{"id":42164,"date":"2024-05-27T08:09:09","date_gmt":"2024-05-27T08:09:09","guid":{"rendered":"https:\/\/accuweb.cloud\/resource\/?post_type=faq&p=42164"},"modified":"2026-02-19T04:57:24","modified_gmt":"2026-02-19T04:57:24","slug":"tomcat-server","status":"publish","type":"faq","link":"https:\/\/accuweb.cloud\/resource\/articles\/tomcat-server","title":{"rendered":"Tomcat Server"},"content":{"rendered":"

Tomcat Server<\/h2>\n

Apache Tomcat, a leading platform for running Java<\/a> web applications, is like a high-performance server for computer programs. Because it’s so popular, we’ve created a guide to managing Tomcat that covers everything from setting it up (installation) to keeping it secure (security), with essential steps in between like configuration, balancing workloads (load balancing<\/a>), and deploying new applications (application deployment).<\/p>\n

This template is designed for use with a modern systemd<\/strong> initialization daemon.<\/p>\n

Create Tomcat Server<\/h2>\n

Setting up Tomcat on the Platform-as-a-Service (PaaS)<\/a> is straightforward:<\/p>\n

1. Log in to your AccuWeb.Cloud PaaS dashboard on your selected hosting service provider’s website and navigate to the “New Environment<\/strong>” section.<\/p>\n

2. Choose the Tomcat version that best suits your application server needs. Whether it’s Apache Tomcat 7 or the latest Tomcat 11, the cloud platform offers a range of options to accommodate your requirements. Simply select your preferred version from the dropdown menu:<\/p>\n

\"Tomcat<\/a><\/p>\n

Once the environment is set up, your Tomcat application server is installed and ready to use. To verify if Tomcat is running, simply click the “Open in Browser<\/strong>” button next to the application server.<\/p>\n

\"Open<\/a><\/p>\n

If you can see the welcome page of Tomcat in your browser, it indicates that the server has been installed correctly.<\/p>\n

\"Welcome<\/a><\/p>\n

The application server operates within its own container, which is essentially an isolated virtualized instance. Each Tomcat container is assigned its own private IP address and has a unique DNS record associated with it.<\/p>\n

\"IP<\/a><\/p>\n

Change Tomcat Version<\/h2>\n

If you ever need to update the version of your server, you can do so at any time without worrying about losing your data or configurations<\/strong>.<\/p>\n

Click the “Redeploy Containers<\/a>” button next to the Apache Tomcat server nodes.<\/p>\n

\"Redeploy<\/a><\/p>\n

Then, select the new versions for both Tomcat and JDK engines in the dialog that appears, and confirm the change.<\/p>\n

\"Select<\/a><\/p>\n

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Tomcat Clustering and Scaling<\/h2>\n

The platform offers truly flexible Tomcat hosting thanks to automatic scaling capabilities (both vertical and horizontal) and clustering.<\/p>\n

If you need to manually adjust your existing Tomcat server(s), simply click on “Change Environment Topology<\/strong>“.<\/p>\n

\"Change<\/a><\/p>\n

Automatic Vertical Scaling<\/h2>\n

The platform enables automatic vertical scaling<\/a> by dynamically adjusting allocated resources (RAM and CPU) for a server based on the current demands of the Tomcat server. This ensures efficient resource utilization, prevents overpaying for unused resources, and eliminates the need for manual adjustments.<\/p>\n

To set up automatic resource provisioning for your Tomcat server, access the environment topology wizard and specify the upper scaling limit in cloudlets (128 MiB and 400 MHz each).<\/p>\n

\"Automatic<\/a><\/p>\n

Your application will operate within these specified limits, with resource allocation adjusting accordingly based on the fluctuating load. This means resources will be reduced during low activity periods and increased during peak times, ensuring you only pay for the resources that are actually consumed. For further details, please consult the documentation on automatic vertical scaling.<\/p>\n

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Manual Horizontal Scaling<\/h2>\n

To adjust the number of Tomcat nodes, navigate to the dedicated Horizontal Scaling section in the topology wizard. You can use the +\/-<\/strong> buttons or manually input the desired number in the central part. Additionally, click on the gear<\/strong> icon next to the slider to access advanced management options.<\/p>\n

\"Horizontal<\/a><\/p>\n

Depending on your requirements, you can choose one of two scaling modes for the layer:<\/p>\n