March 2008 - logback-user - mailman3.qos.ch

logback.xml vs logback-test.xml
by Patel, Sanjay 22 Mar '08

22 Mar '08

I found conflicting information on the logback website. http://logback.qos.ch/faq.html states "If a file called logback.xml is found in the classpath, then it is used. In case it is not found, a logback-test.xml file is searched, and used if available. If none of these files are available, logback uses its BasicConfigurator class to create a simple default configuration that will only log to the console." http://logback.qos.ch/manual/joran.html states " 1. Logback tries to find a file called logback-test.xml in the classpath. 2. If no such file is found, it checks for the file logback.xml. 3. In case neither file is found, logback configures itself automatically using the BasicConfigurator which will cause logging output to be directed on the console" I think that FAQ (http://logback.qos.ch/faq.html) is correct. If it is true, while running tests using Maven (mvn test) it uses "src/main/resources" (home of logback.xml) and "src/test/resources" (home of logback-test.xml). logback-test.xml will never override logback.xml.

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file appender
by David Brocard 17 Mar '08

17 Mar '08

Hi I am new to Tomcat & logback I'm using tomcat 5.5.25 I try to use a file appender my conf is : <configuration> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>%d{HH:mm:ss} %X{host} %-5level %logger - %msg%n</ Pattern> </layout> </appender> <appender name="FILE" class="ch.qos.logback.core.FileAppender"> <File>testFile.log</File> <Append>true</Append> <Encoding>UTF-8</Encoding> <BufferedIO>false</BufferedIO> <ImmediateFlush>true</ImmediateFlush> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</ Pattern> </layout> </appender> <logger name="milan"> <level value="INFO" /> </logger> <root> <level value="debug" /> <appender-ref ref="STDOUT" /> <appender-ref ref="FILE" /> </root> </configuration> the statusprinter confirm that the configuration has been taken into account : |-INFO in ch.qos.logback.classic.BasicConfigurator@6f7a6e - Setting up default configuration. |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - Ignoring debug attribute. |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender] |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT] |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Popping appender named [STDOUT] from the object stack |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.FileAppender] |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [FILE] |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Popping appender named [FILE] from the object stack |-INFO in ch.qos.logback.classic.joran.action.LevelAction - milan level set to INFO |-INFO in ch.qos.logback.classic.joran.action.LevelAction - root level set to DEBUG |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[root] |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [FILE] to Logger[root] but no testFile.log is written moreover, I use the code : // logback String chemin = getServletContext().getRealPath("/"); ; String file = chemin + "logback.xml"; LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); try { JoranConfigurator configurator = new JoranConfigurator(); configurator.setContext(lc); lc.shutdownAndReset(); configurator.doConfigure(file); } catch (JoranException je) { StatusPrinter.print(lc); } finally { StatusPrinter.print(lc); } MDC.put("host", ""); logger = LoggerFactory.getLogger(this.getClass()); ch.qos.logback.classic.Logger log1 = lc.getLogger(this.getClass()); //logger.debug (log1.getName()); System.out.println (log1.getName()); ch.qos.logback.core.Appender app1 = log1.getAppender("STDOUT"); if (app1 !=null) { ch.qos.logback.core.Layout lay1 = app1.getLayout(); logger.debug(lay1.getContentType()); } I can retreive the name of my logger but I cannot retrieve the Appender object why ? thanks

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I cant use logback-access
by David Brocard 17 Mar '08

