Thread dumps are vital artifacts to troubleshoot/debug production problems. In the past we have discussed several effective thread dump troubleshooting patterns like: traffic jam, treadmill, RSI, all roads lead to rome ………. In this article we would like to introduce... Continue Reading →
Threads that are throwing Exception or Errors should be investigated. Because those threads stack trace indicates the origin of the problem. Below is the stack trace of the thread that is throwing java.lang.OutOfMemoryError: Thread 0x3ff781e764e0 at java.lang.OutOfMemoryError.<init>()V (OutOfMemoryError.java:48) at java.lang.ClassLoader.defineClass1(Ljava/lang/String;[BIILjava/security/ProtectionDomain;Ljava/lang/String;)Ljava/lang/Class;... Continue Reading →
Coming soon...
In fastThread application, there is a 'Thread Group' section. In this section, fastThread app groups the threads with its internal algorithms. This generic grouping of threads may not suit well for few applications. Thus, we have developed this feature, which... Continue Reading →
When there are several hundreds or thousands of threads in the thread dump, the user might want to search threads based on thread name, thread Id, stack trace … Here are a few sample cases: Find all the threads which... Continue Reading →
we troubleshooted a CPU spike problem that surfaced in a major trading application in North America. All of a sudden, this application’s CPU started to spike up to 100%
Covid19 pandemic has already put a deep economic dent globally. US stock market has experienced the worst crash since 1987. Sooner or later, Enterprises have to figure out a plan to run their organizations on tight budgets. In this below 10... Continue Reading →
I told my manager that I like the title of this article. He said to me that’s not surprising, because I am still an eligible bachelor. No wonder I like the word “marrying” in the title. But for folks like... Continue Reading →
At the time (March 2020) of writing this article there are 600+ arguments that you can pass to JVM just around Garbage collection and memory. If you include other aspects, total JVM arguments count will easily cross 1000+. 😊. It's... Continue Reading →