rollingfileappender

问题 I was wondering if there is a way to enable debug mode programmatically. Since I'm not allowed to use configuration file, I'm currently configure everything programmatically. Recently, I ran into an issue where RollingFileAppender stop writing to file though FileAppender works perfectly fine. In fact, RollingFileAppender was also working last week and nothing that I'm aware of has changed since. Please let me know if there is a way to enable debug since doing it using configuration file

问题 I'm using log4j 2 and RollingFile appender: <RollingFile name="mylog" fileName="mylog.log" filePattern="mylog.log.%d{yyyy-MM-dd}.log"> <PatternLayout> <pattern>[%d] [%-5p] [%-8t] %F:%L %m%n</pattern> </PatternLayout> <Policies> <TimeBasedTriggeringPolicy interval="1"/> </Policies> </RollingFile> The log files do get renamed daily. But the Javadoc of FileRenameAction class indicates there is an option renameEmptyFiles which is false by default so if a day's log is empty it deletes it instead

问题 I want daily logs with the log file appended with the date in yyyy-dd-mm format. When I use DailyRollingFileAppender, a new log file is not created. The logs are written to the same log file. Also, the date Pattern provided is not considered. The log file created is LoggerFile.log. And every content(even on the next day) is written to this file. I am using the log4j-1.2.17 jar. I am developing in Netbeans 7.3.1 in Java. Is there anyone using this JAR and facing such a problem. Please help!

问题 I started to play with log4net today and so far, I really like it. In order to preserve our current logging functionality, the app needs to create a new log file whenever the application is started. The log file name has the date and time stamp encoded in it. Currently, I've got log4net configured via an XmlConfigurator , which works great, except that the filename for my RollingFileAppender is hardcoded in the configuration XML file. I'd like to continue to use the XmlConfigurator , but

问题 is there a solution to make the log files be created each week by RollingFileAppender's datePattern? I know that yyyyMMdd is valid for each day but i couldn't find a solution for weekly logging. thanks in advance. 回答1: As far as I can tell you need to write your own appender for this. The .Net custom format strings do not have anything for getting the calendar week. There is an API for that though: http://msdn.microsoft.com/en-us/library/system.globalization.calendar.getweekofyear%28VS.71%29

问题 Here's my config: <appender name="myAppender" class="ch.qos.logback.core.rolling.RollingFileAppender"> <append>true</append> <file>mylogs.log</file> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <!-- daily rollover --> <fileNamePattern>mylogs-%d{yyyy-MM-dd_HH-mm}.log</fileNamePattern> <!-- keep 30 days' worth of history --> <maxHistory>30</maxHistory> </rollingPolicy> <encoder> <pattern>%d{HH:mm:ss.SSS} %-5level %logger{36} [%thread] - %M:%L - %msg%n</pattern> <

问题 my goal is whenever file mylog.log is rolled to mylog.log.1 this rolled file is also moved to another directory, so in the original directory there is always only mylog.log . Is this possible using RollingFileAppender ? Or another appender from default log4j library? 回答1: I think you mean the RollingFileAppender from Log4J if you use version >= 1.2.16 and the log4j-extras you can use this log4j.rootCategory=INFO, base log4j.appender.base=org.apache.log4j.rolling.RollingFileAppender log4j

问题 I use RollingFileAppender of log4j 1.2.16 , which rolls log files, when they reach a certain size. Now I would like to roll log files daily and when they reach a certain size. Thus there will be one or more log files per day. For example, myapp.log myapp-17.12.2013.log myapp-16.12.2012.log myapp-16.12.2012.1.log myapp-16.12.2012.2.log Is there an off-the-shelf appender, which does it already? 回答1: There are indeed two options: use LogBack with its size and time triggering policy: http:/

问题 I use RollingFileAppender of log4j 1.2.16 , which rolls log files, when they reach a certain size. Now I would like to roll log files daily and when they reach a certain size. Thus there will be one or more log files per day. For example, myapp.log myapp-17.12.2013.log myapp-16.12.2012.log myapp-16.12.2012.1.log myapp-16.12.2012.2.log Is there an off-the-shelf appender, which does it already? 回答1: There are indeed two options: use LogBack with its size and time triggering policy: http:/

问题 The DatePattern string needs to be something that the SimpleDateFormatter will accept. Unfortunately this means that, out of the box, this doesn't include being able to set the boundary to be a week number. There are ways of getting this value in C#, but it's not obvious that we can extend the SimpleDateFormatter or provide a different implementation of IDateFormatter and use that instead (or even in a custom RollingFileAppender ). So how might we get a Log4Net RollingFileAppender to roll