WildFly-8.2.0.Final Windows Server 2012 R2. VMware for Operating System, then download the OVA file. Do not use this guide for installation instructions. WildFly 8 Administration Guide. The WildFly 8 Administration guide is out! This book covers all details on administration and management aspect of this new exciting version of the application server. Description JBoss Application server is the most popular open-source Java application server, renamed from this release and on as WildFly. This book covers all details on administration and management aspect of this new exciting version of the application server. Focusing exclusively on the management instruments of the application server, the book takes you through all of the latest architectural and performance changes. You'll progress from basic server configuration to more advanced techniques for clustering, JDBC connectivity, logging, and much more. What you will learn from this book: • How to install the application server on Windows and Unix/Linux systems including details for installing it as a service • Steps for packaging and deploying web applications • Configuring the services stack, including the new Undertow Web subsystem • Deploying Wildfly 8 with the Apache Web server and mod_cluster • Load balancing and clustering a farm of Wildfly 8 servers • Monitoring Wildfly 8 servers in real-time by tapping into internally maintained statistics • Secure applications and encrypt their communication. Table of Contents Chapter 1: Installation What is new in WildFly 8? AWS WildFly 10.1 Administrators Guide Download PDF. Introduction This guide depicts the configuration of Centos 7.2 and WildFly 10.1 installed on the AMI available through the Amazon Marketplace. All changes described were made to improve the security, performance and scalability of the provided environment. The following sections will describe in detail all the changes. Reference instructions associated with making changes to the default configuration will provided within each individual sub category. Operating System Defaults This distribution of WildFly 10.1 has been deployed on Centos 7.2 with a baseline package installation for an infrastructure server. The following sections outline the baseline operating system configurations included with this distribution. SSH Configuration To SSH into the instance, an SSH key is required for the specified user (ec2-user) and a respective AWS security group must be added to allow connections on port 22 from your current IP address. The SSH key will be prepopulated by AWS during instance creation. For more information on how to define an AWS security group for managing access, see the following: A password is not required for SSH access. For more information on how to make changes to these settings, see the following. Default JVM Tuning Performance tuning is unique to each installation because of internal and external factors. It is not a goal but a cyclical process of performance monitoring, configuration changes and review. All the following configurations are organized around best practices of heap sizing and management. Heap Size Heap sizes can be divided into setting an appropriate initial heap size (-Xms) and a maximum heap size (-Xmx). The following table provides examples of memory sizes based on instance types. Instance Type CPU Memory (GB) Heap Size (GB) t2.small 1 2 2 m3.medium 1 3.75 2 t2.medium 2 4 2 m3.large 2 7.5 4 t2.large 2 8 4 m3.xlarge + larger 4 15 8 Garbage Collector Algorithm A Concurrent Collector was used for garbage collection based on based practices and enhancing performance. Concurrent Collector (-XX:+UseConcMarkSweepGC) performs most of its work concurrently using a single garbage collector thread that runs with the application threads simultaneously. It enables the VM’s mostly concurrent garbage collector. It also auto-enables -XX:+UseParNewGC which enables a multi-threaded, young generation garbage collector. New Size When setting -XX:MaxNewSize you need to take into account that the young generation is only one part of the heap and that the larger we choose its size the smaller the old generation will be. For stability reasons, it is not allowed to choose a young generation size larger than the old generation, because in the worst case it may become necessary for a GC to move all objects from the young generation into the old generation. Thus -Xmx/2 is an upper bound for -XX:MaxNewSize. We regulate the new generation size by setting the MaxNewSize and NewSize equal.
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