Questions tagged [appender]

An appender is a metaphor for an "output channel" in logging systems.

Commonly used in log4j/log4net and other inspired logging systems, appenders represent output channels such as files, databases or console. A logger can have various appenders associated with it, and every log messages written via this logger will be written to all associated output channels.

336 questions
5
votes
1 answer

How can I create Log4j 2 appender connected with jTextPane?

I'm currently trying to make Log4j 2 log into a JTextPane. It should act like a STDERR or STDOUT in Netbeans IDE console (incl. text style - color). I know that I need to create an appender and connect it with JTextPane, however I don't know how do…
marty
  • 55
  • 1
  • 6
5
votes
3 answers

Can two log4j fileappenders write to the same file?

Forget for a second the question of why on earth would you do such a thing - if, for whatever reason, two FileAppenders are configured with the same file - will this setup work?
ripper234
  • 222,824
  • 274
  • 634
  • 905
5
votes
1 answer

socket appenders - basic example step by step

Could you recommend simple tutorial about using log4j in distributed system, especially about SocketAppender? I tried to find some basic examples, but I failed.
alicjasalamon
  • 4,171
  • 15
  • 41
  • 65
4
votes
1 answer

redirecting Hibernate Error out of my SystemOut.log file

I have a little issue with my hibernate logging configuration. In our application, we have two threads trying to put, concurrently, a lock on each row of Database table. sometimes, one of those threads tries to lock a row that's already…
twopheek
  • 1,035
  • 2
  • 8
  • 10
4
votes
3 answers

How link log from Logback in Swing application?

I have to add a panel to an application, this panel will log the errors of the application. I have create a class wich extends AppenderBase and i have configure the xml file to use this class. So when i log somehting in the application, the…
Shoxolat
  • 97
  • 2
  • 9
4
votes
1 answer

Restarting a log4net memory appender after calling Shutdown()

My application uses several appenders -- a FileAppender, MemoryAppender, and AdoNetAppender. I have a command to reset the log so that a new file gets created on demand. This works great -- I simply call…
Dave
  • 14,618
  • 13
  • 91
  • 145
4
votes
1 answer

How to configure WriterAppender in log4j2 xml?

I am trying to use StringWriter as Target for WriterAppender. Once I have my logs written to StringWriter, I want to send these logs as response of my method. My current log4j2.xml -
4
votes
7 answers

Editing Log4Net messages before they reach the appenders

I have a security tool that sends users their new password through email. The production email module (that I don’t own and don’t want to change) will log the entire html email message body using Log4Net when the threshold is VERBOSE. Since the…
ErnieL
  • 5,773
  • 1
  • 23
  • 27
4
votes
2 answers

Reset Logback Appender

I have a question regarding Logback. Short version If the creation of an appender fails (for example permission denied), how do I explicitly re-attempt to create it when the problems with the permissions are resolved. I am using XML configuration. I…
MartinCz
  • 528
  • 4
  • 13
4
votes
1 answer

How to log this exception if log4net appender fails to write in database?

I am using Log4Net API in my application to log any important event or information as well as logging my exceptions in database. There might be an exception while using Log4Net API; if it fails to perform logging into database then how will this…
Basmah
  • 829
  • 3
  • 13
  • 25
4
votes
2 answers

logback configuration doesn't work for spring

I have the following the logback.xml file %-4relative [%thread] %-5level %logger{35} - %msg %n
gstackoverflow
  • 36,709
  • 117
  • 359
  • 710
4
votes
1 answer

How to write custom web service appender using log4j2?

I have tried to write a custom appender using log4j2.its working fine its print a logs in console. But I want to write a custom webservice appender using log4j2. this is my custom appender class. @Plugin(name = "MyCustomAppender", category = "Core",…
madhu
  • 1,083
  • 3
  • 12
  • 31
4
votes
2 answers

Accessing session user in config.groovy inside log4j appenders

I have configured log4j appenders in my application to send mails in case of any exception. Code looks like this in Config.groovy : log4j = { appenders { String currentUrl = grails.serverURL String currentEnv = 'Production' if…
Charu Jain
  • 852
  • 1
  • 7
  • 18
4
votes
1 answer

Disable custom logger print in console (Log4j2)

Can we dsable log print for some customm creating Logger? I have two loggers: Root logger Metrics Logger (which prints into file)
slisnychyi
  • 1,832
  • 3
  • 25
  • 32
4
votes
2 answers

Under Spring Framework: WARN: WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader)

I have spent all day trying to solve the logging problem I'm having with log4j in a webapp. No matter what I do, I cannot get rid of the following: log4j:WARN No appenders could be found for logger…
Eric T.
  • 65
  • 1
  • 1
  • 4