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#"Troubleshooting"]

All articles tagged with "Troubleshooting"]

#"Troubleshooting"]

Stop Flying Blind: A Battle-Hardened Guide to Linux Application Performance Monitoring

Is your application lagging? Stop blaming the code immediately. Learn how to diagnose the real bottlenecks using 2014's best profiling tools, interpret Nginx logs like a sysadmin, and why 'Steal Time' might be the reason you need to migrate your VPS to Norway today.

Beyond Nagios: Why "Green Status" is a Lie and How to Debug Real Latency

Nagios says your server is UP, but your customers are seeing 504 Gateway Timeouts. In the wake of Heartbleed, we explore deep system introspection using Graphite, Logstash, and strace to find the bottlenecks that simple monitoring misses.