![]() ![]() Memory leaks occur when the garbage collector cannot free up working memory by removing objects that are no longer needed by the application. In this section, you can run a diagnostic check for memory leaks in your application. This page lists all applications, including Tomcat Manager itself, so you can quickly view processing times, active sessions, and the number of JSP servlets loaded for each application, calculated as a cumulative count from the start of the server. In order to view the status of all of your deployed applications, you can navigate to the manager/status/all page. You can also view the request count for each deployed application within Tomcat’s application list on the server status page. Thread stages can help you accurately gauge the number of threads that are ready to accept incoming requests. After the connection times out, the thread goes back to the Ready stage. The maximum duration of this stage is determined by the keepAliveTimeout value set in the server’s configuration file. Keep-Alive: The thread is keeping the connection open for the same client to send another request.Finishing: The thread has finished processing the request and is sending a generated response back to the client.Service: The thread is processing and generating a response for an incoming request.Parse and Prepare Request: The thread is parsing request headers or preparing to read the body of the request.Ready: The thread is available to process a request.Each thread progresses through a series of stages as it processes a request: ![]() This page includes information about the Tomcat server and its AJP and HTTP connectors, as well as memory usage for the JVM.Įach connector section displays information about thread usage (e.g., max threads, current thread count, and current number of busy threads) and request throughput and performance (e.g., processing time, error counts, and bytes received), as well as information about each active thread, including its current stage. If you need a high-level view of application and server metrics, you can navigate to the /manager/status page or click on the “Server Status” button from the home page. ![]()
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