https://wiki.quizz.vn/ 2026-04-15T18:10:50+00:00 https://wiki.quizz.vn/ https://wiki.quizz.vn/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2025-12-28T07:25:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:ops:cloudwatch:alarms&rev=1766906716&do=diff CloudWatch Alarms What it is: A rule that watches a metric and takes action when it crosses a threshold. What it’s for: * Notify (SNS), scale (ASG), or trigger automation. * Detect outages or performance degradation early. Key ideas: * Alarm states: OK, ALARM, INSUFFICIENT_DATA. text/html 2025-12-28T07:24:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:ops:cloudwatch:logs&rev=1766906692&do=diff CloudWatch Logs What it is: A service to collect, store, and search log data from AWS resources and applications. What it’s for: * Centralize application/system logs. * Search logs to debug incidents. * Set metric filters and alerts from logs. text/html 2025-12-28T07:25:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.quizz.vn/doku.php?id=aws:ops:cloudwatch:metrics&rev=1766906704&do=diff CloudWatch Metrics What it is: Time-series performance data (CPUUtilization, RequestCount, Latency, etc.). What it’s for: * Observe system health over time. * Trigger alarms and auto scaling based on thresholds. Key ideas: * Metrics can be AWS-provided or custom.