Field guides
Handbooks for production debugging. Not a course — notes you can open when a process hangs, a JVM stalls, or a dump needs a first pass.
Handbook
strace
Linux system call tracing for hangs, CPU spikes, container failures, and network issues.
Open handbook →Handbook
Java Flight Recorder
JVM observability — CPU hotspots, memory leaks, GC pauses, lock contention.
Open handbook →Handbook
Heap dump analysis
Find memory leaks and OOM root causes from production heap dumps.
Open handbook →Handbook
Thread dump analysis
Deadlocks, lock contention, pool starvation, and hung JVM workflows.
Open handbook →