fleetd #494 follow-up (2nd pass): BOTH numbers in this line must come from
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// the loop's own counters, never from the PICKUP_GRACE_POLLS constant.
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// `idlePollsAwaitingPickup` and `nudges` each have exactly one write site in
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// this loop, on the same branch, so on this branch they cannot differ from
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// PICKUP_GRACE_POLLS / PICKUP_GRACE_POLLS - 1 today — no test can prove the
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// difference on this line, and printing the counters does not change that.
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// What it does buy: one source of truth instead of two, so a later change to
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// the loop (an early return, a second increment site, a different exit
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// condition) cannot leave this message reporting a number the loop no longer
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// produces. The place where `nudges` genuinely varies with the run — and is
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// covered by a test that can tell it apart from a constant — is the
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// /clear-timeout warn in runRollover, which prints clearResult.nudges().
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log.warn("lead-rollover: /clear on {} was never observed as WORKING after {} "
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+ "consecutive IDLE/DONE polls ({} of those were nudged) — "
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+ "releasing rather than wedging the roll",
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target, PICKUP_GRACE_POLLS, PICKUP_GRACE_POLLS - 1);
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return true;
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+ "releasing rather than wedging the roll (elapsed={}ms)",
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target, idlePollsAwaitingPickup, nudges, elapsedMillis);
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return new ClearSettleResult(true, elapsedMillis, nudges);
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}
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try {
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agents.submit(target); // nudge a raced Enter (CB-113) so /clear actually submits
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} catch (RuntimeException e) {
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log.debug("lead-rollover: resubmit to {} failed (will retry next poll): {}",
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target, e.getMessage());
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} finally {
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nudges++; // an attempted nudge, whether or not the submit call itself threw
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}
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}
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// AgentStatus.BLOCKED or UNKNOWN (or an unreadable status, above): neither a pickup
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// signal nor a boundary — keep polling without nudging or releasing.
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settleSleeper.run();
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}
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return false;
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return new ClearSettleResult(false, nowMillis.getAsLong() - startMillis, nudges);
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}
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/**
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* The measured outcome of {@link #waitForClearPickupAndSettle} — fleetd #494. Carries the
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* MEASURED elapsed time (from the injected {@link #nowMillis} clock) and nudge count alongside
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* the settle/timeout decision, so callers can log them instead of the configured budget, which
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* is not how long the wait actually ran.
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*/
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private record ClearSettleResult(boolean settled, long elapsedMillis, int nudges) {}
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}
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@@ -1,5 +1,9 @@
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package dev.ltms.fleet.lead;
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import ch.qos.logback.classic.Level;
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import ch.qos.logback.classic.Logger;
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import ch.qos.logback.classic.spi.ILoggingEvent;
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import ch.qos.logback.core.read.ListAppender;
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import com.fasterxml.jackson.databind.JsonNode;
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import dev.ltms.fleet.config.FleetConfig;
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import dev.ltms.fleet.herdr.AgentControl;
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@@ -9,6 +13,7 @@ import dev.ltms.fleet.herdr.HerdrException;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.io.TempDir;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.nio.file.Files;
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@@ -854,4 +859,207 @@ class LeadRolloverTest {
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assertFalse(bootstrapSent.contains("\"handover.md\""),
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"must not name the raw relative configured value in the text actually sent");
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}
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// ---- fleetd #494: the log lines must print MEASURED values, never the configured budget --
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private static ListAppender<ILoggingEvent> attachLog() {
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Logger logger = (Logger) LoggerFactory.getLogger(LeadRollover.class);
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logger.setLevel(Level.DEBUG);
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ListAppender<ILoggingEvent> appender = new ListAppender<>();
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appender.start();
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logger.addAppender(appender);
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return appender;
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}
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private static void detachLog(ListAppender<ILoggingEvent> appender) {
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((Logger) LoggerFactory.getLogger(LeadRollover.class)).detachAppender(appender);
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}
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private static ILoggingEvent lastEventContaining(ListAppender<ILoggingEvent> events, String substring) {
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return events.list.stream()
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.filter(e -> e.getFormattedMessage().contains(substring))
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.reduce((_, b) -> b)
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.orElseThrow(() -> new AssertionError("no log event contained \"" + substring
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+ "\"; got: " + events.list.stream().map(ILoggingEvent::getFormattedMessage).toList()));
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}
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@Test
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@DisplayName("[fleetd #494] the /clear-timeout warn line prints the MEASURED elapsed time and "
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+ "nudge count next to the configured budget, never the configured value alone")
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void clearTimeoutLogPrintsMeasuredElapsedAndNudgesNotJustConfigured() throws IOException {
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// Idle until /clear is sent, then permanently WORKING (a genuinely stuck /clear that never
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// reaches a completion boundary) — isolates the SECOND wait exactly like
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// clearThatNeverSettlesAfterwardsNeverSendsBootstrapText, but with a clock that ADVANCES on
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// every read so the measured elapsed time is a deterministic, non-zero value distinct from
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// the configured budget — pinning fleetd #494's fix, not just its absence of a hang.
