Glassfish

Website

glassfish.dev.java.net

$ Details

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Categories

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

Apache Tomcat

Website

tomcat.apache.org

$ Details

Categories

#Web And Application Servers #Application Server #Java #Open Source

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 Tomcat features and specs

• Open Source
  Apache Tomcat is an open-source software, which means it is freely available for use and modifications. This can significantly reduce the cost of ownership and allows for customization.
• Community Support
  Being a widely-used open-source server, Tomcat has a large and active community of developers and users who contribute to its documentation, plugins, and forums, providing extensive support.
• Lightweight
  Tomcat is designed to be a lightweight servlet container, making it faster and less resource-intensive compared to full-blown Java EE application servers.
• Integration with Popular Frameworks
  Tomcat integrates well with popular Java frameworks such as Spring and Hibernate, making it easier for developers to deploy and manage web applications.
• Easy to Set Up and Configure
  Tomcat is relatively easy to set up and configure, making it suitable for both development and production environments.
• Frequent Updates
  Regular updates and patches are released to improve performance, security, and compatibility, ensuring the server is up-to-date with the latest web technologies.

Possible disadvantages of Apache Tomcat

• Limited Functionality
  While Tomcat is a powerful servlet container, it lacks some of the advanced features found in full-fledged Java EE application servers, which might be necessary for complex enterprise applications.
• Resource Management
  Tomcat's default configuration might not be suitable for high traffic web applications, requiring significant tweaking and tuning to handle heavy loads effectively.
• Documentation Quality
  The documentation, while extensive, can sometimes be hard to navigate and understand, especially for beginners. This can slow down the learning curve.
• Limited Built-in Tools
  Compared to other full-stack application servers, Tomcat comes with limited built-in tooling for monitoring, load balancing, and clustering, often requiring third-party solutions.
• Security Concerns
  As with any open-source project, security vulnerabilities may emerge. It requires constant monitoring and timely updates to ensure security.
• Lack of EJB Support
  Tomcat does not support Enterprise JavaBeans (EJB), limiting its use in scenarios where EJB is a crucial component of the architecture.

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Introducing Apache Tomcat 8.5

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