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june 23rd

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docs/java-and-java-performance-optimization.md
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# Java and Memory Management
- [Java Performance Optimization](#java-performance-optimization)
- [Java on Kubernetes](#java-on-kubernetes)
- [Java on Kubernetes. Java Memory Arguments for Containers](#java-on-kubernetes-java-memory-arguments-for-containers)
- [Benchmarking modern Java Virtual Machines and the next-generation garbage collectors](#benchmarking-modern-java-virtual-machines-and-the-next-generation-garbage-collectors)
- [Relevant JVM Metrics](#relevant-jvm-metrics)
- [Common JVM Errors](#common-jvm-errors)
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- [developers.redhat.com: Get started with JDK Flight Recorder in OpenJDK 8u 🌟](https://developers.redhat.com/blog/2020/08/25/get-started-with-jdk-flight-recorder-in-openjdk-8u/) Deploy JDK Flight Recorder with JDK Mission Control, a new monitoring and profiling tool that exposes a high level of information without adding a tax on the runtime system
- [blog.heaphero.io: HeapHero - Java & Android Heap Dump Analyzer](https://blog.heaphero.io/)
- [blog.heaphero.io: What is GC Log, thread dump and Heapdump? 🌟](https://blog.heaphero.io/2020/10/16/what-is-gc-log-thread-dump-and-heapdump/) Java Virtual Machine (JVM) generates 3 critical #artifacts that are useful for optimizing the performance and troubleshooting production problems. Those artifacts & their differences are explained in this PDF.
### Java on Kubernetes
- [developers.redhat.com: Shenandoah garbage collection in OpenJDK 16: Concurrent reference processing](https://developers.redhat.com/articles/2021/05/20/shenandoah-garbage-collection-openjdk-16-concurrent-reference-processing)
### Java on Kubernetes. Java Memory Arguments for Containers
- [medium: How to reduce your JVM app memory footprint in Docker and Kubernetes 🌟](https://medium.com/wix-engineering/how-to-reduce-your-jvm-app-memory-footprint-in-docker-and-kubernetes-d6e030d21298)
- [tech.olx.com: Improving JVM Warm-up on Kubernetes 🌟](https://tech.olx.com/improving-jvm-warm-up-on-kubernetes-1b27dd8ecd58) Vikas Kumar explains why you should not run your Java applications with a fixed quota of a single CPU core. Instead, use Burstable QoS to allow for increased CPU usage during start-up.
- [dzone: Best Practices: Java Memory Arguments for Containers 🌟](https://dzone.com/articles/best-practices-java-memory-arguments-for-container) In this article, we will discuss the possible JVM arguments that can be used to specify the Java heap size and the best option to choose.
### Benchmarking modern Java Virtual Machines and the next-generation garbage collectors
* [jet-start.sh: Performance of Modern Java on Data-Heavy Workloads, Part 1 🌟](https://jet-start.sh/blog/2020/06/09/jdk-gc-benchmarks-part1) The Java runtime has been evolving more rapidly in recent years and, after 15 years, we finally got a **new default garbage collector: the G1**. Two more GCs are on their way to production and are available as experimental features: **Oracle's ZGC** and **OpenJDK's Shenandoah**. We at Hazelcast thought it was time to put all these new options to the test and find which choices work well with workloads typical for our distributed stream processing engine, [Hazelcast Jet](https://jet-start.sh/).