17 Mar '08

Hi I am new to Tomcat & logback I'm using tomcat 5.5.25 I can use logback-classic easiy but not logback-access I have followed the instructions at http://logback.qos.ch/access.html : 1) core and access jar in server/lib folder 2) <Valve className="ch.qos.logback.access.tomcat.LogbackValve"/> in th engine tag of the server.xml file 3) logback-access.xml in conf folder : - <configuration> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.access.PatternLayout"> <Pattern>%h %l %u %user %date "%r" %s %b</Pattern> </layout> </appender> <appender-ref ref="STDOUT" /> </configuration> but nothing works (no log at all, no error message...) thanks Le 6 mars 08 à 15:38, logback-user-request(a)qos.ch a écrit : > Mailing list subscription confirmation notice for mailing list > Logback-user > > We have received a request from 80.170.144.241 for subscription of > your email address, "david.brocard(a)gmail.com", to the > logback-user(a)qos.ch mailing list. To confirm that you want to be > added to this mailing list, simply reply to this message, keeping the > Subject: header intact. Or visit this web page: > > http://qos.ch/mailman/confirm/logback-user/e270f9d6ded40470850b7cefc3998997… > > > Or include the following line -- and only the following line -- in a > message to logback-user-request(a)qos.ch: > > confirm e270f9d6ded40470850b7cefc399899774d78eb6 > > Note that simply sending a `reply' to this message should work from > most mail readers, since that usually leaves the Subject: line in the > right form (additional "Re:" text in the Subject: is okay). > > If you do not wish to be subscribed to this list, please simply > disregard this message. If you think you are being maliciously > subscribed to the list, or have any other questions, send them to > logback-user-owner(a)qos.ch.

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using different appenders based on MDC value
by Stefan Armbruster 13 Mar '08

13 Mar '08

Hi, is there a way to redirect log messages depending on a MDC variable to different appenders? The logback manual only uses MDC values for the pattern inside a single appender. Example: assume, the code sets a MDC variable "context". If a log message is supplied with context="A", it should be written to application_A.log, if it has context="B", the message should be written to application_B.log, and so on. If this is not possible by default, it should be possible to write a kind of MDCAwareAppenderWrapper like this (only pseudo code below): public class MDCAwareAppenderWrapper<E> implements Appender<E> { Map<String,Appender> appenderMap; String mdcName; ... setters and getters omitted public void doAppend(E event) { LoggingEvent le = (LoggingEvent)event; String mdcValue = le.getMDCPropertyMap().get(mdcName); Appender appender = appenderMap.get(mdcValue); appender.doAppend(event); } } MDCAwareAppenderWrapper is configured by a Map<String,Appender> that maps MDC values (A and B from the example above) to the real appenders. Any hints or comments on that? Kind regards, Stefan

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logback dbadapter configuration for a red5 application
by jeffery durand 11 Mar '08

11 Mar '08

Hi, I'm trying to configure my red5 application to log everything to the database. I have followed the instructions as shown on the dbadapter configuration section in chapter 4. I've tried both a simple standard configuration and a pooled configuration. I know that logging is working in general because i'm seeing my log messages in the console. I also used the mysql db table setup script provided by logback for mysql. Furthermore, I am able to write to the db from my application so i'm absolutely sure that the permissions are correct and the mysql driver is installed and in my classpath. I'm posting my config file minus my username and password. Hopefully I have just missed something simple... Thanks for any help in advance.. Is there any way to log the logging so that I can see what's going wrong with my logging. Seems strange but it would be useful.... jeff <?xml version="1.0" encoding="UTF-8"?> <configuration> <consolePlugin/>  <appender name="OFLAC" class="ch.qos.logback.core.ConsoleAppender"> <filter class="ch.qos.logback.classic.filter.LevelFilter"> <level>INFO</level> <onMatch>ACCEPT</onMatch> <onMismatch>DENY</onMismatch> </filter> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern> %date [%thread] %-5level %logger - %msg%n </Pattern> </layout> </appender> <appender name="OFLADB" class="ch.qos.logback.classic.db.DBAppender"> <connectionSource class="ch.qos.logback.core.db.DataSourceConnectionSource"> <dataSource class="com.mchange.v2.c3p0.ComboPooledDataSource"> <driverClass>com.mysql.jdbc.Driver</ driverClass> <jdbcUrl>jdbc:mysql://127.0.0.1:3306/ statistics</jdbcUrl> <user>myusername</user> <password>mypassword</password> </dataSource> </connectionSource> </appender> <root> <level value="DEBUG" /> <appender-ref red="OFLADB"/> <appender-ref ref="OFLAC" /> </root> <logger name="org.red5.server.webapp.oflaDemo"> <level value="INFO" /> </logger> </configuration>

