November 2013 - 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

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

3 2

Configuring FileAppender - only empty logfile created
by stepwalk 28 Nov '13

28 Nov '13

Hi Everyone :-) i've many troubles getting my FileAppender creating Logfiles. The Logfile itself is created, but it's always empty. I don't know what else i can do??! May someone can have a look at my code and help me out. Cheers Stephan import org.slf4j.Logger; import org.slf4j.LoggerFactory; import ch.qos.logback.classic.encoder.PatternLayoutEncoder; import ch.qos.logback.classic.spi.ILoggingEvent; import ch.qos.logback.classic.Level; import ch.qos.logback.classic.LoggerContext; import ch.qos.logback.core.ConsoleAppender; import ch.qos.logback.core.FileAppender; import ch.qos.logback.core.util.StatusPrinter; part of my main code: // get instance of RootLogger for modification ch.qos.logback.classic.Logger logger = (ch.qos.logback.classic.Logger) LoggerFactory .getLogger(Logger.ROOT_LOGGER_NAME); // reset the default context (which may already have been initialized) // since we want to reconfigure it LoggerContext logContext = logger.getLoggerContext(); logContext.reset(); // setup FileAppender PatternLayoutEncoder encoder1 = new PatternLayoutEncoder(); encoder1.setPattern("%date %level [%thread] [%file:%line] %msg%n"); encoder1.setContext(logContext); encoder1.start(); // create FileAppender FileAppender<ILoggingEvent> logfileOut = new FileAppender<ILoggingEvent>(); logfileOut.setAppend(true); logfileOut.setFile("/home/stepwalk/AlmiraTestLocal/EclipseTestLogs/" + name + "_" + System.currentTimeMillis() + ".log"); logfileOut.setContext(logContext); logfileOut.setEncoder(encoder1); logfileOut.start(); // create ConsoleAppender ConsoleAppender<ILoggingEvent> consoleOut = new ConsoleAppender<ILoggingEvent>(); consoleOut.setEncoder(encoder1); consoleOut.start(); // attach the rolling file appender to the root logger logger.addAppender(logfileOut); logger.addAppender(consoleOut); logger.setLevel(Level.DEBUG); // print logback internal status messages StatusPrinter.print(logContext); ......more code...... -- View this message in context: http://logback.10977.n7.nabble.com/Configuring-FileAppender-only-empty-logf… Sent from the Users mailing list archive at Nabble.com.

2 3

Logback in OSGi
by Frederik De Backer 22 Nov '13

22 Nov '13

Dear, We are using logback in an OSGi context at out current project. For those that are interested, I wrote a blog article on how we combine OSGi and logback together. You can find it here: http://blog.dbfconsult.be/?p=5 kr, Frederik.

1 0

Request and response using Logback
by gaston sponer 20 Nov '13

20 Nov '13

Hi, I'm trying to render an XML Request/Response file using Logback, I want to log a XML request or response according to the logger level.Ex: on Error level: <OldSection> <sectionTitle>Sample Title</sectionTitle> <label> Hello Label </label> <heading>Hi </heading> <NewSection> <section> <InteractionSection> <sectionTitle>Section Title</sectionTitle> <label> Hello </label> <heading>Hi </heading> <para> ... ... </para> </InteractionSection> <section> </NewSection> </OldSection> on Debug level: <OldSection> <sectionTitle>Sample Title</sectionTitle> <label> Hello Label </label> <heading>Hi </heading> <NewSection> <section> <InteractionSection> <sectionTitle>Section Title</sectionTitle> </InteractionSection> <section> </NewSection> </OldSection> on Info level: <OldSection> <sectionTitle>Sample Title</sectionTitle> </OldSection> Any idea if I can use Logback to do that?Thanks.

