We have older java code which was using log4j 1.17 and application logs were writing to log file properly. As part of vulnerability fixing we have to migrate to log4j 2.17.2 (Mandatory as part of compliance). We have followed the migration plan as per the Apache blog- https://logging.apache.org/log4j/2.x/manual/migration.html
So, now we have added the reference of log4j-1.2-api-2.17.2.jar, log4j-api-2.17.2.jar and log4j-core-2.17.2.jar files instead of log4j-1.17.
But, with log4j-2.17, no logs are populating in the log file....though application is running and functionalities also working....but no logs in the log file.
As soon as we refer the log4j-1.17, log files are starts populating. I am not able to figure out what is going wrong here.
Below is how the logger was instantiated in old code-
static Logger log = Logger.getLogger(SendApproverDetails.class);
Log4j.Properites files details-
Updated the log4j.properites file with
#PiotrP.Karwasz suggestion. Still no luck-
Related
I have recently come across this line of code and i read that root logger is for system generated code
log4j.rootLogger=debug,file
where as
log4j.logger.devpinoyLogger=DEBUG, dest1
this for application logs, this will help log information generated by manual code.
Can you please explain the difference between application logs and system generated logs
I hope that you know how logs are configured for log4j. If not then open this link and follow the How log4j is configured?
Now coming back to your question that what is the difference between APPLICATION LOGS and SYSTEM GENERATED LOGS.
Application Logs:
The application log is a tool that collects messages, exceptions & errors from an application. This information is organized and displayed in a log
System Logs:
The system logs for every important action like system errors, warnings, user locks, & process message etc. in the system log
Difference:
Application logging records the progress of the execution of an application, whereas the system log record system events.
I hope this answers your question.
My application is using Spring to handle the interaction with database (Sql Server)
And commons-logging-1.1.1.jar, log4j-1.2.17.jar, slf4j-api-1.6.3.jar and slf4j-log4j12-1.7.6.jar are put into build path for the logging framework of the application.
The last two logging jar (slf4j-api and slf4j-log4j12) are for another component inside the application to use log4j.
Here is my questions:
When Spring-Jdbc runtime excecption happens, the exception is only showed in the console of eclipse with the font color red. The exception is NOT logged into the log file. But the normal log (like log.info(...)) are all in the log file. Why can't the run-time exception be in the log file and how to solve this problem.
When I use SimpleJdbcCall to call the stored procedure with parameters in MapSqlParameterSource, the following log shows up:
14:43:30 [INFO ] Added default SqlReturnUpdateCount parameter named #update-count-1
14:43:30 [INFO ] Added default SqlReturnUpdateCount parameter named #update-count-1
......
It's really annoying because the number of this message is so large. I want to turn off this particular log message without affecting another logging with the same level (INFO)
And my log4j.xml is fine I think because the logging are basically fine except the above issues.
Spring is using commons-logging internally that's why you can see the messages in your eclipse console. To redirect commons-logging to slf4j/log4j you need to remove commons-logging-1.1.1.jar from your classpath and add jcl-over-slf4j.jar from your slf4j version. To get rid of the dublicate red eclipse messages (jul and jcl) you can set the logging level in logging.properties for the console handler to warning:
java.util.logging.ConsoleHandler.level = WARNING
Second issue was solved here.
I have an application which is configured on IBM WebSphere 6.0 version.
In that application, where ever the System.out.printlN() Statements, are there
Where do they get printed?
I mean which log files, will get it printed?
In standalone I can check in the console, that application is deployed in windows server box
How to Identify where all the log.debug, log.info statements get printed from the application into the server box.
I tried checking in log4j.properties, but didnot find any useful info about that.
Background, we have a Websphere app server, where we have configured 2 Nodes and I am deploying in the Node 01, on my changes and trying to debug, but no help.
Please guide if any one has past exp on it.
I haven't been using WebSphere 6 lately. I newer versions you have a profile directory and a log directory within where the log file reside.
The second option is to go into the WAS administration console and go to "Troubleshooting > Logs and Trace > server_name " there you can directly view the logs. This way is documented for WAS 6.0 as well.
As others have hinted, by default the SystemOut.log and SystemErr.log files are located in each node's profiles/<profileName>/<serverName>/logs directory. (These locations and file names can be overridden in the Administration Console.)
log4j logs will depend on the appenders in your log4j configuration (could be a log4j.properties or a log4j.xml file), but might also be affected by whether anything in your application uses Jakarta Commons Logging. If it does, you may find all log4j logging also going to SystemOut.log.
It should get logged in Program files/IBM/SDP/profiles/runtimes/baseV6...
something like this .currently am at home and I don't have exact path.But search in profile directory .
You should always define your own path for appenders in your applications logging.xml instead of using default path of WAS.
The log files are resided at C:\Program Files\IBM\SDP\runtimes\base_v7\profiles\was70profile1\logs\server1
I am logging issues at my application like that:
private static Logger logger = LoggerFactory.getLogger(Student.class);
...
logger.info(msg);
logger.debug(another_msg);
I use Java and Spring framework running on Apache Tomcat 6 and slf4j for logging. When I debug my application on Intellij IDEA I see two tabs: Server and Tomcat Log. That logs are seen at Server tab. Under tomcat folder there is no file that records that logs. However I want to see it at file end if I can I want to change the log level(debug, info etc.) to see the logs.
How can I do it?
Search for the log4j.properties file in your application.
In the log4j.properties you specify the path for the log file.
See here
sl4j is not complete logging implementation, it is a facade to which we can couple other frameworks like log4j, java.util.logging, commons etc. so identify your logging framework and check the corresponding doc for the configuration file.FOr log4j it will be log4j.properties
I'm parsing gigantic Tomcat log files and I was wondering: when you stop, redeploy and then restart a Webapp, do the logs get automatically appended to the last debug.log.
More specifically: can you see in a unique debug.log file logs coming from two different deployments of a same .war?
So, for example, can you have logs from up to 11am from, say, version 1.0 of, say, example.war and then logs from 1pm coming from, say, version 1.1 of example.war in the same debug.log? Is this depending on the logger used and the way it is configured?
Tomcat will debug every error in the same log file, it doesnt matter if there is two different war files. Try using log4j (http://tomcat.apache.org/tomcat-5.5-doc/logging.html) it allows you to separate everything into different log files.