static String EPM_ORACLE_INSTANCE = System.getProperty("EPM_ORACLE_INSTANCE");
static String HFM_CLUSTER = System.getProperty("HFM_CLUSTER");
static String HFM_APPLICATION = System.getProperty("HFM_APPLICATION");
This is a part of my code. It results in
oracle.epm.fm.domainobject.config.ConfigOM load
INFO: The path to the configuration file location is: E:\Hyperion\Oracle\Middleware\user_projects\epmsystem850/config/hfm/configom.properties.
May 19, 2021 5:40:48 AM oracle.epm.fm.domainobject.config.ConfigOM load
WARNING: The system could not find file E:\Hyperion\Oracle\Middleware\user_projects\epmsystem850/config/hfm/configom.properties; using default location instead: /oracle/epm/fm/domainobject/config/configom.properties.
I got my expected task run, but i want to hide the warning lines above. Is there a way to hide it from console window?
You could use
System.setProperty("java.util.logging.Level", Level);
to change the log log level, so here you could set the LEVEL to SEVERE or OFF. And according to the java docs in java.util.logging.Level
The Level class defines a set of standard logging levels that can be
used to control logging output. The logging Level objects are ordered
and are specified by ordered integers. Enabling logging at a given
level also enables logging at all higher levels.
The levels in descending order are:
SEVERE (highest value) >
WARNING >
INFO >
CONFIG >
FINE >
FINER >
FINEST (lowest value)
In addition there is a level OFF that can be used to turn off
logging, and a level ALL that can be used to enable logging of all
messages.
I'm trying to get processable logs of deep issues occurring with a JavaFX WebView.
This configuration (unsurprisingly) gives me masses of events unrelated to my problem:
handlers= java.util.logging.ConsoleHandler
.level= FINEST
java.util.logging.ConsoleHandler.level = FINEST
java.util.logging.ConsoleHandler.formatter = java.util.logging.XMLFormatter
I specifically get many events like this obscuring the real issue I am trying to find:
<record>
<date>2019-02-23T15:05:45</date>
<millis>1550946945429</millis>
<sequence>12936</sequence>
<logger>com.sun.javafx.webkit.prism.WCPathImpl</logger>
<level>FINE</level>
<class>com.sun.javafx.webkit.prism.WCPathImpl</class>
<method>addLineTo</method>
<thread>18</thread>
<message>WCPathImpl(1,361).addLineTo(600,516)</message>
</record>
I tried to suppress logging com.sun.javafx.webkit.prism.WCPathImpl by adding this to logging.properties:
com.sun.javafx.webkit.prism.WCPathImpl = OFF
That didn't work. That logger still logs a firehose of messages I don't need to solve this problem.
I'm trying this to debug okta-aws-cli.
How do I suppress specific loggers in java.util.logging?
The logger name isn't sufficient. You need to specify which property you are changing on the logger, in this case level.
Instead of this broken configuration:
com.sun.javafx.webkit.prism.WCPathImpl = OFF
Use this configuration specifically referencing the level property of the logger:
com.sun.javafx.webkit.prism.WCPathImpl.level = OFF
What is the difference between logger.debug and logger.info ?
When will logger.debug be printed?
I suggest you look at the article called "Short Introduction to log4j". It contains a short explanation of log levels and demonstrates how they can be used in practice. The basic idea of log levels is that you want to be able to configure how much detail the logs contain depending on the situation. For example, if you are trying to troubleshoot an issue, you would want the logs to be very verbose. In production, you might only want to see warnings and errors.
The log level for each component of your system is usually controlled through a parameter in a configuration file, so it's easy to change. Your code would contain various logging statements with different levels. When responding to an Exception, you might call Logger.error. If you want to print the value of a variable at any given point, you might call Logger.debug. This combination of a configurable logging level and logging statements within your program allow you full control over how your application will log its activity.
In the case of log4j at least, the ordering of log levels is:
DEBUG < INFO < WARN < ERROR < FATAL
Here is a short example from that article demonstrating how log levels work.
