GlassFish in Production Environments

Copyright © 2012, Oracle and/or its affiliates. All rights reserved.1
GlassFish in Production
Environments
Bruno Borges
Principal Product Manager
Java Evangelist

The following is intended to outline our general product direction. It is intended
for information purposes only, and may not be incorporated into any contract.
It is not a commitment to deliver any material, code, or functionality, and should
not be relied upon in making purchasing decisions. The
development, release, and timing of any features or functionality described for
Oracle’s products remains at the sole discretion of Oracle.

Open
Source
Project
Commercial
Product
GlassFish Server
Reference
Implementation
Glass
Fish

GlassFish Server
Reference Implementation

Java EE – And GlassFish - Journey
Java EE 7
2005-2012
Ease of
Development
Lightweight
Developer Productivity & HTML5
1998-2004
Enterprise
Java Platform
Robustness
Web
Services
2013 - Future

Java EE 7 ThemesJava EE 7 Themes
DEVELOPER
PRODUCTIVITY
MEETING
ENTERPRISE
DEMANDS
Java EE 7
 Batch
 Concurrency
 Simplified JMS
 More annotated POJOs
 Less boilerplate code
 Cohesive integrated
platform
 WebSockets
 JSON
 Servlet 3.1 NIO
 REST

Java EE 7 Community Momentum
ACTIVEPROJECTS
26
Active and
transparent
mailing lists
JSRsADOPTED
22
JUGs
19
Adopt a JSR
PROMOTEDBUILDS
89
GlassFish
YOU
187
COMPANIES
32
EXPERTS
SPECLEADS
16
ACTIVEJSRs
14

GlassFish Server
Open Source Project

GlassFish Server
 Built in open source
 World’s first Java EE 7 Application
Server
 Lightweight / modular / easy to use
 Production ready
Open Source Project

The GlassFish Community
 10+ million annual downloads
 FishCAT - Early testing and fixes
 Active user forums
 Community contributions

Centralized management
 Integrated GlassFish Server Provisioning
 Manage instance/cluster lifecycle
 Manage configurations
 Manage Java EE resources
 Manage application lifecycle

Flexible Administration
Web Browser
REST API
Command Line

GlassFish Server Administration Architecture
Cluster 1
Domain
Administration
Server
(DAS)
instance4
ssh /
dcom /
http
http
Repository
instance2
instance3
instance1
REST
JSON
XML

GlassFish Server Clustering
 Manage 100 instances per domain
– Standalone
– Clusters (max 10 per cluster)
 Dynamically resize cluster
 JMS Broker Clustering
 Load Balancing
– Commercial plugin
– AJP (mod_jk, mod_proxy)

Application Versioning
 Deploy multiple versions application versions
 Activate any version
 For example:
– Roll forward and backwards between versions
– Pre-deploy application for later activation
– Enable new version at specific time of day

GlassFish Modularity
 Starts in seconds
 Only loads required
modules
 Including
“infrastructure”
features
In a nutshell
OSGi
EJB Servlet
274
JPA
…
JMS Broker
app1.war
CDI
CDI REST WebSocket Bean Validation
Clustering Console HTTP
app2.ear

OSGi Support
 OSGi Runtime (Apache Felix)
– Also runs on others
– Ships with ~275 modules
– Integrates OSGi management tools
 Hybrid Java EE / OSGi Applications
– Expose EJBs as OSGi Services
– Inject OSGi services into Java EE applications
 Run any OSGi bundle
 Supports OSGi Enterprise

Extending GlassFish Server
 Define a new container
– System-level logic
– Implement administration commands
 Expose administration capabilities
– Administration Console
– Command Line
– RESTful Interface
 Embeddable API
 Re-brand user interface

Built-in Developer Features
 Ultra-fast deployment
– Hot deployment
– Directory deployment
– Auto-deploy directory
 Run as a single JAR
java –jar glassfish.jar app1.war
 Maven Plugin
mvn gf:run, gf:start, gf:deploy

Active Redeploy
 Maintains state across redeploys
 Rapid Iterative development
– Edit
– Save
– Refresh
1) Edit
2) Save
3) Refresh

