November 2011 - logback-user

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

8 16

(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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Websphere specific JMX configuration?
by Sumanth Donthi 12 Jun '12

12 Jun '12

How can we enable JMX for logback in WebSphere ? Currently do not see ch.qos.logback.classic.jmx.Configurator in jconsole though <jmxConfigurator/> tag exist in logback configuration file. logback 0.9.27 WebSphere 7.0 This is similar to one posted earlier -- http://www.qos.ch/pipermail/logback-user/2010-November/001886.html -Sumanth

4 6

Class not found exception for LoggingEventVO
by MDerr＠nycm.com 13 Jan '12

13 Jan '12

I have an application client set up to send a logging message over a bus using a logback JMSQueueAppender. Logback version is 0.9.24 and slf4j version is 1.6.1. This is running on a Websphere 7.0 server in Rational Application Developer 7.5. I've tested the bus and queue with a simple text message using the RAD Universal Test Client and that works fine, so at least the foundation is solid. When I log a message to the message queue, I wind up with the following stack trace under a wide variety of attempts: [8/11/10 14:44:16:223 EDT] 0000002b SystemOut O Exception CWSIA0122E: An exception occurred deserializing a message, exception: java.lang.ClassNotFoundException: ch.qos.logback.classic.spi.LoggingEventVO. [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R javax.jms.MessageFormatException: CWSIA0122E: An exception occurred deserializing a message, exception: java.lang.ClassNotFoundException: ch.qos.logback.classic.spi.LoggingEventVO. [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.sib.api.jms.impl.JmsObjectMessageImpl.getObject( JmsObjectMessageImpl.java:277) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.csg.logger.mdb.NYCMLoggerMDB.handleMessage(NYCMLoggerMDB.java:45) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.csg.logger.mdb.NYCMLoggerMDB.onMessage(NYCMLoggerMDB.java:36) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ejs.container.MessageEndpointHandler.invokeMdbMethod( MessageEndpointHandler.java:1092) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ejs.container.MessageEndpointHandler.invoke( MessageEndpointHandler.java:777) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at $Proxy42.onMessage(Unknown Source) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.sib.api.jmsra.impl.JmsJcaEndpointInvokerImpl.invokeEndpoint( JmsJcaEndpointInvokerImpl.java:233) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.sib.ra.inbound.impl.SibRaDispatcher.dispatch( SibRaDispatcher.java:900) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.sib.ra.inbound.impl.SibRaSingleProcessListener$SibRaWork.run( SibRaSingleProcessListener.java:550) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ejs.j2c.work.WorkProxy.run(WorkProxy.java:399) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1550) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R Caused by: java.lang.ClassNotFoundException: ch.qos.logback.classic.spi.LoggingEventVO [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.lang.Class.forNameImpl(Native Method) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.lang.Class.forName(Class.java:136) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.util.WsObjectInputStream.loadClass(WsObjectInputStream.java:227 ) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.util.WsObjectInputStream.access$000(WsObjectInputStream.java:53 ) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.util.WsObjectInputStream$2.run(WsObjectInputStream.java:191) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.security.util.AccessController.doPrivileged( AccessController.java:118) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.util.WsObjectInputStream.resolveClass( WsObjectInputStream.java:164) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at com.ibm.ws.util.WsObjectInputStream.resolveClass( WsObjectInputStream.java:156) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1591) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1512) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1748) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1345) [8/11/10 14:44:16:223 EDT] 0000002b SystemErr R at java.io.ObjectInputStream.readObject(ObjectInputStream.java:364) [8/11/10 14:44:16:239 EDT] 0000002b SystemErr R at com.ibm.ws.sib.api.jms.impl.JmsObjectMessageImpl.getObjectInternal( JmsObjectMessageImpl.java:345) [8/11/10 14:44:16:239 EDT] 0000002b SystemErr R at com.ibm.ws.sib.api.jms.impl.JmsObjectMessageImpl.getObject( JmsObjectMessageImpl.java:271) [8/11/10 14:44:16:239 EDT] 0000002b SystemErr R ... 10 more This always happens when trying to get the message object out of the message in the onMessage code in my message driven bean. For example, the stack dump was generated at the event = . . . line in the code below: if (msg instanceof ObjectMessage){ ObjectMessage objectMesssage = (ObjectMessage) msg; System.out.println("Got ObjectMessage"); event = (ILoggingEvent) objectMesssage.getObject(); } I have the logback classic jar on my classpath successfully because I use a number of other classes from it in my code. If anyone can help with this, I would appreciate it. I can provide additional information as needed. Thanks, Merritt Derr ***CONFIDENTIALITY NOTICE*** This email and any attachments to it are confidential and intended solely for the individual or entity to whom it is addressed. Any unauthorized review, use, disclosure or distribution is prohibited. If you have received this email in error, please contact the sender by reply email and destroy all copies of the original message.

