July 2012 - 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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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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(Important) Dynamically change the scan period
by Yihya Hugirat 08 Apr '13

08 Apr '13

hi all, i have migrated to logback to be able to change the log levels dynamically. i'm testing it now with calssfish 3.01 and somehow it is not working when i change the levels in logback.xml there nothing happens. by deploying from netbeans i get the following: |-INFO in ch.qos.logback.classic.turbo.ReconfigureOnChangeFilter@11bfee0 - Will scan for changes in [[C:\Dokumente und Einstellungen\user_Home\Eigene Dateien\NetBeansProjects\WS-LDAP\build\web\WEB-INF\classes\logback.xml]] every 15 seconds. but when i change the levels in this file nothing happens Any help will be appreciated Hugirat -- إِنَّ الَّذِينَ يُحِبُّونَ أَنْ تَشِيعَ الْفَاحِشَةُ فِي الَّذِينَ آمَنُوا لَهُمْ عَذَابٌ أَلِيمٌ فِي الدُّنْيَا وَالآخِرَةِ وَاللَّهُ يَعْلَمُ وَأَنْتُمْ لا تَعْلَمُونَ My public key please use it when you contact me: هذا مفتاحي العام الرجاء أستخدامه عند الإتصال بي: 09BA B710 4B98 ECDA 8C0A 6CB1 2E1E CF88 6A12 F2C3

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SMTPAppender, HTMLLayout with text/plain
by Filipe Sousa 14 Nov '12

14 Nov '12

Hi. For some reason I'm receiving email reports with mime type text/plain and my email client shows all the html code. I'm attaching a report sent by logback. I'm using javax.mail 1.4.4 and this logback (1.0.3) configuration <?xml version="1.0" encoding="UTF-8"?> <configuration scan="true" scanPeriod="5000"> <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>../logs/sama.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <fileNamePattern>logFile.%d{yyyy-MM-dd}.log</fileNamePattern> <maxHistory>30</maxHistory> </rollingPolicy> <encoder> <pattern>%d [%thread] %-5level %logger{36} - %msg%n</pattern> </encoder> </appender> <appender name="mail" class="ch.qos.logback.classic.net.SMTPAppender"> <smtpHost>mail.ipb.pt</smtpHost> <to>filipe(a)ipb.pt</to> <from>noreply(a)ipb.pt</from> <subject>[sama]: %logger{20} - %m</subject> <layout class="ch.qos.logback.classic.html.HTMLLayout" /> <filter class="ch.qos.logback.classic.filter.ThresholdFilter"> <level>WARN</level> </filter> </appender> <logger name="org.eclipse.jetty" level="WARN" /> <logger name="org.apache.cxf" level="WARN"/> <logger name="pt.ipb.sama" level="WARN" /> <root level="WARN"> <appender-ref ref="file" /> <appender-ref ref="mail"/> </root> </configuration> Thanks -- Filipe Sousa

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What support is needed to run with logback.groovy configuration?
by Steve Cohen 25 Aug '12

25 Aug '12

I switched my application from using logback.xml to using logback.groovy. I just wanted to try it but off the bat, I much prefer scanning through an easily alphabetized list of loggers in the groovy file to the mess that you get with XML and lots of loggers. However, my hopes for a quick success were dashed when I saw: Groovy classes are not available on the class path. ABORTING INITIALIZION. What must I do to my application classpath to allow logback configuration via groovy? The manual does not seem to have any information on this. Also, I noticed via goggling the issue that JSON causes an issue with groovy. This will also impact me as our application makes use of JSON. Thanks to anyone who can provide this information. Steve Cohen

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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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