Fix: API Latency Spike After Deploy
Roll back to the previous version if impact is active
Sudden latency after deploy is usually a DB query regression, a new blocking call, or a cold cache. Roll back is the safest first move while you investigate.
Frequently Asked Questions
What causes API Latency Spike After Deploy?
Sudden latency after deploy is usually a DB query regression, a new blocking call, or a cold cache. Roll back is the safest first move while you investigate.
How to fix API Latency Spike After Deploy?
Compare the last two deploys — review DB query plans and outbound calls. Roll back if customer impact is active, then diff commits and enable slow-query logging.
Example fix from Kintify Fix
Input: P99 latency doubled after latest deploy
Output: Compare the last two deploys — review DB query plans and outbound calls. Roll back if customer impact is active, then diff commits and enable slow-query logging.
Used by developers debugging real production systems