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feat(FN-4813): complete Step 5 — add isolation transition runtime restart path

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Fusion-Task-Id: FN-4813
Fusion-Task-Lineage: 846893a5-2afa-4817-8f64-8c444d2fd713
This commit is contained in:
Fusion (runfusion.ai)
2026-05-16 17:03:12 -07:00
committed by gsxdsm
parent 2ca18e983a
commit 63adddadf9
10 changed files with 513 additions and 96 deletions
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58
packages/engine/src/scheduler.ts
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@@ -999,64 +999,58 @@ export class Scheduler {
this.wasNodeDispatchValidationBlocked.delete(task.id);
}
// Enforce unavailable-node policy
// Enforce unavailable-node policy + owning-node handoff policy
if (effectiveNode.nodeId !== undefined && this.options.nodeHealthMonitor) {
let skipUnavailableNodePolicy = false;
if (freshTask.checkoutNodeId) {
if (freshTask.checkoutNodeId && freshTask.checkedOutBy) {
const ownerNodeHealth = this.options.nodeHealthMonitor.getNodeHealth(freshTask.checkoutNodeId);
if (ownerNodeHealth === "offline" || ownerNodeHealth === "error") {
const handoffDecision = decideOwningNodeHandoff({
task: freshTask,
ownerNodeId: freshTask.checkoutNodeId,
ownerNodeHealth,
localNodeId: settings.defaultNodeId ?? "local",
localNodeId: "local",
handoffPolicy: settings.owningNodeHandoffPolicy,
});
if (handoffDecision.action === "park") {
if (!this.wasNodeBlocked.has(task.id)) {
this.wasNodeBlocked.add(task.id);
schedulerLog.log(`Task ${task.id} dispatch blocked — ${handoffDecision.reason}`);
await this.store.logEntry(task.id, handoffDecision.reason);
const reason = `Owning-node handoff parked dispatch: ${handoffDecision.reason}`;
schedulerLog.log(`Task ${task.id} dispatch blocked — ${reason}`);
await this.store.logEntry(task.id, reason);
}
continue;
}
await this.store.logEntry(task.id, `Owning-node handoff applied: ${handoffDecision.reason}`);
if (handoffDecision.action === "reassign-local") {
effectiveNode = { nodeId: undefined, source: "local" };
await this.store.logEntry(task.id, `Owner handoff: ${handoffDecision.reason}`);
} else if (handoffDecision.action === "reassign-any") {
skipUnavailableNodePolicy = true;
await this.store.logEntry(task.id, `Owner handoff: ${handoffDecision.reason}`);
}
}
}
if (!skipUnavailableNodePolicy) {
const nodeHealth = this.options.nodeHealthMonitor.getNodeHealth(effectiveNode.nodeId);
const decision = applyUnavailableNodePolicy({
effectiveNode,
nodeHealth,
policy: settings.unavailableNodePolicy,
});
const nodeHealth = this.options.nodeHealthMonitor.getNodeHealth(effectiveNode.nodeId);
const decision = applyUnavailableNodePolicy({
effectiveNode,
nodeHealth,
policy: settings.unavailableNodePolicy,
});
if (!decision.allowed) {
if (!this.wasNodeBlocked.has(task.id)) {
this.wasNodeBlocked.add(task.id);
schedulerLog.log(`Task ${task.id} dispatch blocked — ${decision.reason}`);
await this.store.logEntry(task.id, decision.reason);
}
continue;
}
this.wasNodeBlocked.delete(task.id);
if (decision.fallbackToLocal) {
schedulerLog.log(`Task ${task.id} falling back to local — ${decision.reason}`);
if (!decision.allowed) {
if (!this.wasNodeBlocked.has(task.id)) {
this.wasNodeBlocked.add(task.id);
schedulerLog.log(`Task ${task.id} dispatch blocked — ${decision.reason}`);
await this.store.logEntry(task.id, decision.reason);
effectiveNode = { nodeId: undefined, source: "local" };
}
continue;
}
this.wasNodeBlocked.delete(task.id);
if (decision.fallbackToLocal) {
schedulerLog.log(`Task ${task.id} falling back to local — ${decision.reason}`);
await this.store.logEntry(task.id, decision.reason);
effectiveNode = { nodeId: undefined, source: "local" };
}
}