Discover the power of thread dumps in Android development. Learn what thread dumps are, how to capture them using commands like 'dumpsys thread' and 'jstack,' and uncover the insights they offer. Explore the effectiveness of 'fastThread,' a user-friendly tool that simplifies thread dump analysis, helping you identify performance issues, deadlocks, and more for a smoother... Continue Reading →
Everyone knows about what sorting is. There are so many computer algorithms that have emerged to support sorting. Some of the well-known algorithms are quick sort, heap sort, merge sort etc. All these sorting algorithms are working based on sequential sorting. Means, a single thread is used to perform the complete sorting operation. However, this... Continue Reading →
Laurentio Spilca who is a skilled Java and Spring developer and an experienced technology instructor has written a book called Troubleshooting Java: Read, debug, and optimize JVM applications. The book teaches code investigation techniques that will help efficiently understand how Java apps work, how to optimize them, and how to fix the bugs that break... Continue Reading →
ConcurrentHashMap is used extensively in multi-threaded applications. The examples of multi-threaded applications are online gaming applications, chat applications, it adds the benefit of concurrency to the application. To make application more concurrent in nature, ConcurrentHashMap introduces a concept called ‘Parallelism’. In this article we will learn more about parallelism in ConcurrentHashMap. What is Parallelism? Basically,... Continue Reading →
Java virtual threads is a new feature introduced in JDK 19. It has potential to improve an applications availability, throughput and code quality on top of reducing memory consumption. This post intends to introduce java virtual threads in an easily understandable manner. Video: To see the visual walk-through of this post, click below: https://youtu.be/1RHgvf8GKe4 Thread Life... Continue Reading →
Due to the heat of the moment, most SRE engineers restart the application without capturing the right data to debug the problem. Without the right data, debugging the production problem can be hard. yCrash data script captures below mentioned 360-degree data that too at the right moment. These artifacts will be highly useful to troubleshoot... Continue Reading →
The industry has seen cutting-edge Application Performance Monitoring tools and infrastructure monitoring tools. These monitoring tools are great at answering the question: 'What is the problem?'' but not, Why does the problem happen? yCrash attempts to answer this question. It captures 360-degree artifacts from your technology stack such as Garbage collection logs, thread dumps, heap dumps,... Continue Reading →
We had an outage in our online application GCeasy on Monday morning (PST) Oct' 11, 2021. When customers uploaded their Garbage Collection logs for analysis, the application was returning HTTP 504 error. HTTP 504 status code indicates that transactions are timing out. In this post, we would like to document our journey to identify the... Continue Reading →
