Glassfish

Website

glassfish.dev.java.net

Categories

#Web And Application Servers #Application Server #Java #Web Servers

Apache Geronimo

Website

geronimo.apache.org

Categories

#Web And Application Servers #Application Server #Java #Web Servers

Glassfish features and specs

• Open Source
  GlassFish is open-source, allowing developers to access and modify its source code. This promotes collaboration and continuous improvement by the community.
• Enterprise Features
  It offers a range of enterprise-level features such as EJB, JPA, JMS, and web services, making it suitable for building complex applications.
• Java EE Reference Implementation
  GlassFish is the reference implementation of Jakarta EE (formerly Java EE), ensuring adherence to standards and compatibility with other Java EE technologies.
• Modular Architecture
  Using OSGi modules, GlassFish allows for a high degree of customization and the ability to deploy only necessary components, enhancing performance.
• Admin Console
  It features an intuitive and user-friendly administrative console, simplifying the management of server instances and deployed applications.

Possible disadvantages of Glassfish

• Performance Overhead
  Compared to other application servers, GlassFish might encounter performance issues under heavy load due to its extensive feature set.
• Complex Configuration
  Configuring GlassFish can be complex and time-consuming, especially for beginners, due to its numerous configurable options.
• Lower Adoption Rate
  It has a smaller user base compared to other application servers like Apache Tomcat or WildFly, potentially leading to less community support.
• Limited Commercial Support
  While there is commercial support available, it is limited compared to other leading application servers, which might deter enterprise users seeking robust support options.
• Resource Intensive
  GlassFish can be resource-intensive, requiring significant memory and processing power, which may not be ideal for smaller deployments.

Apache Geronimo features and specs

• Open Source
  Apache Geronimo is an open-source application server, which means it is free to use, modify, and distribute. This reduces cost barriers and encourages community collaboration and innovation.
• Java EE Compatibility
  Geronimo is designed to support Java Platform, Enterprise Edition (Java EE), which provides a standards-based platform for enterprise applications providing convenience in development and deployment.
• Modular Architecture
  It has a modular architecture, powered by the Apache GBean framework, that allows users to plug in only the components they need, which can lead to better performance and easier management.
• Extensive Community Support
  Being part of the Apache Software Foundation, Geronimo has a robust community and access to extensive documentation, mailing lists, and forums for support.
• Integration with Other Apache Projects
  It integrates well with other Apache projects such as Apache Tomcat, which can be used as its web container, providing versatility and richness in features.

Possible disadvantages of Apache Geronimo

• Complex Configuration
  Geronimo's flexibility can result in complex configurations that might overwhelm beginner users, especially when compared to more straightforward application servers.
• Performance Overhead
  While being versatile, the modular design can introduce performance overhead, especially if not properly tuned, which might not suit all high-performance applications.
• Limited Popularity
  Compared to other application servers like JBoss or GlassFish, Apache Geronimo is less popular, which might result in fewer third-party resources or slower community updates.
• Steep Learning Curve
  The complexity of a full Java EE server combined with its configuration options can result in a steep learning curve for developers who are new to enterprise Java application development.
• Uncertain Future
  With the rise of lightweight application frameworks and microservices architectures, the traditional Java EE servers like Geronimo may face an uncertain future as industry trends shift.