How to check the number of concurrent connections in tomcat

How to check the number of concurrent Tomcat connections: Visit the Tomcat Manager page (http://localhost:8080/manager/html) and enter your user name and password. Click Status->Sessions in the left navigation bar to see the number of concurrent connections at the top of the page.

The Tomcat website root directory is located in Tomcat's webapps subdirectory and is used to store web application files, static resources, and the WEB-INF directory; it can be found by looking for the docBase attribute in the Tomcat configuration file.

Tomcat installation directory: Default path: Windows: C:\Program Files\Apache Software Foundation\Tomcat 9.0macOS:/Library/Tomcat/Tomcat 9.0Linux:/opt/tomcat/tomcat9 Custom path: You can specify it during installation. Find the installation directory: use whereis or locate command.

To configure Tomcat to use a domain name, follow these steps: Create a server.xml backup. Open server.xml and add the Host element, replacing example.com with your domain name. Create an SSL certificate for the domain name (if required). Add an SSL connector in server.xml, change the port, keystore file, and password. Save server.xml. Restart Tomcat.

To deploy multiple projects through Tomcat, you need to create a webapp directory for each project and then: Automatic deployment: Place the webapp directory in Tomcat's webapps directory. Manual deployment: Manually deploy the project in Tomcat's manager application. Once the project is deployed, it can be accessed by its deployment name, for example: http://localhost:8080/project1.

The Tomcat port number can be viewed by checking the port attribute of the <Connector> element in the server.xml file. Visit the Tomcat management interface (http://localhost:8080/manager/html) and view the "Status" tab. Run "catalina.sh version" from the command line and look at the "Port:" line.

Running projects with different port numbers on the Tomcat server requires the following steps: Modify the server.xml file and add a Connector element to define the port number. Add a Context element to define the application associated with the port number. Create a WAR file and deploy it to the corresponding directory (webapps or webapps/ROOT). Restart Tomcat to apply changes.

Common reasons for Tomcat startup flashing include: 1. Port conflict; 2. Insufficient system resources; 3. Configuration file errors; 4. Java environment issues; 5. Security restrictions; 6. Process conflicts; 7. Other reasons, see Tomcat Log for more clues.