NetBeans 7.3.1 + GlassFish 4.0
 NetBeans bundles GlassFish
 Incremental compilation; auto-deploy
 Complete Java EE 7 support
– All Java EE 7 project types
– Maven Support
– Wizards
– Advanced Wizards
 Entity to REST generation
 Database to JSF 2.2

Oracle GlassFish Server
Commercial Product

Oracle GlassFish Server
 Commercial Distribution of
GlassFish Server Open Source Edition
 GlassFish Server Control
 Java SE support
 24 x 7 x 365 premium support
 Regular patch releases
 Indemnification
Java EE 6 Compliant

Oracle Enterprise Manager 12c
 Features
– Discovery
 Applications not discovered
– OOTB Monitoring (live, historical)
– Event Monitoring
– Configuration management
– Process controle (live, schduled)
 EM FMW Plugin 12.1.0.4
 GlassFish Open Source and Commercial versions
GlassFish Plugin

GlassFish Server Control
Performance TunerDAS Backup & Recovery
Monitoring
Scripting Client
ActiveCache for GlassFish
Oracle Access
Manager Integration
Load Balancer
Plugin & Installer

TUNING FOR
PRODUCTION
ENVIRONMENTS

Quick Start and Overview
 Download from glassfish.org
– ZIP and native installers (Mac, Linux, Windows)
– Download Size
 Smallest at 37Mb for English Web Profile
 Biggest at 114Mb for Multilingual Full Profile
 Install (requires JDK 7)
– Execute native installer or uncompress ZIP file
 Run
– $ cd glassfish4
– $ ./bin/asadmin start-domain
Download, Install, Run

Default configurations
 GlassFish comes by default best configured for development
environments
– Default security configurations OTOH come pre-configured
– A default GF domain does not enables remote access for admin
 Best for hot deployment
 Great for integrating and using from within IDEs
Development purpose

Basic stuff: JVM options
 A production domain will need more memory, and other fine tuned
options
– Edit <java-config> inside domain.xml manually, or
– Edit through Admin CLI or Web UI
 JVM Options
-Xms and -Xmx to same value (at least 2GB)
-XX:MaxPermSize and -XX:MinPermSize to same value (at least 256mb)
More memory for production environments

Garbage Collector and Heaps
 There are several options, but G1 is available for a while and you
should consider it. Analyse, compare, and decide
 Enable -verboce:gc
 Enable -XX:+PrintGCDetails
 Inform -Xloggc:/tmp/my_glassfish_vm_gc.log
 Make sure devs can’t freeze your VM by enabling
– XX:+DisableExplicitGC
 Enable heap dump for when you get OOME
Analyse and consider G1 from HotSpot 7

Disabling Developer Features
 Disable auto-deploy and dynamic application reload
 Disable JSP check for modified date
 Enable cache of characters in Strings
– Edit domain1/config/default-web.xml
– genStrAsCharArray=true
– ** this might bring encoding issues
Because this is a production environment

Request and Acceptor Threads
 Define Acceptor Threads to a number similar to the number of Cores in
your CPU
 Increase the number of threads for the HTTP Listener, to as much as
your CPU can handle simultaneously
 Set min and max threads pool size to same value
Handling more than <several> users at the same time

LOGGING
 Always disable:
Unnecessary logging

Monitor, tune, monitor, tune
 Always monitor
 Keep tuning
 Tools
– jmap / jps, jstat, jconsole

CUSTOMER
STORIES

Customers using GlassFish in Production
 Jelastic was the first cloud to provide GlassFish 4.0 with Java EE 7
 Pense Imóveis, real estate buyer/seller network
 Guia da Semana, enterteinment/schedule website
 Parleys.com
 CloudBees first to ofer Java EE 7 (Using GlassFish)
Besides Jelastic

ROADMAP

GlassFish Server 4.x
2013 2014
GlassFish Server 4.0
• Java EE 7
• Open Source Edition
• Clustering (early access)
GlassFish Server 4.0.1
• Bug Fixes
GlassFish Server 4.1
• Clustering
• Improve modularization
• GlassFish Server Control
• Oracle GlassFish Server
• Bug fixes
Major
Minor

Future of Java EE
JCACHE
State
Management
Configuration
HTML5 ++Cloud / PaaS
JSON
Binding
Java EE 8
and Beyond
NoSQL

GlassFish in Production Environments

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