{"id":339,"date":"2026-03-09T02:00:29","date_gmt":"2026-03-09T02:00:29","guid":{"rendered":"https:\/\/quantusintel.group\/osint\/blog\/2026\/03\/09\/your-app-just-went-down-heres-exactly-what-to-do-in-the-next-60-minutes\/"},"modified":"2026-03-09T02:00:29","modified_gmt":"2026-03-09T02:00:29","slug":"your-app-just-went-down-heres-exactly-what-to-do-in-the-next-60-minutes","status":"publish","type":"post","link":"https:\/\/quantusintel.group\/osint\/blog\/2026\/03\/09\/your-app-just-went-down-heres-exactly-what-to-do-in-the-next-60-minutes\/","title":{"rendered":"Your App Just Went Down. Here\u2019s Exactly What to Do in the Next 60 Minutes."},"content":{"rendered":"
\"\"<\/figure>\n

Most engineers freeze. Here\u2019s the checklist that keeps you moving when everything is on\u00a0fire.<\/h4>\n

Your phone\u00a0buzzes.<\/p>\n

Alert. Error rate 34%. Then 67%. Then the Slack messages\u00a0start.<\/p>\n

Your hands are already moving before your brain catches up. You open the dashboard. Red everywhere. Users can\u2019t checkout. Can\u2019t login. Can\u2019t do the thing your entire business depends on them\u00a0doing.<\/p>\n

You have 60 minutes before this becomes a very different kind of\u00a0problem.<\/p>\n

Here\u2019s exactly what to\u00a0do.<\/p>\n

First: Stop Doing the One Thing Everyone\u00a0Does<\/h3>\n

Before the checklist\u200a\u2014\u200aa\u00a0warning.<\/p>\n

The single most common mistake engineers make in the first 5 minutes of an outage is jumping straight to fixing without understanding.<\/strong><\/p>\n

You see a red metric. You think you know what it is. You\u2019ve seen something like this before. You start making\u00a0changes.<\/p>\n

Twenty minutes later, the service is still down, you\u2019ve deployed two hotfixes that didn\u2019t work, your logs are now polluted with your own debugging noise, and you have less idea what\u2019s happening than when you\u00a0started.<\/p>\n

Slow down. Diagnose first. Fix\u00a0second.<\/p>\n

This is not intuitive when everything is on fire. It is always\u00a0correct.<\/p>\n

Minutes 0\u20135: Communicate Before You Understand<\/h3>\n

The first thing you do is not fix the problem. The first thing you do is tell people you know about\u00a0it.<\/p>\n

Post in your incident channel immediately:<\/p>\n

\u201cP1 in progress. Service X is down \/ degraded. Investigating now. Updates every 10 minutes.\u201d<\/em><\/strong><\/p><\/blockquote>\n

That\u2019s it. You don\u2019t need to know the cause. You don\u2019t need a fix. You need to establish that a human is aware and working on it\u200a\u2014\u200abefore your CEO finds out from a customer\u00a0tweet.<\/p>\n

Why this matters:<\/strong> The silence after an alert is the most damaging part of any incident. Every minute you spend silently debugging without communicating is a minute your stakeholders are imagining the worst. A short, honest \u201cwe know and we\u2019re on it\u201d message buys you enormous amounts of trust and\u00a0time.<\/p>\n

Do this before you touch anything\u00a0else.<\/p>\n

Minutes 5\u201315: Diagnose Without Touching Production<\/h3>\n

Now you investigate. And you do it without making any changes\u00a0yet.<\/p>\n

The questions to answer, in\u00a0order:<\/strong><\/p>\n

1. When did it start?<\/strong> Check your monitoring. Find the exact timestamp when error rates or latency began changing. This is your anchor point. Everything else is relative to this\u00a0moment.<\/p>\n

2. What changed around that time?<\/strong> Deployments. Config changes. Cron jobs. Scheduled tasks. Database migrations. Feature flags. Someone\u2019s manual \u201cquick fix\u201d from this afternoon. Check all of\u00a0it.<\/p>\n

The uncomfortable truth: most production incidents are caused by something that changed.<\/strong> Not some mysterious emergent failure\u200a\u2014\u200asomething someone did. Find what changed 5\u201330 minutes before the incident started and you\u2019ve found your primary suspect 70% of the\u00a0time.<\/p>\n

3. What does the error actually say?<\/strong> Read the error message. The full one. Not the first line\u200a\u2014\u200athe whole stack trace. Engineers miss root causes constantly because they stop reading at the first familiar-looking line.<\/p>\n

4. Is it getting better, worse, or stable?<\/strong> This determines urgency. A rapidly deteriorating situation needs different decisions than a stable degradation.<\/p>\n

Do not touch production until you can answer all four questions. This feels like lost time. It is\u00a0not.<\/p>\n

Minutes 15\u201325: Make One\u00a0Decision<\/h3>\n

By now you have a hypothesis. Maybe you\u2019re certain. Maybe you\u2019re 60% sure. Either way, you need to make one decision:<\/p>\n

Rollback or fix\u00a0forward?<\/strong><\/p>\n

Rollback<\/strong> if: a recent deployment is the likely cause and you can revert cleanly. This is almost always faster than a hotfix. Engineers resist rollbacks emotionally\u200a\u2014\u200ait feels like admitting defeat. It isn\u2019t. It\u2019s engineering.<\/p>\n

Fix forward<\/strong> if: the cause is environmental (database, third-party service, infrastructure), or if rolling back would cause its own problems (database migrations that can\u2019t be undone, data already written).<\/p>\n

Pick one. Commit to it. Don\u2019t do both simultaneously\u200a\u2014\u200ayou\u2019ll lose the ability to understand what actually fixed\u00a0it.<\/p>\n

Minutes 25\u201340: Execute and\u00a0Watch<\/h3>\n

You\u2019re deploying the fix or the rollback. While it propagates:<\/p>\n

Watch the right metrics.<\/strong> Not all metrics\u200a\u2014\u200athe two or three that tell you definitively whether users are being served correctly. Error rate. Latency. Successful transactions. Pick the signal before the fix goes out so you know exactly what \u201cworking\u201d looks\u00a0like.<\/p>\n

Don\u2019t declare victory early.<\/strong> Wait for the metrics to stabilize, not just improve. I\u2019ve watched engineers declare an incident resolved because the error rate dropped from 60% to 15%, then step away\u200a\u2014\u200aand come back to 80% five minutes later because the fix only worked for some\u00a0traffic.<\/p>\n

Keep communicating.<\/strong> Another update to the incident\u00a0channel:<\/p>\n

\u201cFix deployed at [time]. Monitoring for stabilization. Will confirm resolved in 10 minutes.\u201d<\/em><\/strong><\/p><\/blockquote>\n

Minutes 40\u201355: Confirm Resolution<\/h3>\n

The metrics look good. Resist the urge to close the incident immediately.<\/p>\n

Check the\u00a0edges:<\/strong><\/p>\n