My console appender in Log4J writes to server.log as well as to console. How I make it write only to console?
Currently it is :
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d %-5p %M (%C{1}:%L) – %m%n" />
</layout>
</appender>
Most probably it is not so. Your console appender writes only to console, but you have defined some file appender somewhere. Keep in mind, that this appender could be defined in any ancestor of a class where logging occur, including rootLogger, and it is possible to have several appenders for any element. If so, logging will occur also to this file appender.
Another possibility is to check that application and you use the same log4j configuration file. Sometimes log4j could use other configuration file than you thing of.
Related
I want to change the appender pattern for the log4J logging so that the exported files end with a .log extension rather than.log.[Date] as its easier to get windows to open the file. e.g.
I want files named like this
name.log
name.2016-01-26.log
name.2016-01-27.log
Instead of this
name.log
name.log.2016-01-26
name.log.2016-01-27
Current configuration for the appender
<log4j:configuration>
<appender name="rollingfile" class="org.apache.log4j.DailyRollingFileAppender">
<param name="File" value="../logs/name.log"/>
<param name="DatePattern" value="'.'yyyy-MM-dd"/>
<param name="Append" value="true"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="[%d] %-5p [%t] %c{1} - %m%n"/>
</layout>
</appender>
Not sure which version of log4j you are using. Anyway regardless which version, you can always write your own Appender that extends the original one.
Take this as an example, you will see it always append the date to the end of the filename. What you can do is to extend the original class and overwrite its activateOptions method.
Alternatively, you can specify the DatePattern as '.'yyyy-MM-dd'.log'. However in this way your rolling log filename will be something like "name.log.2016-01-27.log".
I am sure that this question is answered multiple times. But somehow, it's not working for me.
My appender is something like this.
<appender name="myAppender" class="org.apache.log4j.DailyRollingFileAppender">
<param name="Threshold" value="DEBUG"/>
<param name="File" value="D:\\out\\MyApp_${output}.log"/>
<param name="DatePattern" value="'.'yyyy-MM-dd"/>
<param name="Append" value="true"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{DATE} %5p %C{1}:%L - %m%n"/>
</layout>
</appender>
I am setting the system property before creating the logger.
System.setProperty("output", "abc");
Then, I am creating the logger like this.
logger = Logger.getLogger("myAppender");
But the output file is generated only like this.
MyApp_.log
Am I missing something? Thanks in advance.
Did you try -Doutput=abc during the startup?
Here is another thread with similar problem that may help you.
How to give environmental variable path for file appender in configuration file in log4j
I have setup TimeBasedRollingPolicy to rollout the file every minute (for test purpose) and the problem I am facing is a warning and no zip or gz file is being created. Warning is:
log4j:WARN Failure in post-close rollover action
I attached the source to figure-out the problem but have no success yet. Am I missing any configuration in my log4j.xml?
<appender name="errorAppender" class="org.apache.log4j.rolling.RollingFileAppender">
<param name="File" value="C:/error.log"/>
<param name="Append" value="true"/>
<param name="BufferedIO" value="true"/>
<rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
<param name="FileNamePattern" value="C:/error.%d{ddMMMyyyy HH:mm:ss}.log.gz" />
<param name="ActiveFileName" value="C:/error.log"/>
</rollingPolicy>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%t] %-5p %C (line:%L) - %m%n"/>
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMax" value="error"/>
<param name="LevelMin" value="error"/>
<param name="AcceptOnMatch" value="true"/>
</filter>
</appender>
I am using log4j-1.2.17 and apache-log4j-extras-1.1. Has anybody seen this problem or have any clue about it?
Problem with "log4j:WARN Failure in post-close rollover action" message is that in windows-based systems you can not create a file name with the ":" char, so the FileNamePattern specified should not contain any one of these: \, /, :, *, ?, ", <, >, |
Here it is a log4j.xml for my application that works fine using a rolling file appender. For testing purposes I made the rolling to create a new file every second:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="consola" class="org.apache.log4j.ConsoleAppender">
<param name="target" value="System.out"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="conversionPattern" value="[%d{yyyyMMdd HH:mm:ss:mm,SSS}]%-5p [%t] [%c{1}-%M:%L] - %m%n"/>
</layout>
</appender>
<appender name="desarr" class="org.apache.log4j.rolling.RollingFileAppender">
<param name="Append" value="false"/>
<rollingPolicy name="desarr" class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
<param name="fileNamePattern" value="C:/workspace/Probador/log/backups/importacion222.log_%d{mmss_mm}"/>
<param name="activeFileName" value="C:/workspace/Probador/log/importacion222.log"/>
</rollingPolicy>
<layout class="org.apache.log4j.PatternLayout">
<param name="conversionPattern" value="[%d{yyyyMMdd HH:mm:ss:mm,SSS}]%-5p [%t] [%c{1}-%M] - %m%n"/>
</layout>
</appender>
<root>
<priority value ="debug" />
<appender-ref ref="consola" />
<appender-ref ref="desarr"/>
</root>
</log4j:configuration>
Special attention to:
<param name="fileNamePattern" value="C:/workspace/Probador/log/backups/importacion222.log_%d{mmss_mm}"/>
Try this before attempting to zip the file.
