Technical guide
List local Git commits that have not reached the remote
Compare your branch with its upstream, inspect commits absent from fetched remote refs, and distinguish commit identity from patch equivalence.
Technical guide
List installed npm packages
Inspect local and global npm dependencies, expand the full tree when needed, and interpret missing, invalid, or extraneous packages.
Explainer
Find Docker daemon logs
Locate dockerd diagnostics on systemd, rootless, and Docker Desktop installations, and keep them separate from application container logs.
Explainer
Record slow operations and query profiles in MongoDB
Configure MongoDB slow-operation logging and database profiling, then inspect system.profile without confusing it with the diagnostic log.
Explainer
Log slow queries or all statements in MySQL
Enable MySQL slow-query logging, understand session thresholds, and use the general query log for bounded investigations.
Explainer
Log slow queries or all statements in PostgreSQL
Choose PostgreSQL statement logging and duration thresholds, reload the right settings, and add enough context to investigate slow queries.
Explainer
Inspect slow commands and live command traffic in Redis
Configure the Redis in-memory slow log in microseconds, inspect recent entries, and use MONITOR with clear limits on overhead and coverage.
Explainer
Log HTTP requests made with Python Requests
Use urllib3 diagnostics or Requests response hooks, understand which failures and payloads they omit, and avoid exposing credentials in HTTP logs.
Explainer
Record cron job output and completion status
Capture stdout and stderr, preserve exit codes, and keep application results distinct from cron scheduler events.
Explainer
Write structured JSON logs in Python
Choose a JSON logging package or a custom formatter, preserve exception details and event timestamps, and validate fields before sending logs to a collector.
Explainer
Write JSON logs in Laravel
Configure a Laravel daily log channel with Monolog JSON formatting, preserve exception traces explicitly, and validate one event per line before collection.
Explainer
Send browser JavaScript errors to Kibana
Capture browser errors and rejected promises, send them through a controlled collection endpoint, and analyze them in Kibana.