Line-Based Filtering for Log Analysis
Plain log files can overwhelm teams during incidents. Thousands of lines with mixed informational and error events make manual review slow. Line filtering gives you a fast first pass before opening heavier observability tools.
Start with contains filters for high-signal terms such as ERROR, timeout, or failed. Then apply not-contains rules to remove known noise, including heartbeat checks or static asset requests.
Regex filtering helps identify structured patterns like status codes or specific route paths. This is useful when incidents are tied to one endpoint but logs include many unrelated entries.
Text-level filtering does not replace full monitoring systems, but it improves triage speed and gives teams a clear starting point under pressure.