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Questions tagged [fileappender]

log4j FileAppender appends log events to a file.

is a popular Java-based logging utility.

log4j FileAppender appends log events to a file. More details at: https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/FileAppender.html

78 questions
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Log4j and Logback FileAppender maxFileSize and maxBackupIndex

I need to control the maximum amount of disk space for my logging framework. For instance, in log4j, I can easily estimate how much disk space I need if I have an appender like this:
joao cenoura
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Make log4j DailyRollingFileAppender roll over date OR size, whichever comes first

I know that log4j provides RollingFileAppender and DailyRollingFileAppender classes, however, DailyRollingFileAppender does not support MaxFileSize property. How do I tweak the behavior of log4j so that it can log in a way like this: the rolling…
Jim Raynor
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Logback I want File do not create when the appender is never used. [RollingFileAppender]

I'm creating a logback-common config file for my applis. I'm defining a RollingFileAppender in it, that for all my applis generates the same log format in a file (if we need it). Sometimes I want to use this appender, and sometimes not (when we test…
Marcel kobain
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logback-android FileAppender not creating files

I'm using logback-android in a Kotlin project to generate logs in a file. I previously tested this solution in different Android versions without any issue, but I discovered an issue in Android 5.1: the parent directories to the log file are created…
Ernesto Garcia
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Spring Boot custom logback logger to file only

I've got a pair of custom loggers defined for LogBack in a Spring Boot application. The idea is to send all of that logging to a file, instead of the standard console output provided by Spring Boot by default. What I'm seeing is that the logging…
Dave Hicks
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Log4net sometimes creating two logs, one empty

Using the below configuration, about half of the time, I'm getting two logs per one, one empty. They differ in filename by one second (log.2015-03-09_11-50-25 vs log.2015-03-09_11-50-26) I'm trying to have one log per run of the console…
b15
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How to change the underlying buffer size of BufferedOutputStream used by logback's FileAppender?

We are using logback as our logging framework. We noticed that the FileAppender uses ResilientFileOutputStream which is backed by an BufferedOutputStream. We are wondering if there's a way to configure the buffer size of this BufferedOutputStream…
Tim Shi
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log4j isolating certain level from a class

I want to ask something on log4j. I have this config file for log4j on activemq. My problem is that I want to log all INFO level messages from every class I have, but I want to log all DEBUG level messages from "TransportConnection" class to a…
Anastasios Andronidis
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Databricks Log4J Custom Appender Not Working as expected

I'm trying to figure out how a custom appender should be configured in a Databricks environment but I cannot figure it out. When cluster is running, in driver logs, time is displayed as 'unknown' for my custom log file and when cluster is stopped,…
Costin Chiulan
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logback loading all appenders

I have a logback.xml file with 3 appender in : 1 ConsoleAppender and 2 FileAppender System.out …
ulquiorra
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How do I limit log4j files based on size (only)?

I would like to configure log4j to write only files up to a maximum specified size, e.g. 5MB. When the log file hits 5MB I want it to start writing to a new file. I'd like to put some kind of meaningful timestamp into the logfile name to distinguish…
bacar
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Log4j FileAppender creates empty file

I have problem using log4j with file logging. I can't get it to work even after searching the web for a quite long time now. my log4j.properties file: log4j.rootLogger = DEBUG, FILE log4j.appender.FILE=org.apache.log4j.FileAppender …
Matej Briškár
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how to create new archived log file per hour

I want to write a logback file in java that create a file for whole the microservice and after one hour logs should be transferred in new archived file NOTE : -every one hour logs should be saved in new archived file -no archived file should be…
Sambhav Jain
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Configuring log4j such that any logger statements emmitted at level 'ERROR' are routed to a separate file

To demonstrate my problem, imagine we have a simple app with a top level package com.foo, and subpackages for ui (com.foo.ui) and server (com.foo.server). I have not been able to cook up a log4j properties file which will ensure the following: * all…
Chris Bedford
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unable to write into different logs for different threads using log4j2

I'm trying to write logs into different files for each Thread/ThreadGroup. My code is creating different files for each thread, but it writing all other threads logs into one file. MainTest.java public class MainTest { public static void…
Manoj Kare
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