June 2015 - logback-user - mailman3.qos.ch

using logback in an eclipse plugin
by Arne.Adams＠t-online.de 21 Jun '15

21 Jun '15

Hi, I am trying to use logback in an eclipse plugin. I wrapped logback-access-1.1.3.jar, logback-core-1.1.3.jar, logback-classic-1.1.3.jar in an clipse plugin project. (Export-Package: ch.qos.logback.core, ch.qos.logback.classic, ch.qos.logback.access ) I wrapped slf4j-api-1.7.12.jar in an eclipse plugin project, with Export-Package: org.slf4j, added dependency to the above:(Require-Bundle: LogbackAsPlugin;bundle-version="1.0.0") Added dependencies to the above plugins in my plugin project. I got: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. Found a hint in the web indicating that adding slf4j-simple jar to the dependencies might help, did add slf4j-simple-1.7.12.jar to my SLF4J wrapper plugin, now I get: SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [bundleresource://4.fwk1183888521/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [bundleresource://4.fwk1183888521:1/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.SimpleLoggerFactory] Still no log messages are written. Thanks in advance for any help Regards, Arne

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logback - after a particular time, the logs have been stopped writing - apache karaf
by Srikanth Hugar 11 Jun '15

11 Jun '15

I am facing one strange issue and not able to find the solution. Issue is logs are not written when testing with high performance. I am using logback - syslog in apache karaf container. In normal scenario, everything works fine, but when i change the log level to debug and try to do some performance tests, logs write is stopped at some point and it never writes. The issue is happening because of the logging framework. We are using Syslog logging framework, which actually writes the logs to the socket and later that would write to a file. In this particular scenario, after a particular time, the logs have been stopped writing but can see that there are sockets open which are waiting to write the logs to the file. Any solution or pointers to resolve the issue would be very helpful. *O/P of netstat -p command showed 151 connections in CLOSE_WAIT state: * ........................................................................................................ tcp 1 0 172.30.2.144:39830 172.30.2.144:pcsync-https CLOSE_WAIT 3513/java tcp 1 0 172.30.2.144:39965 172.30.2.144:pcsync-https CLOSE_WAIT 3513/java tcp 1 0 172.30.2.144:42245 172.30.2.144:pcsync-https CLOSE_WAIT 3513/java tcp 1 0 172.30.2.144:42416 172.30.2.144:pcsync-https CLOSE_WAIT 3513/java tcp 0 0 localhost:41277 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:44855 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:41891 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:43136 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:42733 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:41580 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:44162 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:45270 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:43482 localhost:pcsync-https CLOSE_WAIT 3640/java tcp 0 0 localhost:43192 localhost:pcsync-https CLOSE_WAIT 3640/java .................................................................................................................. *logback.xml* <configuration> ........................................................ <appender name="karaf" class="ch.qos.logback.classic.net.SyslogAppender"> <facility>LOCAL1</facility> <syslogHost>localhost</syslogHost> <suffixPattern>karaf: [%thread] %logger{36} - %msg%n</suffixPattern> </appender> <appender name="shared" class="ch.qos.logback.classic.net.SyslogAppender"> <facility>LOCAL1</facility> <syslogHost>localhost</syslogHost> <suffixPattern>shared: [%thread] %logger{36} - %msg%n</suffixPattern> </appender> <appender name="css2" class="ch.qos.logback.classic.net.SyslogAppender"> <facility>LOCAL1</facility> <syslogHost>localhost</syslogHost> <suffixPattern>css2: [%thread] %logger{36} - %msg%n</suffixPattern> </appender> ...................................................... </configuration>

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logback-access %b pattern output is weird
by 박상욱 04 Jun '15

04 Jun '15

Hi everyone :) I use logback-access instead of tomcat default valve. Using logback version is 1.1.3. I use logback-core-1.1.3.jar, logback-classic-1.1.3.jar. When use logback-access-1.1.3 at the same time, tomcat puts error. :( %b pattern output is so weird. First, i use class "ch.qos.logback.access.tomcat.LogbackValve" Pattern is this. [%t]\t%U\t%s\t%D\t%b Second, i use class "org.apache.catalina.valves.AccessLogValve" Pattern is this. %t&#9;%U&#9;%s&#9;%D&#9;%b I think they are same. So, try using same time. But "%b" pattern output was different. This is example. First, Logback. [02/Jun/2015:20:12:28 +0900] /test/testLayout.css 200 366 - Second, Tomcat valve. [02/Jun/2015:20:12:28 +0900] /test/testLayout.css 200 367 2769 Logback's output is "-" but Tomcat is "2769" I think Tomcat valve's value is correct. Why they are different? Please tell your advice. Best regards, Aristein.

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Trouble with varargs output
by Arne.Adams＠t-online.de 04 Jun '15

04 Jun '15

Hi all, I am trying to use logback 1.1.3 with slf4j 1.7.12. This is my log statement: logger.debug("%s %d, %d", "a", 1, 2); The logger is a static constant: private static final Logger logger = LoggerFactory.getLogger(TTSGrammarTest.class); The output of the log statement is: 02:35:16.415 [main] DEBUG test.TTSGrammarTest - %s %d, %d Apparently, the format string and the supplied parameters are not evaluated correctly. I don't have any logging configuration - the program is run under eclipse. Thanks in advance for any help, Arne

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