Concurrency in software development can enhance performance but also lead to deadlocks, which block threads from proceeding. This post discusses a real-world deadlock scenario caused by Java's "parallelStream" and how it was resolved using the troubleshooting tool yCrash. Switching from "parallelStream" to a regular stream eliminated the deadlock issue.
The thread dump is crucial for diagnosing Java application issues like CPU spikes and memory usage. A study using the Pet Clinic app on AWS EC2 assessed the impact of capturing thread dumps every 5 and 2 minutes. Results indicated no significant overhead on CPU, memory, or response times for either interval.