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FakeHerdr fake = new FakeHerdr();
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HerdrClient flipsAfterClear = new HerdrClient() {
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@Override
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public JsonNode call(String method, Object params) throws HerdrException {
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JsonNode result = fake.call(method, params);
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if ("agent.prompt".equals(method) && String.valueOf(params).contains("/clear")) {
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fake.agentStatus("working");
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}
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return result;
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}
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@Override
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public void close() {
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fake.close();
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}
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};
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Path handover = writeHandover("handover contents");
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FleetConfig.LeadRollover config =
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new FleetConfig.LeadRollover(handover.toString(), true, 3600, 20, 1 /*clearSettleSeconds*/, "boot text");
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AtomicLong clock = new AtomicLong(1_000);
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LeadRollover rollover = newRollover(flipsAfterClear, config, () -> clock.addAndGet(500));
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ListAppender<ILoggingEvent> events = attachLog();
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try {
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LeadRollover.PendingRollover pending = rollover.open(LEAD, "context is full");
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LeadRollover.RollDecision decision = rollover.confirm(LEAD, pending.token(), true);
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assertTrue(decision.accepted(), "every synchronous gate passes; the refusal is logged "
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+ "only, deep inside the deferred continuation");
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ILoggingEvent event = lastEventContaining(events, "NOT sending bootstrapText");
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assertEquals(Level.WARN, event.getLevel());
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String message = event.getFormattedMessage();
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assertTrue(message.contains("configured=1s"), "must label the configured budget: " + message);
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assertTrue(message.contains("elapsed=1500ms"), "must print the MEASURED elapsed time — "
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+ "with this fixture's advancing clock, the wait actually ran 1500ms against a "
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+ "1s(=1000ms) configured budget: " + message);
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assertTrue(message.contains("nudges=0"), "must print the measured nudge count (0 here — "
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+ "the pane was WORKING throughout, never IDLE/DONE, so no nudge was ever sent): "
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+ message);
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assertFalse(message.contains("within 1s"), "must not present the configured budget as if "
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+ "it were the measured wait duration: " + message);
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} finally {
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detachLog(events);
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}
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}
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@Test
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@DisplayName("[fleetd #494] the /clear pickup-grace release line is WARN (was INFO) and prints "
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+ "the measured elapsed time next to the target pane")
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void clearGraceReleaseLogIsWarnWithMeasuredElapsed() throws IOException {
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// Default idle throughout — no WORKING sample is ever observed, so the pickup-grace wait
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// exhausts PICKUP_GRACE_POLLS and releases rather than wedging (see
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// clearPickupIsNudgedBeforeBootstrapTextWhenPaneStaysIdle for the un-logged half of this
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// scenario). A self-advancing clock makes the measured elapsed time deterministic and
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// provably distinct from a bare poll/nudge count.
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FakeHerdr herdr = new FakeHerdr();
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Path handover = writeHandover("handover contents");
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FleetConfig.LeadRollover config = cfg(handover.toString()); // turnSettleSeconds=clearSettleSeconds=20
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AtomicLong clock = new AtomicLong(1_000);
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LeadRollover rollover = newRollover(herdr, config, () -> clock.addAndGet(500));
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ListAppender<ILoggingEvent> events = attachLog();
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try {
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LeadRollover.PendingRollover pending = rollover.open(LEAD, "context is full");
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LeadRollover.RollDecision decision = rollover.confirm(LEAD, pending.token(), true);
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assertTrue(decision.accepted(), "expected approval; got: " + decision.reason()
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+ " / " + decision.detail());
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ILoggingEvent event = lastEventContaining(events, "releasing rather than wedging the roll");
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assertEquals(Level.WARN, event.getLevel(), "the grace-limit release must be WARN, not "
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+ "INFO — it is exactly the case that reported false success in the real incident "
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+ "this fix comes from (a roll that 'succeeded' after 438ms of a 20s budget)");
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String message = event.getFormattedMessage();
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assertTrue(message.contains(LEAD), "must name the target pane: " + message);
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assertTrue(message.contains("elapsed=4500ms"), "must print the MEASURED elapsed time — "
|
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+ "with this fixture's advancing clock, the wait ran 4500ms before releasing: "
|
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+ message);
|
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// fleetd #494 follow-up (2nd pass): both numbers here are DELIBERATE plain literals,
|
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// not derived from LeadRollover.PICKUP_GRACE_POLLS. A version of this assertion that
|
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// reads "(" + (LeadRollover.PICKUP_GRACE_POLLS - 1) + " of those were nudged)" builds
|
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// its expectation the same way the production code used to build the log line, so it
|
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// cannot tell a fixed constant apart from the measured counter — proved by reverting
|
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// the production fix and re-running: that mutant stayed green under the old assertion.
