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 root cause of the problem.
Continue reading “AWS Cloud watch vs yCrash – Monitoring vs RCA”Performance impact of java.lang.System.getProperty()
‘java.lang.System.getProperty()’ is a common API used by Java developers to read the System properties that are configured during application startup time. i.e. when you pass “-DappName=buggyApp” as your application’s startup JVM argument, the value of the ‘appName’ system property can be read by invoking the ‘java.lang.System.getProperty()’. Example:
Continue reading “Performance impact of java.lang.System.getProperty()”Overhead added by Garbage Collection Logging
Enabling Garbage collection logs on your application has certain advantages. In nutshell, Garbage collection logs will facilitate you to optimize Garbage Collection pause time, improve overall application’s response time, forecast production outages, reduce computing cost. Even though Garbage collection logs have these advantages, we weren’t sure what overhead does garbage collection logging add to the application. Thus we set out to conduct the below case study.
Continue reading “Overhead added by Garbage Collection Logging”Overhead added by collecting thread dumps
A thread dump is a snapshot of all the threads running in a java process. It’s a vital artifact to troubleshoot various production problems such as CPU spikes, unresponsiveness in the application, poor response time, hung threads, high memory consumption. Thus to facilitate troubleshooting, we have seen enterprises capture thread dumps on a periodic basis (every 5 minute or 2 minute).So we were curious to learn the overhead of capturing thread dump on a periodic basis. Thus we set out to conduct the below case study.
Continue reading “Overhead added by collecting thread dumps”OutOfMemoryError: Kill process or sacrifice child – causes & solutions
There are different flavors of OutOfMemoryError. One of the flavours of OutOfMemoryError is ‘Kill Process or sacrifice child’. This post discusses what triggers this ‘Kill Process or sacrifice child’ OutOfMemoryError and potential solutions to diagnose this problem.
Continue reading “OutOfMemoryError: Kill process or sacrifice child – causes & solutions”Major Outages in Major Enterprises
JAX – Online conference is the meeting place for all Java and software architecture enthusiasts! This year also, they have conducted an online conference to exchange knowledge and ideas from speakers all over the world.
Continue reading “Major Outages in Major Enterprises”JVM Internals in 1 slide
JAX – Online conference is the meeting place for all the Java and software architecture enthusiasts! This year also, they have conducted the online conference to exchange the knowledge and ideas from the speakers all over the world.
Continue reading “JVM Internals in 1 slide”Accelerating Incident Response To Production Outages – Webinar
Lexington soft training academy conducted a webinar on the topic “Accelerating Incident Response To Production Outages of Enterprise JVM Applications“
Continue reading “Accelerating Incident Response To Production Outages – Webinar”Video Blog: 7 JVM Arguments of Highly effective applications
You can pass 600+ arguments to JVM just around Garbage collection and memory. It’s way too many arguments for anyone to digest and comprehend. In all these 4 videos, 7 important JVM arguments that will boost your Java/Scala/Jython application performances are shared.
Continue reading “Video Blog: 7 JVM Arguments of Highly effective applications”Quickly find your Java application process Id
In this post, we are going to discuss how to find your Java application process Id quickly. For certain monitoring tools like yCrash, you need to pass your application process Id as input. If you want to look for a more detailed post with several different options to find your application’s process Id, you can refer to this blog post.
Continue reading “Quickly find your Java application process Id”
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