2 1

DuplicateMessageFilter : time based duplication
by Nicolas G 13 Nov '13

13 Nov '13

Hi, We are using a modified version of ch.qos.logback.classic.turbo.DuplicateMessageFilter in our project. We replaced the LRUMessageCache with a cache with a time based eviction. This new cache is build with guava CacheBuilder. The goal is to avoid duplicate messages during a time frame. I joined the class as it may be useful to other Thanks Nicolas

1 0

Mailing lists archive links not so happy
by Jason Dillon 09 Nov '13

09 Nov '13

The http://logback.qos.ch/mailinglist.html page has links to MARC and Nabble but these links do not seem to be working. —jason

1 0

SimpleServerSocket
by José Laredo López 08 Nov '13

08 Nov '13

Hi, I'm trying to connect to a SimpleServerSocket like the example in the documentation with a SocketAppender. If I send messages continuosly, the server don't receive the messages. If the client programs sends the messages with a sleep, the server receives the message correctly. Can you help me?. This is the code and the configuration file: Client program: /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package logbackc; import java.util.ArrayList; import java.util.Date; import java.util.Random; import java.util.logging.Level; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class LogBackC { /** * @param args the command line arguments */ public static void main(String[] args) throws InterruptedException { Logger logger = LoggerFactory.getLogger("ABCDEF"); Integer th = 1; Integer pe = 100; Random r = new Random(); for (int i = 0; i < pe; i++) { Integer num = r.nextInt(10); Boolean war = r.nextBoolean(); String message= "ABCDEF-" + (war ? "W" : "E") +"-"+ num; logger.info("{} {} {}",message, th, i); } } } Client config file: <?xml version="1.0" encoding="UTF-8"?> <configuration> <property name="HOSTNAME" value="127.0.0.1" /> <property name="PORT" value="6000" /> <appender name="SOCKET" class="ch.qos.logback.classic.net.SocketAppender"> <remoteHost>${HOSTNAME}</remoteHost> <port>${PORT}</port> <reconnectionDelay>10000</reconnectionDelay> <includeCallerData>false</includeCallerData> </appender> <root level="INFO"> <appender-ref ref="SOCKET" /> </root> </configuration> Server config file: <?xml version="1.0" encoding="UTF-8"?> <configuration> <appender name="FILE" class="ch.qos.logback.core.FileAppender"> <file>testFile.log</file> <append>true</append> <encoder> <pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern> </encoder> </appender> <root level="DEBUG"> <appender-ref ref="FILE" /> </root> </configuration> Thank you very much

1 0

TimeBasedRollingPolicy
by Per Jørgen Vigdal 04 Nov '13

04 Nov '13

Hallo. Is it possible to configure a TimeBasedRollingPolicy so that the file that it is being logged to does not have any date in the filename, but the rolled over files has. Thanks PerJ

2 2

How to handle logging in aop methods
by Mandy Warren 01 Nov '13

01 Nov '13

Hi, I am using AOP to log exceptions from methods after they are thrown. I have an Aspect which does the following:- @AfterThrowing(pointcut = "execution(* *(..))", throwing = "ex") public void logExceptions "(JoinPoint jp, Throwable ex) { Logger exceptionLogger = LoggerFactory.getLogger(jp.getStaticPart().getSignature().getDeclaringTypeName()); exceptionLogger.error(ex.getMessage(), ex); } Now, my logback config is set to log the method and line number as follows:- %class$%M:%L$ This works great for classes which don't use the aspect but for the classes which throw the exception I get the method logged as "logExceptions" (ie. the method in the Aspect) and the line number of the line where the exceptionLogger.error is called. What I really want to log is the calling class and the method which threw the exception. So I used %logger% instead of %class% which worked great (it gave me the calling class) BUT I can't see a way to get the method from the logger (I can get it via the AOP joinpoint but that doesn't help!). Is it possible? I also tried using %caller{2} which did work (although the line number wasn't accurate) but I'd like to remove the Caller+0 part and reformat the Caller+1 line to look the same as the output from %class$%M:%L$ - not sure if this is possible or whether there is a simpler way to achieve what I want Any advice much appreciated! Many thanks Mandy Sent from a mobile device

1 0