In this series of simulating and troubleshooting performance problems in Kotlin, let’s discuss how to simulate thread leaks. ‘java.lang.OutOfMemoryError: unable to create new native thread’ will be thrown, when more threads are created than the memory capacity of the device. This error will disrupt the application’s availability. Video: To see the visual walk-through of this post,... Continue Reading →
In this series of simulating and troubleshooting performance problems in Kotlin, let’s discuss how to make threads go into BLOCKED state. A thread will enter into a BLOCKED state when it couldn’t acquire a lock on an object because another thread already holds the lock on the same object and doesn’t release it. Video: To... Continue Reading →
Surrounding ourselves with people who care is a wonderful experience. Everyday we learn something new about the people in our lives and they never cease to amaze us. Where do we meet these people? Are they just our family? If yes, how did they become one? Is it because we are related? The answer is... 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 →
Every year in October, JAX London is the go-to event for Java and Software Architecture enthusiasts! It is a four-day conference for cutting-edge software engineers and enterprise-level professionals. This year, at JAX London’s 2022 conference, our architect Ram Lakshmanan was invited to talk on the topic: “You might be wasting millions of dollars in garbage... Continue Reading →
Every year in October, JAX London is the go-to event for Java and Software Architecture enthusiasts! It is a four-day conference for cutting-edge software engineers and enterprise-level professionals. In this 2022 year's Jax London conference, our architect Ram Lakshmanan was invited to talk on the topic: "Let's crash your applications". In this talk, Ram discussed... Continue Reading →
J4K 2022 is a conference for Java Developers on Kubernetes, held on September 28th. It is an industry leading conference that combines the best of open source and middleware communities for developing applications on Kubernetes. Our Architect Ram Lakshmanan was invited to give a talk on the topic: 16 artifacts to capture when there is... Continue Reading →
In this series of simulating and troubleshooting performance problems in Kotlin articles, let’s discuss how to simulate CPU consumption to spike up to 100% on a host (or container). CPU consumption will spike up whenever a thread goes on an infinite loop. Kotlin CPU Spike Program Here is a sample kotlin program, which generates the... Continue Reading →
Recently we encountered a production in an application. This application was connecting to multiple systems of records (SOR). Oracle RAC cluster is one of the primary systems of record. This Oracle RAC cluster was slowing down due to resource constraints. This slowdown in the Oracle RAC cluster degraded the entire application's response time. In this... Continue Reading →
Apache PDFBox is a popular open-source library that facilitates java applications to work with PDF documents. Recently we encountered a Deadlock that surfaced in this library. In this post we have shared how we troubleshooted and identified the root cause of the problem. What is Deadlock? First let's try to understand what 'Deadlock' means. Several... Continue Reading →
English
Arabic
Chinese (Simplified)
Dutch
French
German
Hindi
Italian
Portuguese
Russian
Spanish
Tamil