log4j

Log4j not printing complete stack trace

孤人 提交于 2019-12-06 12:13:05
I checked all the answers in the SO . But none really helped me. My Log4j property file log4j.rootLogger=debug,console,file log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=%d %5p [%t] (%F:%L) - %m%n log4j.appender.file=org.apache.log4j.RollingFileAppender log4j.appender.file.File=eseries.log log4j.appender.file.MaxFileSize=1KB log4j.appender.file.layout=org.apache.log4j.EnhancedPatternLayout log4j.appender.file.layout.ConversionPattern=%d %5p [%t] (%F:%L) - %m%n %throwable{short

Way to automatically detect wrong log4j static initialization

对着背影说爱祢 提交于 2019-12-06 12:04:12
(Note that it's more of a Bash question than a Java question, see note below) When configuring log4j in each class, we do the following: public class Example { private static final Logger log = Logger.getLogger( Example.class ); The problem is that we now have a medium-sized codebase (200K LOC) containing a lot of Java classes and... Quite some misconfigured log4j loggers. It's because people (including me, I admit), did silly cut'n'paste resulting sometimes in this: public class Another { private static final Logger log = Logger.getLogger( Example.class ); And boom, instead of having Another

Log4j2 auto rollover after specified duration

我与影子孤独终老i 提交于 2019-12-06 11:04:43
问题 I am using RollingFile appender. I want the log file to be rolled after every 20 minutes irrespective of the logging event. For instance in an hour I should have 3 log files even though there might have not been any logging in that hour. Is this possible using Log4j2? If yes please provide the configuration ( in log4j2.xml) that are required. The below config does not seem to work : <RollingFile name="RECHARGE_NMCD" fileName="D:/rc_nmcd/rc_nmcd.log" append="true" bufferedIO="false"

java: how to set a global thread-ID?

て烟熏妆下的殇ゞ 提交于 2019-12-06 10:51:24
Is there any possibility to set unique ID for a thread? In distributed system where threads are created on many different machines (e.g. by RMI)? I need it to create log messages. From my research I know that it can be done using log4j mdc/ndc, but only in single thread. My problem is that ID has to be set when thread is created (to use the same ID for threads on different JVM but for the same request) I am new to distributed systems. If you want to have a globally unique request id, you can use the prcoessAndName (see below) with a counter and pass this with your message/request and use this

log4j.RollingFileAppender not compressing files

落爺英雄遲暮 提交于 2019-12-06 10:51:05
How to zip backup file in log4j RollingFileAppender I have following log4j.properties file , while exceeding size limit it is creating backup file but not zipping it. log4j.appender.request=org.apache.log4j.RollingFileAppender log4j.appender.request.File=${catalina.home}/webapps/Sample/WEB-INF/logs/FAW_l4j.log log4j.appender.request.MaxFileSize=10KB log4j.appender.request.MaxBackupIndex=3 log4j.appender.request.RollingPolicy.ActiveFileName =${catalina.home}/webapps/Sample/WEB-INF/logs/FAW_l4j.log-%d.log. log4j.appender.request.RollingPolicy.FileNamePattern=${catalina.home}/webapps/Sample/WEB

Failed to instantiate SLF4J LoggerFactory on Spring 'mvc-basic' tutorial

♀尐吖头ヾ 提交于 2019-12-06 10:46:33
I'm trying a Spring 3.x tutorial on Eclipse 3.7 with m2e and Maven Integration for WTP plugins installed. I converted the above tutorial to Maven Project, but when i deploy the web application i get the following exception: Failed to instantiate SLF4J LoggerFactory Reported exception: java.lang.NoClassDefFoundError: org/apache/log4j/Level My pom.xml look like this: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0

log lombok eclipse

大城市里の小女人 提交于 2019-12-06 10:46:10
介绍一个不错的Eclipse插件Lambok,实现自动生成Java代码 介绍一个不错的Eclipse插件Lambok(演示包含了之前网友分享的Log4j)附件中包含了对使用 该插件对Log4j简化的代码,因为不大,所以jar包也存在呢! Lombox是Eclipse的一个插件,用来自动生成Java代码,减少手工输入的代码量。 提供了简单的注解的形式来帮助简化消除一些必须有但显得很臃肿的Java代码。 lombox的官网地址: http://projectlombok.org/ 学习网址: http://www.ibm.com/developerworks/cn/java/j-lombok/ 一、Lombox安装 使用 lombok 是需要安装的,如果不安装,IDE 则无法解析 lombok 注解。 安装方法: 1、双击下载下来的JAR包安装,会自动寻找使用的IDE。 2、使用命令:在lombok.jar存放的目录使用 java -jar lombok.jar安装jar,默认使用eclipse IDE。 3、eclipse/myeclipse手动安装lombok (1)、将lombok.jar复制到 eclipse.ini/myeclipse.ini所在的文件夹目录下; (2)、打开eclipse.ini/myeclipse.ini,在最后面插入以下两行并保存:

java logging : multiple small file vs one big

风格不统一 提交于 2019-12-06 09:25:17
Using log4j on Unix, which Appender would perform the best to write 1000Meg : 1) Using RollingFileAppender writing 10 file of 100 Meg or 2) Using a FileAppender and writing a single 1000Meg file In other words, using java on unix, does the size matter? Thank you There no Java-side performance difference between writing to a small file or writing to a large file. There might be a small difference at the OS level when a file gets big enough that an extra level of index blocks is required (FS dependent), but it is probably not worth worrying about. There will be a performance cost in implementing

Catch RuntimeExceptions in Java application and send them via email

假装没事ソ 提交于 2019-12-06 09:23:27
问题 I'm starting my app on Linux server with a command like this /usr/local/bin/jsvc \ -home /usr/local/jdk1.8.0_111 \ -cp /opt/myapp/myapp.jar:/opt/myapp/lib/* \ -user myappuser \ -outfile /opt/myapp/out.log \ -errfile /opt/myapp/error.log \ -pidfile /opt/myapp/myapp.pid \ com.example.MyApp I'm using log4j for logging in my app and it has own configuration described in log4j.properties which is located inside myapp.jar . I want to be able to catch any exception which happens in the app and to

Log4j in SpringBoot

两盒软妹~` 提交于 2019-12-06 09:21:40
I'm newbie to Spring Boot and working on a simple log4j demo using Spring Boot. I used the gradle project and have spring-boot-starter-web and groovy dependencies. Below is my log4j.properties file content. All I need is , when i execute the main program and use annotation @Log4J i must be able to save the log.perflog to a file in my local (windows). log4j.rootLogger = WARN , stdout, cslLog log4j.logger.perfLog = WARN, perfLog log4j.additivity.perfLog = false log4j.appender.perfLog = org.apache.log4j.RollingFileAppender log4j.appender.perfLog.File = ${GRAILS_HOME}/logs/csl.log log4j.appender