Debugging, Website Performance Issues & Real-Time Statistics
summary
Real-time aggregation of Varnish logs identifies which component causes slow pages and irrelevant content rather than guessing. The pipeline uses Varnish Cache with an 80 MB ring buffer log reader feeding VCS that emits JSON time series (1 second latency, bucket sizes 10–30s). Møller Group ties VCS into DataDog to pinpoint an API causing database load, vg.no drives live article popularity widgets from VCS, and Varnish serves ~2.5 million sites.
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chapters (11)
- 0:00Start
- 0:53Web Performance
- 1:36Dev Tools of Chrome
- 2:37Rotary Printing Machine
- 3:08Varnish Cache
- 4:05How the Process Works
- 4:45Financial Configuration Language
- 5:43Logging
- 9:00Varnish Custom Statistics
- 9:53Examples
- 13:11A / B Testing
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