August 2012 - logback-user - mailman3.qos.ch

Problem with Logging in Linux
by Oliver Zemann 28 Aug '12

28 Aug '12

Hi, i have the absolut identical file for Windows which works as expected (logging), but not for linux: http://rifers.org/paste/show/1801 There is just no logging - i started everything as root. Even when i use the FileAppender with its file name property set to "somelog.log" or "/root/somelog.log" it just saves nothing and i have no idea why. I used updatedb && locate to find a file called like this but there was nothing. Also lsof with a grep find nothing opened. So it is really not logging. Regards, Oli

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Re: [logback-user] Logging crossing contexts
by Chris Rompot 25 Aug '12

25 Aug '12

Ceki Gulcu wrote: > > > If my memory serves me correctly, the context selection code has not > changed significantly since 0.9.28. > > How do you perform context selection? Is it JNDI based? Again, what > happens when you revert to logback 0.9.28? > > -- > Ceki > http://tinyurl.com/proLogback > We recently noticed the same problem using logback-classic version 1.0.6. We store our LoggerContexts as values of a static HashMap. I have verified that the keys used to retrieve the appropriate LoggerContext have distinct hash codes. In the example that we noticed, the appropriate context was used on 2012-08-15 11:48:58 - 15:48:07 after which it was no longer used. Log entries that should have gone to it were mixed in with those for a newly created context from 2012-08-15 15:48:28 on. -- View this message in context: http://old.nabble.com/Logging-crossing-contexts-tp34292668p34307440.html Sent from the Logback User mailing list archive at Nabble.com.

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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

3 11

Logging encoded google protocol buffers with logback rolling file appender
by Dave Johnston 24 Aug '12

24 Aug '12

Hi, I'd like to log google protocol buffers received by my server to a file, for later offline processing (the data is in a byte[]). This is something I only do in when a debug mode is enabled, but it is useful for diagnostics. Ideally I'd like to use logback, but it doesn't seem to cater for binary data. I saw this issue: http://jira.qos.ch/browse/LOGBACK-232 which is marked as fix, and is a request for the same thing. But I can't figure out how to use this with a normal rolling file appender. Does anyone have any examples of doing this? Cheers

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logback using a lot of CPU?
by Perryn Fowler 24 Aug '12

24 Aug '12

Hello there We are trying to make our Spring-based web application faster - as part of that we profiled it using JProfiler. Surprisingly we found that a rather large amount of our CPU seems to be being used in logback packages: ch.qos.logback.classic - 21% ch.qos.logback.classic.spi - 13% ch.qos.logback.classic.turbo - 9% We don't actually do much logging - in this run we actually wrote nothing to the logs. (We were at INFO level and no errors or noteworthy events occurred) When we drill down into one particular method, Jprofiler insists that one of our methods is calling ch.qos.logback.classic.Logger.log, but this method does not do any logging and the class does not reference logging at all. Any ideas what we are doing wrong? cheers Pez

1 0

Release of logback version 1.0.7
by ceki 23 Aug '12

23 Aug '12

Hello all, I am happy to announce the release of logback version 1.0.7. It should hit the Maven central repository within the next 2 hours. Please refer to the news page for precise details of this release. http://logback.qos.ch/news.html You can download logback, including full source code, class files and documentation on our download page, shown below. http://logback.qos.ch/download.html 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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Context configuration during webapp loading
by Eric Schwarzenbach 23 Aug '12

23 Aug '12

I'm trying to use variable substitution for my log file names, using the webapp / context name. (My use case is not literally a shared configuration, but two webapps deployed using copies of the same war with different names...so they each have their own logback.xml, though they are identical). I'm using the example on http://logback.qos.ch/faq.html#sharedConfiguration as my basis, and while it is working, my webapp ends up creating two log files. First it creates one called application-name_IS_UNDEFINED.log with some of the first messages logged during startup, and then foo.log (where foo is the app name) with all subsequent messages. So it seems to me that the contextInitialized method of ServletContextListener isn't early enough, and that the default logback config is initializing earlier. This is using Tomcat 7, and Java 7. How can I either hook into the earlier initialization or replace it? Where does that initialization happen? Is that static code? Thanks, Eric

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local bind address for SyslogAppender
by Hofmann, Steffen 23 Aug '12

23 Aug '12

Hello, I have a server with many IP addresses and use ch.qos.logback.classic.net.SyslogAppender to a remote Server behind a firewall. Is it possible to set a local bind address for this appender? Steffen

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ClassCastException: ch.qos.logback.core.BasicStatusManager cannot be cast to ch.qos.logback.core.status.StatusManage
by Eric Schwarzenbach 21 Aug '12

21 Aug '12

I was on the verge of posting a question, but since I've figured it out, will post the answer for the next person who runs into this. When setting up Logback-access under Tomcat (as described here http://logback.qos.ch/access.html) if you make the mistake of putting the logback-access jar in your webapp's lib directory (in addition to putting in tomcat's lib directory as the directions specify), you will get this exception when you try to hit the servlet: java.lang.ClassCastException: ch.qos.logback.core.BasicStatusManager cannot be cast to ch.qos.logback.core.status.StatusManager Cheers, Eric

1 0

Syslog appender
by Math Roy 17 Aug '12

17 Aug '12

I have looked at the documentation several times and not able to do the following. The hostname on my device returns the string "hostname". I see that SyslogConverter returns this string. I want to be able to replace that with the ip+mac address of the machine. Like this: 23:19:23:18:23:45+192.168.1.1 Is there a easy way to do this. Also I looked at changing the suffixPattern to achieve this. How can I change it in java. With xml the pattern is fixed and I cannot put the mac/ip address. Thanks, Roy

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