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SMTPAppender username/password
by Zach Cox 11 Mar '08

11 Mar '08

My SMTP server needs a username/password specified even when connecting locally on localhost. I noticed this related thread: http://www.nabble.com/SMTPAppender%3A-authentication-option-missing--td9983… Was SMTP auth ever implemented in logback? Thanks, Zach

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how to add substitutionProperties in code
by Tom Eyckmans 11 Mar '08

11 Mar '08

Hi, Is it possible to use the substitution property mechanism from code when initializing logback? LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); try { JoranConfigurator configurator = new JoranConfigurator(); configurator.setContext(lc); lc.shutdownAndReset(); // Can't set the property here because the execution context is null configurator.doConfigure(contextProperties.getProperty(" logging.properties")); configurator.getExecutionContext().addSubstitutionProperty(" service.name", "serviceOne"); // I think this is to late to set the property and it isn't used anymore } catch (JoranException je) { StatusPrinter.print(lc); } with configuration file: <?xml version="1.0" encoding="UTF-8"?> <configuration> <appender name="console" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36}.%M [%line] - %msg%n</pattern> </layout> </appender> <appender name="A2" class="ch.qos.logback.core.rolling.RollingFileAppender "> <file>log/${service.name}.log</file> <Append>true</Append> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern>>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36}.%M [%line] - %msg%n</pattern> </layout> <triggeringPolicy class=" ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> <rollingPolicy class=" ch.qos.logback.core.rolling.FixedWindowRollingPolicy"> <FileNamePattern>log/${service.name}.%i.log.zip</FileNamePattern> <MinIndex>1</MinIndex> <MaxIndex>10</MaxIndex> </rollingPolicy> </appender> <root> <level value="INFO"/> <appender-ref ref="console"/> </root> </configuration> making every service that reuses this configuration but log to it's own logfile. Thanking you in advance, Tom

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Question about MDC in servlet init() method
by Stefan Frings 03 Mar '08

03 Mar '08

Hello, Lets assume I call MDC.put("applicationName","whatever") in the servlet init() method. Can I read this later in the service() method? I'm asking because some weeks ago I noticed that this did not work. I assumed that the threads running service() are not childrens of the thread that runs init(). However, I tried this again today, and this time it worked fine. I was not able to reproduce the problem. But before I do such things now in real web applications, I like to be sure if thats Ok. Can I set MDC variables in init() and read them in service() safely, or does this work only randomly or under special conditions?

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Dale Chapman is out of the office.
by Dale.Chapman＠medavie.bluecross.ca 01 Mar '08

01 Mar '08

I will be out of the office starting 22/02/2008 and will not return until 10/03/2008. I will be out of the office from February 23 returning on March 10. Please contact Darren Swansburg for all matters related to the SOA Pilots. Please contact Marc Arsenault for all matters related to Reference Architecture and Common Code. Thanks. ----------------------------------------------------------------------- This communication, including any attached documentation, is intended only for the person or entity to which it is addressed, and may contain confidential, personal, and/or privileged information. Any unauthorized disclosure, copying, or taking action on the contents is strictly prohibited. If you have received this message in error, please contact us immediately so we may correct our records. Please then delete or destroy the original transmission and any subsequent reply. Thank you. La présente communication, y compris toute pièce qui y a été jointe, est destinée uniquement à la personne ou à l’entité à laquelle elle a été adressée, et contient des renseignements à caractère confidentiel et personnel. Toute diffusion ou reproduction non autorisée ou toute intervention entreprise relativement à son contenu est strictement interdite. Si vous avez reçu ce message par erreur, veuillez nous le signaler immédiatement afin que nous puissions effectuer la correction à nos dossiers. Veuillez par la suite supprimer ou détruire le contenu de la transmission originale ainsi que toute réponse ultérieure. Merci. -----------------------------------------------------------------------

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