Additional Notes
What does it usually mean if many threads are stuck at `HikariPool.getConnection()`?
Track: Java
Topic: Performance Tuning
Focus: Thread Dumps
Java: Thread Dumps
Answer
The service is likely waiting on database pool capacity or a slow database.
This kind of stack trace points toward external resource contention, not necessarily a heap problem. Thread dumps help you see that requests are blocked on the database boundary rather than actively computing.
This kind of stack trace points toward external resource contention, not necessarily a heap problem. Thread dumps help you see that requests are blocked on the database boundary rather than actively computing.
Topics: Java Performance Tuning Thread Dumps