If you are going to update, go for the latest.
On 16.01.2018 05:13, Debraj Manna wrote:
Thanks Ceki.
Ok I am using slf4j-api 1.7.5. Even after initialization I am not seeing
the logging events being logged while using that logger. I will update
to the slf4j 1.7.15 and post back with the results.
On Tue, Jan 16, 2018 at 2:51 AM, Ceki <c...@qos.ch <mailto:c...@qos.ch>>
wrote:
As of SLF4J 1.7.15, slf4j-api stores and replays events that were
created during the initialization phase. In previous versions, these
events were lost. However, logging events occurring after
initialization should work fine in all versions.
I suggest upgrading slf4j-api to 1.7.25.
On 15.01.2018 20:14, Debraj Manna wrote:
---------- Forwarded message ----------
From: *Debraj Manna* <subharaj.ma...@gmail.com
<mailto:subharaj.ma...@gmail.com>
<mailto:subharaj.ma...@gmail.com <mailto:subharaj.ma...@gmail.com>>>
Date: Tue, Jan 16, 2018 at 12:30 AM
Subject: SLF4J Warning - Loggers will not work as they were
created during initialization phase
To: slf4j-user@qos.ch <mailto:slf4j-user@qos.ch>
<mailto:slf4j-user@qos.ch <mailto:slf4j-user@qos.ch>>
Cross-posting from stackoverflow
<https://stackoverflow.com/questions/48268724/slf4j-warning-loggers-will-not-work-as-they-were-created-during-initialization
<https://stackoverflow.com/questions/48268724/slf4j-warning-loggers-will-not-work-as-they-were-created-during-initialization>>
I am using slf4j with logback in a dropwizard application.
During the application initialization I am seeing logs like below
|SLF4J:Thefollowing loggers will not work because they were
created SLF4J:during the defaultconfiguration phase of the
underlying logging system.SLF4J:Seealso
http://www.slf4j.org/codes.html#substituteLogger
<http://www.slf4j.org/codes.html#substituteLogger>
<http://www.slf4j.org/codes.html#substituteLogger
<http://www.slf4j.org/codes.html#substituteLogger>>SLF4J:com.vnera.healthandmetrics.VneraMetrics|
I am using |logback.xml| with my dropwizard application. My code
flow looks like below
|publicclassVneraMetrics{privatestaticfinalLoggerlogger
=LoggerFactory.getLogger(VneraMetrics.class);...// This method
is getting called from Service.run() during the dropwizard
application initializationpublicStringgetSomeValue(){// logger
is not accessed from this functionreturn"Some initialized
value";}}publicclassServiceextendsApplication<Conf>{publicstaticfinalLoggerlogger
=LoggerFactory.getLogger(Service.class);publicstaticvoidmain(Stringargs[]){logger.info
<http://logger.info>("Some logs");Serviceservice
=newService();service.run(dropWizardArgs);Utils.reloadLogger();}}|
|Utils.reloadLogger()| is loading the loggback configuration as
discussed here
|publicstaticvoidreloadLogger(){StringloggingConfig
=System.getProperty("logback.configurationFile");if(loggingConfig
==null){System.out.println("Logging
Config is null");}LoggerContextloggerContext
=(LoggerContext)LoggerFactory.getILoggerFactory();loggerContext.reset();JoranConfiguratorconfigurator
=newJoranConfigurator();try{InputStreamconfigStream
=FileUtils.openInputStream(newFile(loggingConfig));configurator.setContext(loggerContext);configurator.doConfigure(configStream);//
loads logback
fileconfigStream.close();System.out.println("Loaded
configuration
file");}catch(JoranException|IOExceptione){e.printStackTrace();System.out.println("Failed
to log configuration file");System.exit(1);}}}|
*Versions*
* Logback - 1.2.3
* Dropwizard - 1.0.2
Can some one let me know what does the SLF4J warning denotes? I
have seen the substituteLogger
<http://www.slf4j.org/codes.html#substituteLogger
<http://www.slf4j.org/codes.html#substituteLogger>> page but
this does not mention how can I get around this? On trying to
use logger in |VneraMetrics| it is not printing anything.
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