Grok Archives - keep

Processing logs with Elastic Stack #1 – parse and send various log entries to Elasticsearch

21st May 202018th June 2020 little_pineconeTools

Why should we learn how to process application logs with Elastic Stack? After all, the default logging mechanism in Spring Boot allows us to start working on our POC in no time. However, we must be aware that inadequate logging makes debugging and monitoring difficult in a production environment.

Parsing logs with Grok #2 How to parse exceptions alongside regular logs

16th May 202017th May 2020 little_pineconeTools

When dealing with an exception stack trace we have to not only construct a separate match for our grok filter but also make sure that all lines will be treated as one entry.

Parsing logs with Grok #1 What to do when part of one field got caught in a different pattern

14th May 202017th May 2020 little_pineconeTools

I want to show you some issues that I encountered while applying the Grok filter plugin on logs. Most of my problems resulted from overusing the GREEDYDATA pattern (.*). I tested my solutions with the Grok Debugger app where you can also find the list of available patterns.