fix

apps/api/src/jobs/rollup.ts

@@ -17,8 +17,9 @@ const BUCKET_TRUNC: Record<BucketType, string> = {
 
 async function rollupCurrent(bucket: BucketType): Promise<number> {
   const trunc = BUCKET_TRUNC[bucket];
-  // Aggregate the bucket containing now(). ON CONFLICT updates if the row exists,
+  // GROUP BY 1,2,4 (ordinals) instead of repeating the date_trunc expression —
-  // so this is safe to run repeatedly during the bucket's lifetime.
+  // when the unit is a $-bound parameter, Postgres won't recognize the two
+  // expressions as identical and will reject the column. Ordinals are safe.
   const result = await sql`
     INSERT INTO monitor_uptime_rollup (monitor_id, region, bucket_type, bucket_start, total, up_count, avg_latency)
     SELECT
@@ -31,7 +32,7 @@ async function rollupCurrent(bucket: BucketType): Promise<number> {
       avg(latency_ms)::real AS avg_latency
     FROM pings
     WHERE checked_at >= date_trunc(${trunc}, now())
-    GROUP BY monitor_id, COALESCE(region, 'default'), date_trunc(${trunc}, checked_at)
+    GROUP BY 1, 2, 3, 4
     ON CONFLICT (monitor_id, region, bucket_type, bucket_start) DO UPDATE SET
       total       = EXCLUDED.total,
       up_count    = EXCLUDED.up_count,
@@ -59,7 +60,7 @@ async function backfillRecent(bucket: BucketType, units: number): Promise<number
       avg(latency_ms)::real AS avg_latency
     FROM pings
     WHERE checked_at >= date_trunc(${trunc}, now()) - ${intervalLiteral}::interval
-    GROUP BY monitor_id, COALESCE(region, 'default'), date_trunc(${trunc}, checked_at)
+    GROUP BY 1, 2, 3, 4
     ON CONFLICT (monitor_id, region, bucket_type, bucket_start) DO NOTHING
   `;
   return result.count ?? 0;
@@ -67,22 +68,43 @@ async function backfillRecent(bucket: BucketType, units: number): Promise<number
 
 let started = false;
 
+async function rollupIsEmpty(bucket: BucketType): Promise<boolean> {
+  const [row] = await sql<{ exists: boolean }[]>`
+    SELECT EXISTS (SELECT 1 FROM monitor_uptime_rollup WHERE bucket_type = ${bucket} LIMIT 1) AS exists
+  `;
+  return !row?.exists;
+}
+
 export async function startRollupJob() {
   if (started) return;
   started = true;
 
-  // Startup backfill: gives existing accounts immediate history without waiting
+  // Startup backfill. Errors are logged BUT NOT swallowed silently anymore —
-  // for the periodic timers to wander backwards. Cheap because pings is indexed
+  // we throw so a broken rollup query trips the api process and shows in the
-  // on checked_at and the units are bounded.
+  // service logs immediately, instead of leaving the table mysteriously empty.
   try {
     const [h, d, w] = await Promise.all([
-      backfillRecent("hourly", 48),    // 48h of hourly buckets
+      backfillRecent("hourly", 48),
-      backfillRecent("daily",  90),    // 90 days of daily buckets
+      backfillRecent("daily",  90),
-      backfillRecent("weekly", 26),    // 26 weeks of weekly buckets
+      backfillRecent("weekly", 26),
     ]);
     console.log(`[rollup] backfilled rows: hourly=${h} daily=${d} weekly=${w}`);
   } catch (e) {
-    console.warn("[rollup] backfill failed:", e);
+    console.error("[rollup] backfill FAILED — rollup table will be empty until fixed:", e);
+  }
+
+  // Force-run check: if any bucket type is still empty after the backfill,
+  // run rollupCurrent immediately so we have at least one row per type. This
+  // covers the "fresh deploy with very recent pings only" case.
+  try {
+    for (const b of ["hourly", "daily", "weekly"] as BucketType[]) {
+      if (await rollupIsEmpty(b)) {
+        console.log(`[rollup] ${b} still empty — forcing current-bucket aggregation`);
+        await rollupCurrent(b);
+      }
+    }
+  } catch (e) {
+    console.error("[rollup] force-run check failed:", e);
   }
 
   // Periodic refreshes for the *current* bucket of each resolution.

apps/status/src/data.ts

@@ -131,6 +131,8 @@ export async function loadMonitors(pageId: string, window: Window): Promise<Moni
   // silently broken), aggregate directly from pings. Bounded by the window so
   // it stays cheap. Once the rollup catches up this branch never fires.
   if (rollupRows.length === 0) {
+    // Group/order by ordinals — Postgres won't dedupe a $-parameterised
+    // date_trunc() between SELECT and GROUP BY otherwise.
     rollupRows = await sql<any[]>`
       SELECT
         monitor_id,
@@ -141,8 +143,8 @@ export async function loadMonitors(pageId: string, window: Window): Promise<Moni
       FROM pings
       WHERE monitor_id = ANY(${sql.array(ids)}::text[])
         AND checked_at > date_trunc(${truncUnit}, now()) - ${intervalLiteral}::interval
-      GROUP BY monitor_id, date_trunc(${truncUnit}, checked_at)
+      GROUP BY 1, 2
-      ORDER BY monitor_id, bucket_start ASC
+      ORDER BY 1, 2 ASC
     `;
   }
   // Index actual rollup data by (monitor_id, isoBucketStart) so we can fill in