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by Jenny 03 Aug '12

03 Aug '12

http://estatevenues.ca/wp-admin/info.php?congress72.html

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Logback-beagle with config file used for multiple environments
by Noremac 03 Aug '12

03 Aug '12

I found the newly released Logback-Beagle to look pretty cool. I want it! However, I see that you need to add the tag <consolePlugin /> to the config file. This makes me worry a little about the implications on this when that same config file is used in test and production. So it looks like if I add the consolePlugin then I'll be having an added appender trying to spit out logs to the local machine (not desired). Basically, I only want the extra appender in development. Is there any other way to do this other than doing it programmatically (by doing a check on which environment it is in).

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Release of logback-beagle 1.0.0
by ceki 02 Aug '12

02 Aug '12

Hello all, I am happy to announce the first release of logback-beagle, an eclipse plug-in for viewing logs. For more information on logback-beagle please see: http://logback.qos.ch/beagle/ The logback-beagle plug-in can be installed in Eclipse by adding the URL http://logback.qos.ch/p2/ as a new Eclipse software site under the "Intall New Software" page. You can receive logback related announcements by subscribing to the QOS.ch announce mailing list. To subscribe to QOS.ch announce list, please visit the following URL. http://www.qos.ch/mailman/listinfo/announce Enjoy, -- Ceki http://tinyurl.com/proLogback

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How should I unit test my programmatic setup of appenders?
by Noremac 30 Jul '12

30 Jul '12

I want to unit test some methods I have for programmatically adding appenders to the root logger. It seems that I don't have full access to the things I have set, specifically the marker evaluator. Additionally, as the markerEvaluator is not a filter, I can't call the getFilterChainDecision method. Is there a better approach to doing this? I've seen posted the idea of using a ListLogger to perform logging and then query to see if the correct logs went through, but that doesn't test "my" appender.

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how to remove old log files in this sifting appender configuration
by Andreas Kruthoff 26 Jul '12

26 Jul '12

Hi I'm trying to resolve a scenario with the following sifting appender configuration, but got problems with too many open files. I use logback to produce CSV files. The ${hour} key is set based on the content (within my %msg). Rollover is every minute. <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender"> <discriminator> <key>hour</key> <defaultValue>unknown</defaultValue> </discriminator> <sift> <appender name="DATA-${hour}" class="com.nexustelecom.minaclient.writer.MessageAppender"> <file>${java.io.tmpdir}/data-${hour}.csv</file> <encoder> <pattern>%msg</pattern> </encoder> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>${java.io.tmpdir}/data-${hour}-%d{yyyyMMddHHmm}.csv</fileNamePattern> <cleanHistoryOnStart>true</cleanHistoryOnStart> <maxHistory>3</maxHistory> </rollingPolicy> </appender> </sift> </appender> Suppose that I started the application at 11, and that current time is 16, so most of the data goes into data-16.csv, and some goes into data-15.csv, data-14.csv, but nothing goes into older data files. After a while, I get more and more old files, active files and rolled files, i.e. data-11.csv, data-12.csv, and data-11-201207111125.csv, data-11-201207111132.csv, and so on. Such old files (from 11, or 12) are under logback control, but as they don't get new data anymore, they stay open forever and are never cleaned up. There aren't new 'events' for these files. The JVM shows an increasing number of active threads (probably the loggers) at the same time, which causes problems after a few hours. Is there a way to configure logback to handle my scenario? This email and any attachment may contain confidential information which is intended for use only by the addressee(s) named above. If you received this email by mistake, please notify the sender immediately, and delete the email from your system. You are prohibited from copying, disseminating or otherwise using the email or any attachment.

