June 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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(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

2 1

additional feature for DuplicateMessageFilter desired
by the KD 27 Jun '12

27 Jun '12

I tried to use this filter for limiting number of errors sent to production support. but, without a time duration, it is not practical, because if i set the repetition limit to 3, for example, it will be never logged again. this is not good since i won't be able to tell whether this is caused by the problem being gone or by the filtering. it would be more useful, for my purpose at least, to have some property specifiying some time window. For example, drop logging if within 1 hour a message have been repeated more than 3 times. this will limit the number of repeated messages, but also keep throwing them to indicate the continued existence of the error. -- View this message in context: http://old.nabble.com/additional-feature-for-DuplicateMessageFilter-desired… Sent from the Logback User mailing list archive at Nabble.com.

2 1

Problems with jaino evaluator
by George, Kenneth V [NTK] 22 Jun '12

22 Jun '12

Good afternoon. I have a situation where I need to log information to 2 separate files, but under different conditions, for the same context/class files. Basically, I have 2 files: 1 log, 1 alarm_log. I need to set the level for reporting to INFO, but only log WARN/ERROR messages to alarm_log when a MDC value of "SEND_ALARM" is set. I have tried to place a <filter> of type "ch.qos.logback.core.filter.EvaluatorFilter" and cannot seem to get it to work, messages of Level INFO show-up in the alarm_log. Can this even be done (maybe I am just using it wrong)? Here is the section of my logback.xml file specifying the appender: <appender name="ALARM" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.core.filter.EvaluatorFilter"> <evaluator> <expression> if (mdc == null || mdc.get("SEND_ALARM") == null) return false; return true; </expression> </evaluator> </filter> <file>logs/alarms.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  <fileNamePattern>logs/archive/logFile.%d{yyyy-MM-dd}.log</fileNamePattern>  <maxHistory>30</maxHistory> </rollingPolicy> <encoder> <pattern>%date{MMM dd, yyyy hh:mm:ss} %-5level %msg%n</pattern> </encoder> </appender> Thanks. ________________________________ This e-mail may contain Sprint Nextel proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.

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Re: [logback-user] Problems with jaino evaluator
by George, Kenneth V [NTK] 22 Jun '12

22 Jun '12

Can anyone speak to this issue? From: George, Kenneth V [NTK] Sent: Wednesday, June 20, 2012 12:34 PM To: 'logback users list' Subject: Problems with jaino evaluator Good afternoon. I have a situation where I need to log information to 2 separate files, but under different conditions, for the same context/class files. Basically, I have 2 files: 1 log, 1 alarm_log. I need to set the level for reporting to INFO, but only log WARN/ERROR messages to alarm_log when a MDC value of "SEND_ALARM" is set. I have tried to place a <filter> of type "ch.qos.logback.core.filter.EvaluatorFilter" and cannot seem to get it to work, messages of Level INFO show-up in the alarm_log. Can this even be done (maybe I am just using it wrong)? Here is the section of my logback.xml file specifying the appender: <appender name="ALARM" class="ch.qos.logback.core.rolling.RollingFileAppender"> <filter class="ch.qos.logback.core.filter.EvaluatorFilter"> <evaluator> <expression> if (mdc == null || mdc.get("SEND_ALARM") == null) return false; return true; </expression> </evaluator> </filter> <file>logs/alarms.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  <fileNamePattern>logs/archive/logFile.%d{yyyy-MM-dd}.log</fileNamePattern>  <maxHistory>30</maxHistory> </rollingPolicy> <encoder> <pattern>%date{MMM dd, yyyy hh:mm:ss} %-5level %msg%n</pattern> </encoder> </appender> Thanks. ________________________________ This e-mail may contain Sprint Nextel proprietary information intended for the sole use of the recipient(s). Any use by others is prohibited. If you are not the intended recipient, please contact the sender and delete all copies of the message.

1 0

Getting class packaging information with IThrowableRenderer
by Thilo-Alexander Ginkel 20 Jun '12

20 Jun '12

Hi there, I very much like the class packaging information displayed for a stacktrace with the %xEx{depth} pattern. Due to its IThrowableRenderer mechanism, using %xEx{depth} with an HTMLLayout does not seem to make much sense, though. OTOH, the DefaultThrowableRenderer does not seem to emit this information by default (nor does it seem to be configurable). Is there a way to get this class packaging information for information rendered by a HTMLLayout's IThrowableRenderer without reinventing the wheel? If the latter is needed, where is the code implemeting the class packaging information retrieval for %xEx{depth} located? Thanks, Thilo

2 1

Approaches to implement RFC5424 structured data support
by Thilo-Alexander Ginkel 20 Jun '12

20 Jun '12

Hi there, I was wondering whether anyone has so far been successful in implementing RFC5424 [1] structured data syslog support using logback (despite it probably being DOA [2] - the alternatives are IMHO currently in a too early stage). In the archives I see one attempt at a pretty invasive approach that altered the logback implementation itself (unfortunately, the fork over at Github seems to be no longer maintained) as well as a proposal [3] to use a custom encoder along with a special "RFC5424Aware" interface. Would the latter still be the preferred way to go? Reading through the code, I guess a custom Layout (that knows how to deal with RFC5424Aware instances) should also do the trick... I guess one would also need to replace SyslogStartConverter due to the changed message header... Any input is appreciated! Thanks, Thilo [1] http://tools.ietf.org/html/rfc5424 [2] http://www.gossamer-threads.com/lists/rsyslog/users/6361 [3] http://mailman.qos.ch/pipermail/slf4j-dev/2010-March/002878.html

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how to get all configured appenders over api
by ralph 19 Jun '12

19 Jun '12

hello I need for a dynamic configuration of a logger, the list of all configured appenders (e.g all FileAppender) even if some appenders are initially not attached to any loggers ch.qos.logback.classic.Logger log = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("de.foo" ); log.setLevel( Level.DEBUG ); log.setAdditive( false ); log.addAppender( ????? ) how can I get this list of appenders over the logback api? Regards Ralph

1 0

Customize how some objects are "printed"
by Blaise Gervais 19 Jun '12

19 Jun '12

Hi everyone, We are used to log the current user. But the current user is a complex object with a ugly "toString()" who print many unuseful informations with new lines. And, of course, we can't override that. To have clean logs, we have to walk into the user object structure until relevant informations and deal with many possibles null pointers. My question is : Is it a way to register something usable by SLF4J to render an object to a String ? Something like : <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> *<renderer class="com.our.company.logging.UserContextRenderer" **/>* </appender>

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