// get a logger instance named "com.foo"
Logger logger = Logger.getLogger("com.foo");
// Now set its level. Normally you do not need to set the
// level of a logger programmatically. This is usually done
// in configuration files.
logger.setLevel(Level.INFO);
Logger barlogger = Logger.getLogger("com.foo.Bar");
// This request is enabled, because WARN >= INFO.
logger.warn("Low fuel level.");
// This request is disabled, because DEBUG < INFO.
logger.debug("Starting search for nearest gas station.");
// The logger instance barlogger, named "com.foo.Bar",
// will inherit its level from the logger named
// "com.foo" Thus, the following request is enabled
// because INFO >= INFO.
barlogger.info("Located nearest gas station.");
// This request is disabled, because DEBUG < INFO.
barlogger.debug("Exiting gas station search");
This will depend on the logging configuration. The default value will depend on the framework being used. The idea is that later on by changing a configuration setting from INFO to DEBUG you will see a ton of more (or less if the other way around) lines printed without recompiling the whole application.
If you think which one to use then it boils down to thinking what you want to see on which level. For other levels for example in Log4J look at the API, http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html
Just a clarification about the set of all possible levels, that are:
ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF
Basically it depends on how your loggers are configured. Typically you'd have debug output written out during development but turned off in production - or possibly have selected debug categories writing out while debugging a particular area.
The point of having different priorities is to allow you to turn up/down the level of detail on a particular component in a reasonably fine-grained way - and only needing to change the logging configuration (rather than code) to see the difference.
INFO is used to log the information your program is working as expected.
DEBUG is used to find the reason in case your program is not working as expected or an exception has occurred. it's in the interest of the developer.
This is a very old question, but i don't see my understanding here so I will add my 2 cents:
Every level corresponds/maps to a type of user:
debug : developer - manual debugging
trace : automated logging and step tracer - for 3rd level support
info : technician / support level 1 /2
warn : technician / user error : automated alert / support level 1
critical/fatal : depends on your setup - local IT
It depends on which level you selected in your log4j configuration file.
<Loggers>
<Root level="info">
...
If your level is "info" (by default), logger.debug(...) will not be printed in your console.
However, if your level is "debug", it will.
Depending on the criticality level of your code, you should use the most accurate level among the following ones :
ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF
Info Messages are something which we would like to see even if the application is in best of state.
Debug messages are usually something that we would like to see while debugging some problem.
What is the difference between logger.debug and logger.info?
These are only some default level already defined. You can define your own levels if you like.
The purpose of those levels is to enable/disable one or more of them, without making any change in your code.
When logger.debug will be printed ??
When you have enabled the debug or any higher level in your configuration.
Situation: I have this log4j logger:
private static final Logger logger = Logger.getLogger(ThisClassName.class);
And am trying to set it programatically through:
Logger.getLogger(ThisClassName.class).setLevel(Level.DEBUG);
Still, DEBUG level prints are swalloed (while INFO prints are printed successfully).
Even this bit has no effect: Logger.getRootLogger().setLevel(Level.DEBUG);
Calling logger.debug("foo") reaches Category.forcedLog() and ConsoleAppender.doAppend(), and then fails (quits) at:
if(!isAsSevereAsThreshold(event.getLevel()))
Any idea why this is happening?
Your appender is configured with a threshold greater than debug, so while the logger doesn't ignore the entries, your appender doesn't record it. You need to configure the threshold of your ConsoleAppender to be DEBUG as well, either through your config file or programatically:
((ConsoleAppender)someLogger.getAppender("CONSOLE")).setThreshold(Level.DEBUG);
Config files are usually the more elegant solution for this sort of thing.
Edit: Note that apparently, any subclass of AppenderSkeleton (including ConsoleAppender) shouldn't have a threshold filter set by default. So it's likely that somewhere in your configuration you're actually manually assigning a threshold ( > Debug) to that appender, as #justkt hints.
I use log4j for logging and i want to print all logger.debug statements in a particular class / selected package.
i set the cfg as below>
log4j.category.my.pkg=info
log4j.category.my.pkg.ab.class1=debug
but still only info messages are shown..
is this not the right way ?
Instead of using 'category' use 'logger'. Hence, these level are configured for entire log4j, and does not depend on appender, etc.
Following change works:
log4j.logger.my.pkg=info
log4j.logger.my.pkg.ab.class1=debug
Copying from my current log4j.properties:
log4j.logger.org.hibernate.tool.hbm2ddl=warn
log4j.logger.org.hibernate.sql=info