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ResilientFileOutputStream close method
by Dario Campagna 26 Jul '12

26 Jul '12

Hi all, I noticed a possible problem in the class ResilientFileOutputStream, used in FileAppender to create the output stream. The class ResilientFileOutputStream has two output stream, a FileOutputStream and an OutputStream (instantiated with a BufferedOutputStream). The latter is inherited from the class ResilientFileOutputStreamBase that ResilientFileOutputStream extends. Since ResilientFileOutputStream has no close method, when a FileAppender is stopped the close method of ResilientFileOutputStreamBase gets called, this method only close the OutputStream. Hence, when a FileAppender is stopped, the FileOutputStream of ResilientFileOutputStream is not closed. As a consequence, instances of FileAppender, ResilientFileOutputStream and FileOutPutStream are kept in memory even if they are no more used. Dario

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Tomcat Multi Instance - Logback-Access
by MikeJC 25 Jul '12

25 Jul '12

How can I configure logback-access so that it can run in multi-instances? If I drop it in the instance conf folder I see the message "[/opt/apache-tomcat/conf/logback-access.xml] does not exist". If I drop at the root level I do not see any logging from the instance. /opt/apache-tomcat main install -- multi instance -- /opt/tomcat/app1 /opt/tomcat/app2 I have placed logback-access and logback core Tomcat : 7.0.29 logback-access-1.0.6.jar logback-core-1.0.6.jar -- View this message in context: http://old.nabble.com/Tomcat-Multi-Instance---Logback-Access-tp34207160p342… Sent from the Logback User mailing list archive at Nabble.com.

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Changing logback configurations programatically
by Steve Cohen 24 Jul '12

24 Jul '12

With the scan option logback can change its configuration on the fly. I would like to take this one step further by adding to my Java Swing application that uses logback, a facility through which the user could specify a logging configuration at the direction of technical personnel, within the application's user interface, to change logging configuration without having to copy files, etc. The user would just indicate that they wanted "configuration 4" for example and it would happen. This would be implemented by the program writing a file to the place where the program had specified the configuration to live. I could obviously do this by reading the system property logback.configurationFile. Is there another way? Is there an API that provides this information? +

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Hide container's logback.xml from web application
by Ross Sargant 23 Jul '12

23 Jul '12

Hello, I have a pretty simple setup consisting of Jetty and two web applications. The logging for the Jetty container and each web app is automatically configured with separate logback.xml files. The configuration works but there is a nuance which I've never been able to resolve. The web application's class loader "sees" the logback.xml loaded by the Jetty container's parent class loader. This causes logback to dump its configuration status on web app initialization to show me the "Resource [logback.xml] detected multiple times on the classpath" warning. One entry under WEB-INF/classes/logback.xml and one under the jetty resources directory. I completely understand what is going on but I'd really prefer not to look at this output all the time. Is there anyway I can re-arrange the setup to support automatic isolated configuration of jetty and the web apps without having to see this warning? I repeat, the configuration is working correctly and it is only this output (shown on the web app initialization) which is a little irksome. Thank you! -- Ross Sargant Software Engineer p: 954-796-2592 email: rsargant(a)tvrc.com TVR Communications LLC 541 S. State Road 7,Suite 5,Margate, Florida,33068 http://www.tvrc.com

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Programmatic configuration of OutputStreamAppender
by Markos Fragkakis 18 Jul '12

18 Jul '12

Hi all, I am trying to configure Logback programmatically to write logs into an OutputStream. The following libraries are in my classpath: * logback-core-1.0.6.jar * logback-classic-1.0.6.jar * slf4j-api-1.6.4.jar In fact, I _do_ get the logs in the console, which tells me that Logback has started with the default configuration of outputting to the Console. What I want, however, is to programmatically add an appender to a Logger, so that it also outputs to an OutputStream. The following snippet shows what I am doing, and the result is only writing logs to the Console: Any ideas what I'm doing wrong? private static ByteArrayOutputStream baos = newByteArrayOutputStream(100000000); ... private void method() { OutputStreamAppender<ILoggingEvent> logbackAppender = newOutputStreamAppender<ILoggingEvent>(); LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); PatternLayoutEncoder encoder = new PatternLayoutEncoder(); encoder.setContext(lc); encoder.setPattern("%-5level [%thread]: %message%n"); logbackAppender.setContext(lc); logbackAppender.setName("Output stream logback appender"); logbackAppender.setOutputStream(baos); logbackAppender.setEncoder(encoder); LOGGER.addAppender(logbackAppender); LOGGER.debug("This"); LOGGER.info("can't be"); LOGGER.info("happening") } -- Sent from my iPhone

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