3 2

listening on rolling events
by Yair Ogen 15 Dec '11

15 Dec '11

Hi, Is there a way to add a listener to a RollingFileAppender so each time it rolls I can run some code in a call back function? Thanks. Yair

3 4

Substituting class/method names in logback log files with original names when deploying obfuscated code
by Christopher BROWN 05 Dec '11

05 Dec '11

Hello, What would be the best way to handle logging with logback when deploying obfuscated code? For example, with YGuard, when the obfuscator runs, it outputs a mapping file of obfuscated code (class names, method names, etc) to unobfuscated code. When a stacktrace or just any logging trace is output, the class/method names are obviously obfuscated. As it's possible to deploy this mapping with the code, say embedded in the same ".jar", all the information I would need is available. Without too much re-writing of code (default formatting with logback), what would be the best way to dynamically replace matching class/method names? Thanks, Christopher

4 7

Logback configuration using Groovy
by Yuvi 29 Nov '11

29 Nov '11

Hi, If i use logback.groovy to configure logback, i have to have groovy jar in classpath, else it fails. However logback dependencies page (http://logback.qos.ch/dependencies.html) doesn't speak about this. Am i missing something here? -Yuvaraj -- View this message in context: http://old.nabble.com/Logback-configuration-using-Groovy-tp32880402p3288040… Sent from the Logback User mailing list archive at Nabble.com.

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Re: [logback-user] EventLogger usage
by Yuvaraj Vanarase 29 Nov '11

29 Nov '11

Thanks Ralph. It was good explanation. Regards, Yuvaraj Yuvaraj Vanarase, Lead Technology - Software Phone: +91.20.40262000 Ext 2305|Mobile: +91.9850818870 | http://www.synechron.com SYNECHRON - - Top 15 Best IT Employers for 5 consecutive years (link). - Celebrating 10 Years! -----Original Message----- From: logback-user-bounces(a)qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of logback-user-request(a)qos.ch Sent: Monday, November 28, 2011 10:22 PM To: logback-user(a)qos.ch Subject: Logback-user Digest, Vol 2, Issue 40 Send Logback-user mailing list submissions to logback-user(a)qos.ch To subscribe or unsubscribe via the World Wide Web, visit http://mailman.qos.ch/mailman/listinfo/logback-user or, via email, send a message with subject or body 'help' to logback-user-request(a)qos.ch You can reach the person managing the list at logback-user-owner(a)qos.ch When replying, please edit your Subject line so it is more specific than "Re: Contents of Logback-user digest..." Today's Topics: 1. EventLogger usage (Yuvaraj Vanarase) 2. Re: EventLogger usage (Ralph Goers) 3. Substituting class/method names in logback log files with original names when deploying obfuscated code (Christopher BROWN) 4. Re: Substituting class/method names in logback log files with original names when deploying obfuscated code (Chris Pratt) ---------------------------------------------------------------------- Message: 1 Date: Mon, 28 Nov 2011 06:19:23 -0600 From: Yuvaraj Vanarase <yuvaraj.vanarase(a)synechron.com> To: "logback-user(a)qos.ch" <logback-user(a)qos.ch> Subject: [logback-user] EventLogger usage Message-ID: <5669C1899552264CA699F54A78E534D40F948B34F2(a)DFW1MBX18.mex07a.mlsrvr.com> Content-Type: text/plain; charset="us-ascii" Hi, Not able to understand the connection between MDC and EventLogger (slf4j). What I understood is, instead of doing separate log requests, one can populate EventData object and log the object by EventLogger. Anybody could illustrate this concept please? Regards, Yuvaraj Yuvaraj Vanarase, Lead Technology - Software Phone: +91.20.40262000 Ext 2305|Mobile: +91.9850818870 | http://www.synechron.com SYNECHRON - - Top 15 Best IT Employers for 5 consecutive years (link<http://www.synechron.com/news/news_best_employer_sep2011.htm>). - Celebrating 10 Years!

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EventLogger usage
by Yuvaraj Vanarase 28 Nov '11

28 Nov '11

Hi, Not able to understand the connection between MDC and EventLogger (slf4j). What I understood is, instead of doing separate log requests, one can populate EventData object and log the object by EventLogger. Anybody could illustrate this concept please? Regards, Yuvaraj Yuvaraj Vanarase, Lead Technology - Software Phone: +91.20.40262000 Ext 2305|Mobile: +91.9850818870 | http://www.synechron.com SYNECHRON - - Top 15 Best IT Employers for 5 consecutive years (link<http://www.synechron.com/news/news_best_employer_sep2011.htm>). - Celebrating 10 Years!

2 1

How to retrieve parent logger?
by Christian Migowski 25 Nov '11

25 Nov '11

Hi, how can I get the parent logger of a given logger in logback? What I want is to retrieve a list of all effective appenders on a given logger, I suppose therefore I need to call iteratorForAppenders() on the logger itself as well as on all parents, right? log4j had logger.getParent() but I cannot find something similar in logback. thanks in advance, best regards, christian! P.S. what I really want is to port this from log4j to logback, it gets a list of all logfiles attached to a given logger: org.apache.log4j.Logger testlogger = org.apache.log4j.Logger.getLogger(log.getName()); ArrayList<String> recvdMsg = new ArrayList<String>(); while (testlogger != null && testlogger instanceof org.apache.log4j.Logger) { Enumeration<Appender> loggers = testlogger.getAllAppenders(); while (loggers.hasMoreElements()) { Appender x = loggers.nextElement(); if (x instanceof FileAppender) { String filename = ((FileAppender) x).getFile(); if (filename != null) { File logfile = new File(filename); try { recvdMsg.add(logfile.getCanonicalPath()); } catch (IOException e) { //so we don't add the path, thats enough handling } } } } testlogger = (org.apache.log4j.Logger) testlogger.getParent(); }

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