May 2013 - logback-user - mailman3.qos.ch

Re: [logback-user] Logback suddenly stopped logging
by Andreas Dejung 19 Jun '14

19 Jun '14

I had the same problem and I think I know why J Solaris does interrupt IO blocked thread which then causes the OutputStreamAppender to catch the IOException in line 218 (version 0.9.24). I actually run version 0.9.18 but this part has not change so I guess it will behave the same way. If we look at http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4385444 InterruptedIOException should not be required by platform specification (sol) And log4j https://issues.apache.org/bugzilla/show_bug.cgi?id=44157 InterruptedIOException ignored by log4j I think it should be solved the same why } catch (InterruptedIOException iioe){ //give the thread a changes to act on interruption and then carry on Thread.currentThread().interrupt(); } catch (IOException ioe) { // as soon as an exception occurs, move to non-started state // and add a single ErrorStatus to the SM. this.started = false; addStatus(new ErrorStatus("IO failure in appender", this, ioe)); } I could not find the jira entry mentioned in this thread therefore I write it here J BTY the jvm option -XX:-UseVMInterruptibleIO does prevent the interruption by solaris but that's only a workaround and not solving the problem ;) Cheers Andy

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Re: [logback-user] Add header-lines to each log file
by Schoeftner, Thomas 20 May '14

20 May '14

Sorry to bump this topic again. Any ideas? Thanks, -Tom

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Replacing Tomcat7 Logging with Logback?
by James Carr 17 Sep '13

17 Sep '13

Hi All, Is there a good tutorial or documentation on replacing Tomcat's default logging with logback? So far my searches turn up http://logback.qos.ch/access.html which only seems to work with access logs, not the actual server logging itself. Thanks, James

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DBAppender and markers
by Leonardo Souza 21 Aug '13

21 Aug '13

Hi, We have a system with a lot of log statements using markers, this.logger.info(this.marker, "ex fvmo dare lvcem"); We are planning to store the logs in a database using DBAppender but ther marker do not have a column, only appears in the formatted_message field. We will query this database filtering by the markers, a sql like query is not a desirable solution. Anyone has a better idea instead of creating a custom appender? thanks .. -- Leonardo S Souza

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debug output when using Groovy configuration
by sw＠stinemail.com 17 Jun '13

17 Jun '13

Hi, Thank you for logback and slf4j. We have found them very useful. I would like to inquire about debugging output, starting with the intended behavior of the system property logback.debug. It appears to have no effect if an application is configured via Groovy. Setting logback.statusListenerClass does have some effect, though the output is not as verbose as with XML configuration. I created a sample project that demonstrates the differences: https://github.com/dstine/logback-debug-groovy. My experiments use the latest released version of logback 1.0.12. My first question is, should logback.debug behave the same for both XML and Groovy configuration? If yes, my next question is, how would we fix this? I see the following code in ConfigurationAction (XML): https://github.com/qos-ch/logback/blob/71886409e62533af0bdf1d922a7d66f3818d… It looks like logback.debug is simply a shortcut for adding the status listener. Is that correct, or is there anything else at play? Should we "just" copy this code to ConfigurationDelegate (Groovy), or centralize it somehow? Next, the output for Groovy config appears to not include information about configuring loggers, whereas XML config provides this output: 11:43:58,046 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property 11:43:58,078 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to DEBUG 11:43:58,078 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[ROOT] Last, are there other differences I have not yet noticed? Thanks, Dan

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Can we have more then one varable in file name
by praveen patil 30 May '13

30 May '13

Hi everyone I am setting two variable in MDC and then in my appender in file tag i gave two variable ${configId} and ${threadName}. but when i run it i get only threadName value and for ${configId} it shows configId is UNDEFIND. but when the mdc context i found it is in the context, then why it giving error. <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender"> <discriminator class="com.hotwaxmedia.logger.ThreadNameBasedDiscriminator"/> <sift> <appender class="ch.qos.logback.core.FileAppender"> <file>runtime/logs/DataManagerLog/${configId}-${threadName}.html</file> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern><div class="%p">%d $${threadName} -%X{configId}$ [%logger{0} : %-5level] %msg%n%rEx</div></pattern> </layout> </appender> </sift> </appender> please help. Praveen

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Splitting logback-access logs per application
by Xavier Dury 29 May '13

29 May '13

Hi, is it possible to split logback-access logfile per application with sifting (using something like ${contextName} in the filename)? Which discriminator should be used? Thanks, Xavier

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How could i get the file path that i set in appender in logback
by praveen patil 29 May '13

29 May '13

Hi folks, How could i get the file path that i set in appender - the following is appender i am using. <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender"> <discriminator class="com.hotwaxmedia.logger.ThreadNameBasedDiscriminator"/> <sift> <appender class="ch.qos.logback.core.FileAppender"> <file>runtime/logs/app-${threadName}.html</file> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern><div class="%p">%d $${threadName}$ [%logger{0} : %-5level] %msg%n%rEx</div></pattern> </layout> </appender> </sift> </appender> please help. Thanx and regards praveen

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Logaback not initializing !!!!!!!
by praveen patil 29 May '13

29 May '13

Hi folks, I am an ofbiz user. In pur project we are facing a requirement to logging on per thread basis. ofbiz uses Log4j default, but in our custom component we have used logabck with slf4j. I have put all the jar correctly and logback.xml on class path. this is my config file ?xml version="1.0" encoding="UTF-8"?> <configuration> <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender"> <discriminator class="com.logger.ThreadNameBasedDiscriminator"/> <sift> <appender class="ch.qos.logback.core.FileAppender"> <file>runtime/logs/app-${threadName}.html</file> <layout class="ch.qos.logback.classic.PatternLayout"> <pattern><div class="%p">%d (%t) [%24F:%-3L:%-5p]%x %m </div>%n</pattern> </layout> </appender> </sift> </appender> <root level="ALL"> <appender-ref ref="SIFT" /> </root> </configuration> How do i know that my logback.xml has initilized and if not initilized how do i configured it manually (programatically). Thanx in advance cheers, praveen

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How to make LogBack use MessageFormat
by Heitor Machado 28 May '13

28 May '13

Is it possible to use MessageFormat in logback ? I saw that it uses slf4j MessageFormat*ter*, because its faster as said here: http://stackoverflow.com/questions/8635769/out-of-curiosity-why-dont-loggin… SLF4J uses its own message formatting implementation which differs from that of the Java platform. This is justified by the fact that SLF4J's implementation performs about 10 times faster but at the cost of being non-standard and less flexible. The ideia is to use the full stack feature of MessageFormat like that: Object[] arguments = { new Integer(7), new Date(System.currentTimeMillis()), "a disturbance in the Force" }; String result = MessageFormat.format( "At {1,time} on {1,date}, there was {2} on planet {0,number,integer}.", arguments); output: At 12:30 PM on Jul 3, 2053, there was a disturbance in the Force on planet 7. anyone ?

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