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// If PICKUP_GRACE_POLLS ever changes, THIS TEST MUST FAIL and a human must look at the
|
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// new message and update the literals below, not just re-derive them.
|
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assertTrue(message.contains("after 8 consecutive IDLE/DONE polls (7 of those were nudged)"),
|
||||
"must print the measured poll count and nudge count as plain numbers, not the "
|
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+ "PICKUP_GRACE_POLLS constant standing in for either: " + message);
|
||||
} finally {
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detachLog(events);
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||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
@DisplayName("[fleetd #494] the success line prints the measured elapsed time for the whole roll")
|
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void successLogPrintsMeasuredElapsedForTheWholeRoll() throws IOException {
|
||||
// Same fixture as clearGraceReleaseLogIsWarnWithMeasuredElapsed: default idle throughout, so
|
||||
// the grace release fires and the roll still goes on to send bootstrapText and log success.
|
||||
// This is deliberately the SAME shape as the real incident (a roll that "succeeds" quickly)
|
||||
// — the missing signal was the elapsed time on this exact line.
|
||||
FakeHerdr herdr = new FakeHerdr();
|
||||
Path handover = writeHandover("handover contents");
|
||||
FleetConfig.LeadRollover config = cfg(handover.toString());
|
||||
AtomicLong clock = new AtomicLong(1_000);
|
||||
LeadRollover rollover = newRollover(herdr, config, () -> clock.addAndGet(500));
|
||||
|
||||
ListAppender<ILoggingEvent> events = attachLog();
|
||||
try {
|
||||
LeadRollover.PendingRollover pending = rollover.open(LEAD, "context is full");
|
||||
LeadRollover.RollDecision decision = rollover.confirm(LEAD, pending.token(), true);
|
||||
|
||||
assertTrue(decision.accepted(), "expected approval; got: " + decision.reason()
|
||||
+ " / " + decision.detail());
|
||||
|
||||
ILoggingEvent event = lastEventContaining(events, "lead-rollover: rolled");
|
||||
assertEquals(Level.INFO, event.getLevel());
|
||||
String message = event.getFormattedMessage();
|
||||
// fleetd #494 follow-up: waitUntilAtTurnBoundary now also reads the injected clock one
|
||||
// extra time (to compute ITS OWN measured elapsed on the success path), so the shared
|
||||
// fixture clock advances by one more 500ms tick before the roll finishes than it did
|
||||
// before that follow-up — 7000ms, not 6500ms.
|
||||
assertTrue(message.contains("elapsedMs=7000"), "must print the MEASURED elapsed time for "
|
||||
+ "the whole roll — with this fixture's advancing clock, the full roll (turn-settle "
|
||||
+ "wait + /clear wait + bootstrapText) took 7000ms: " + message);
|
||||
} finally {
|
||||
detachLog(events);
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
@DisplayName("[fleetd #494 follow-up] the turn-settle timeout warn line prints the MEASURED "
|
||||
+ "elapsed time next to the configured budget, never the configured value alone")
|
||||
void turnTimeoutLogPrintsMeasuredElapsedNotJustConfigured() throws IOException {
|
||||
// The brief that named the four items this ticket fixed left this exact sibling line out —
|
||||
// "did not reach a turn boundary (IDLE or DONE) within {}s after confirm()" — even though it
|
||||
// has the identical defect shape one method below. Same fixture shape as
|
||||
// clearTimeoutLogPrintsMeasuredElapsedAndNudgesNotJustConfigured, but for the FIRST wait: the
|
||||
// calling lead's own pane never goes idle, so waitUntilAtTurnBoundary times out.
|
||||
FakeHerdr herdr = new FakeHerdr();
|
||||
herdr.agentStatus("working"); // the calling lead's own pane — never goes idle in this test
|
||||
Path handover = writeHandover("handover contents");
|
||||
FleetConfig.LeadRollover config =
|
||||
new FleetConfig.LeadRollover(handover.toString(), true, 3600, 1 /*turnSettleSeconds*/, 20, "text");
|
||||
AtomicLong clock = new AtomicLong(1_000);
|
||||
LeadRollover rollover = newRollover(herdr, config, () -> clock.addAndGet(500));
|
||||
|
||||
ListAppender<ILoggingEvent> events = attachLog();
|
||||
try {
|
||||
LeadRollover.PendingRollover pending = rollover.open(LEAD, "context is full");
|
||||
LeadRollover.RollDecision decision = rollover.confirm(LEAD, pending.token(), true);
|
||||
|
||||
assertTrue(decision.accepted(), "every synchronous gate should pass; the refusal happens "
|
||||
+ "only inside the deferred continuation, which this test's synchronous runner "
|
||||
+ "has already run to completion by the time confirm() returns");
|
||||
|
||||
ILoggingEvent event = lastEventContaining(events, "refusing to send /clear at all");
|
||||
assertEquals(Level.WARN, event.getLevel());
|
||||
String message = event.getFormattedMessage();
|
||||
assertTrue(message.contains("configured=1s"), "must label the configured budget: " + message);
|
||||
assertTrue(message.contains("elapsed=1500ms"), "must print the MEASURED elapsed time — "
|
||||
+ "with this fixture's advancing clock, the wait actually ran 1500ms against a "
|
||||
+ "1s(=1000ms) configured budget: " + message);
|
||||
assertFalse(message.contains("within 1s"), "must not present the configured budget as if "
|
||||
+ "it were the measured wait duration: " + message);
|
||||
} finally {
|
||||
detachLog(events);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user