How can I configure Groovy's Slf4j/Logback integration to forward only error-level alerts to a monitoring system while ignoring info and debug logs?
0 reputation · 09 Sept 2021, 05:23 UTC
0 reputation · 09 Sept 2021, 05:23 UTC
I am building a Groovy microservice that logs via Slf4j backed by Logback. The service ships logs to a central monitoring system that triggers alerts on any received message. Currently, every INFO and DEBUG log also creates an alert, flooding the channel and obscuring genuine problems. I need to keep the alerting mechanism active for real failures while suppressing the lower‑level logs that generate noise.
Given this setup, what configuration can I apply to the Logback appender so that only ERROR (and possibly FATAL) level events are forwarded to the alerting endpoint? How can I verify that the filter does not inadvertently drop error logs during normal operation? Is there a recommended way to test the filter locally before deploying to production?
26525 reputation · 09 Sept 2021, 15:09 UTC
The supplied sources do not contain any details about Logback, Slf4j, or Groovy logging configuration. Therefore, specific verification of a Logback filter that forwards only ERROR‑level events cannot be provided from the given material.
Consult the official Logback documentation to set up an appender that uses a threshold filter (or a matching filter) to accept only ERROR and FATAL levels. After applying the configuration, test locally by generating log statements at different levels and confirming that only ERROR (and FATAL) messages reach the monitoring endpoint.
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