Go to 'Arguments'. Go to that something. Your logs are there. Tip: Make sure that the server is not running when you are trying to add the argument. You should have log4j or similar logging framework in place. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Where can I view Tomcat log files in Eclipse? Ask Question. Asked 11 years, 9 months ago.
Active 3 years, 11 months ago. Viewed k times. BTW, does Tomcat dump to the log file after a while or is it immediate? Improve this question. Blankman Blankman k gold badges silver badges bronze badges. Are you looking for the access logs? Also see: stackoverflow. Add a comment. Active Oldest Votes. I'm not sure if you were after catalina. But, if you're after the catalina. You will get a screen called Overview. Click on "Open launch configuration". Click on the "Common" tab.
When running as a service on Windows, the console output is also caught and redirected, but the file names are different. The default logging configuration in Apache Tomcat writes the same messages to the console and to a log file. This is great when using Tomcat for development, but usually is not needed in production. Old applications that still use System.
If the attribute is set to true , the calls to System. Note , that the swallowOutput feature is actually a trick, and it has its limitations. It works only with direct calls to System. It may not work in other threads that might be created by the application. It cannot be used to intercept logging frameworks that themselves write to the system streams, as those start early and may obtain a direct reference to the streams before the redirection takes place.
Access logging is a related but different feature, which is implemented as a Valve. It uses self-contained logic to write its log files. The essential requirement for access logging is to handle a large continuous stream of data with low overhead, so it only uses Apache Commons Logging for its own debug messages.
This implementation approach avoids additional overhead and potentially complex configuration. Please refer to the Valves documentation for more details on its configuration, including the various report formats.
The default implementation of java. The key limitation is the inability to have per-web application logging, as the configuration is per-VM. As a result, Tomcat will, in the default configuration, replace the default LogManager implementation with a container friendly implementation called JULI, which addresses these shortcomings.
The main difference is that per-classloader properties files can be set which enables easy redeployment friendly webapp configuration , and the properties files support extended constructs which allows more freedom for defining handlers and assigning them to loggers. JULI is enabled by default, and supports per classloader configuration, in addition to the regular global java.
This means that logging can be configured at the following layers:. The default logging. You can also target specific packages to collect logging from and specify a level.
When enabling debug logging it is recommended that it is enabled for the narrowest possible scope as debug logging can generate large amounts of information. The configuration used by JULI is the same as the one supported by plain java. The main differences are:. There are several additional implementation classes, that can be used together with the ones provided by Java.
The notable ones are org. FileHandler and org. FileHandler supports buffering of the logs. The buffering is not enabled by default. To configure it, use the bufferSize property of a handler. Viewed 8k times.
Thanx Tom. Improve this question. Add a comment. Active Oldest Votes. FileHandler, java. ConsoleHandler Handler specific properties. Describes specific configuration info for Handlers. OneLineFormatter and you can define the name prefix for each individual webapp log with org. Improve this answer. DailyRollingFileAppender log4j. Romeo Ninov Romeo Ninov 2, 1 1 gold badge 9 9 silver badges 14 14 bronze badges. I'm not using log4j but instead basic raw System.
Does your proposed config work also for this in order to divide the output into several files?
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