Troubleshooting Application Failures

by aws188af2f810ceNo license2.8K starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated today

Troubleshoots failing applications by discovering and analyzing CloudWatch log groups to identify error patterns, root causes, and actionable solutions. Use when an application is experiencing failures and log-based diagnosis is needed.

Instructions onlyDevOps & Cloud

AI-generated overview

Diagnoses failing applications by analyzing CloudWatch log groups to find error patterns, root causes, and fixes.

What it does: Provides a procedure for troubleshooting application failures through CloudWatch log analysis. It covers discovering relevant log groups, searching for error patterns and stack traces, performing root cause analysis, and producing prioritized remediation recommendations. It also addresses common obstacles such as missing log groups, access denied errors, and query timeouts.
When to use it: Use when an application is failing and log-based diagnosis is needed. It fits situations where CloudWatch logs are the main evidence source for identifying errors and their causes.
Requirements: Requires AWS CloudWatch Logs access with credentials permitting logs:DescribeLogGroups, logs:DescribeLogStreams, logs:StartQuery, and logs:GetQueryResults. Instructions only; no scripts are included.

Application Failure Troubleshooting

Overview

Domain expertise for diagnosing application failures through CloudWatch log analysis. Discovers relevant log groups, searches for error patterns and stack traces, performs root cause analysis, and generates prioritized remediation recommendations.

Troubleshoot a failing application

To diagnose and resolve application failures using CloudWatch logs, follow the procedure exactly. See Application failure troubleshooting procedure [blocked].