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Tomcat has a total of five log types: application, server, console, etc. 1. Application log

The log is mainly for recording application events, and it is useful for application-level troubleshooting, such as slow application performance.

two。 Server log

The server log is the same as the console log, except that the server log is saved in a file and can be viewed at any time.

3. Console log

This log records the details of the startup and loader sequence of the tomcat, and the log file is called catalina.out. It is useful to troubleshoot server startup and application deployment errors. The configuration log is configured in catalina.sh.

4. Access log

This log is also very important and useful in analyzing the traffic, bandwidth requirements, and load of many applications. The log is configured in server.xml.

The log format can be defined by yourself:

5. Host manager

Activity logs performed using Tomcat Manager, such as different task execution, application status, application deployment, and tomcat lifecycle, are configured in logging.properties.

28 Jun, 2011 3:36:23 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: list: Listing contexts for virtual host' localhost'28 Jun, 2011 3:37:13 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: list: Listing contexts for virtual host' localhost'28 Jun, 2011 3:37:42 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: undeploy: Undeploying web application at'/ sample'28 Jun 2011 3:37:43 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: list: Listing contexts for virtual host' localhost'28 Jun, 2011 3:42:59 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: list: Listing contexts for virtual host' localhost'28 Jun, 2011 3:43:01 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: list: Listing contexts for virtual host' localhost'28 Jun, 2011 3:53:44 AM org.apache.catalina.core.ApplicationContext logINFO: HTMLManager: list: Listing contexts for virtual host' localhost'

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