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The "FAQ/Logging" page has been changed by KonstantinKolinko: http://wiki.apache.org/tomcat/FAQ/Logging?action=diff&rev1=21&rev2=22 Comment: Correct several typos, add link to Commons Daemon * Prior to Tomcat 5.5, Tomcat provided a Logger element that you could configure and extend according to your needs. * Starting with Tomcat 5.5, Logger was removed and [[http://commons.apache.org/logging/|Apache Commons-Logging]] {{{Log}}} is used everywhere in Tomcat. Read the Commons-Logging documentation if you'd like to know how to better use and configure Tomcat's internal logging. See also http://tomcat.apache.org/tomcat-5.5-doc/logging.html - * In Tomcat 7 (and also 6), the logging code is based on a set of classes interacting with the [[http://download.oracle.com/javase/6/docs/api/java/util/logging/package-summary.html|java.util.logging API]] (JUL), which comes with Java since version 1.4. The Tomcat startup script configures the JVM to uses a web-application-aware implementation of the [[http://download.oracle.com/javase/6/docs/api/java/util/logging/LogManager.html|JUL LogManager]]. This Tomcat logging infrastructure is called JULI, and one can still distinguish its Apache Commons Logging heritage, but the complex configuration has been edited out and the package name changed. + * In Tomcat 7 (and also 6), the logging code is based on a set of classes interacting with the [[http://download.oracle.com/javase/6/docs/api/java/util/logging/package-summary.html|java.util.logging API]] (JUL), which comes with Java since version 1.4. The Tomcat startup script configures the JVM to use a web-application-aware implementation of the [[http://download.oracle.com/javase/6/docs/api/java/util/logging/LogManager.html|JUL LogManager]]. This Tomcat logging infrastructure is called JULI, and one can still distinguish its Apache Commons Logging heritage, but the complex configuration has been edited out and the package name changed. {{http://public.m-plify.net/TomcatLogging.png}} @@ -90, +90 @@ If you really must rotate catalina.out, here are some techniques you can use: - 1. If you are using jsvc 1.0.4 or later to launch Tomcat, you can send SIGUSR1 to jsvc to get it to re-open its log files ([[https://issues.apache.org/jira/browse/DAEMON-95|Jira Ticket]]). You can couple this with 'logrotate' or your favorite log-rotation utility (including good-old 'mv') to re-name catalina.out at intervals and then get jsvc to re-open the original (catalina.out) file and continue writing to it. + 1. If you are using jsvc 1.0.4 or later (from [[http://commons.apache.org/daemon/|Apache Commons Daemon]] project) to launch Tomcat, you can send SIGUSR1 signal to jsvc to get it to re-open its log files ([[https://issues.apache.org/jira/browse/DAEMON-95|Jira Ticket]]). You can couple this with 'logrotate' or your favorite log-rotation utility (including good-old 'mv') to re-name catalina.out at intervals and then get jsvc to re-open the original (catalina.out) file and continue writing to it. 1. Use 'logrotate' with the 'copytruncate' option. This allows you to externally rotate catalina.out without changing anything within Tomcat. - 1. Modify bin/catalina.sh/.bat to pipe output from the JVM into a piped-logger such as [[http://www.cronolog.org/|chronolog]] or Apache httpd's [[http://httpd.apache.org/docs/2.2/logs.html#piped|rotatelogs]] (note that the previous reference is for Apache httpd documentation and *is not applicable to Tomcat* -- it merely illustrates the concept). + 1. Modify bin/catalina.sh (or bin/catalina.bat) to pipe output from the JVM into a piped-logger such as [[http://www.cronolog.org/|chronolog]] or Apache httpd's [[http://httpd.apache.org/docs/2.2/logs.html#piped|rotatelogs]] (note that the previous reference is for Apache httpd documentation and *is not applicable to Tomcat* -- it merely illustrates the concept). References to mailing list discussions: - * [[http://marc.info/?t=105544472600001&r=1&w=2a|tomcat-user thread from 2003]] + * [[http://marc.info/?t=105544472600001&r=1&w=2a|tomcat-users thread from 2003]] - * [[http://markmail.org/thread/2t6y5lf4dnx4nqpb|tomcat-user thread from 2009]] + * [[http://markmail.org/thread/2t6y5lf4dnx4nqpb|tomcat-users thread from 2009]] - * [[http://markmail.org/thread/oif7l27h4nqp3g4e|tomcat-user thread from 2011]] + * [[http://markmail.org/thread/oif7l27h4nqp3g4e|tomcat-users thread from 2011]] - * [[http://markmail.org/thread/3cjpvgjkpxrqrhlp|tomct-user thread from 2012]] + * [[http://markmail.org/thread/3cjpvgjkpxrqrhlp|tomcat-users thread from 2012]] <<Anchor(Q7)>>'''Where are the logs when running Tomcat as a Windows service?''' --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