I hit the same issue in log4j with WARN message - "log4j:WARN Failure in post-close rollover action" and the log file was not rolling over. It was root caused to insufficient permission issue on the directory into which log file was getting written. In this case, Java's File.renameTo() method was failing silently (just returns a boolean false). Took lot of time to figure out the issue :(
I am using log4j-1.2.17 and apache-log4j-extras-1.1. Has anybody seen
this problem and have any clue about it?
I have also observed this problem using log4j-1.2.16 and apache-log4j-extras-1.1. The exact same message.
I have tried various tweaks to no avail. The only time when rollingPolicy->FileNamePattern seems to be observed is when it is used without the appender->File parameter and rollingPolicy->ActiveFileName parameter. But even still I have not seen it rollover successfully nor gz or zip previous files.
I also get the same messages:
log4j: setFile called: somepath/somefile.log, true
log4j: setFile ended
log4j:WARN Failure in post-close rollover action
Very frustrating.
For me the solution was to create manually the directory for archived files.
I Also had the same problem,but in my case it was because of the fact that the 'fileNamePattern' path folder did not exist. Rectifying that worked for me and the rollover files were being created then.
If you are using the org.apache.log4j.rolling.TimeBasedRollingPolicy rollingPolicy, then the directory must exist prior to log4j being able to rotate.
For example, the following rollover will only work if /var/log/blah/archive/YYYY/MM directory exists; create it in a nightly cronjob should do the trick. And, as mentioned previously, this will also occur when there is not enough permission to create the log file.
<appender name="infoFile"
class="org.apache.log4j.rolling.RollingFileAppender">
<param name="threshold"
value="INFO"/>
<param name="append"
value="true"/>
<rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
<param name="ActiveFileName"
value="/var/log/blah/file.log"/>
<!-- IMPORTANT the archive folder must already exist, or log4j cannot
put the rotated log there, and will keep using the old one -->
<param name="FileNamePattern"
value="/var/log/blah/archive/%d{yyyy}/%d{MM}/file.log.%d{yyyy-MM-dd}.gz"/>
</rollingPolicy>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern"
value="%5p | %-40c{2} | %-4L | %d{yyyy-MM-dd}T%d{HH:mm:ss} | %m%n"/>
</layout>
</appender>
I used log4j to log some steps in my application. To be quick and dirty, I used:
org.apache.log4j.BasicConfigurator.configure();
This output my logs in the Eclipse console.
I want to know if and how to set the level threshold higher than DEBUG? In other word, I do not want to display DEBUG level message, just ERR, WARN, INFO.
Thank you.
EDIT:
May I use this following?
import org.apache.log4j.Logger;
import org.apache.log4j.Level;
[...]
Logger logger = Logger.getLogger(this.class);
logger.setLevel(Level.INFO);
I think the simplest way would be:
Logger.getRootLogger().setLevel(Level.INFO);
org.apache.log4j.Logger.getRootLogger().setLevel(org.apache.log4j.Level.INFO);
Assuming you are calling BasicConfigurator.configure() before any loggers are called:
You can use either of these config files to change it without recompiling:
log4j.properties
log4j.rootLogger=INFO
log4j.xml:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<root>
<priority value="INFO"/>
</root>
</log4j:configuration>
One of these must be on command line.
1) Find your appender, you sould have something like this in your log4j.xml configuration file.
<appender name="DEBUG" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="C:/logs/rmDebug.log"/>
<param name="Append" value="true"/>
<param name="MaxFileSize" value="1500KB"/>
<param name="MaxBackupIndex" value="2"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="**FOOBAR** %d{dd.MM.yyyy HH:mm:ss} %c %m%n"/>
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMin" value="DEBUG" />
<param name="LevelMax" value="FATAL" />
</filter>
</appender>
You see levelMin and LevelMax value ? levelMin is where you begin to log, and levelMax, where you stop to log. ( with this specific appender ). You can have several appender.
Then for assign this appender to a class or package. You can do something like that :
<category name="com.foobar.automation.doremiResourceManager" additivity="true">
<appender-ref ref="DEBUG"/>
</category>
If you are not configuring inside the properties file, use this:
Logger root = Logger.getRootLogger();
root.setLevel(Level.INFO);
root.addAppender(new ConsoleAppender(
new PatternLayout(PatternLayout.TTCC_CONVERSION_PATTERN)));
What BasicConfigurator.configure() do is adding root logger to a ConsoleAppender and set the appender layout to a PatternLayout with the pattern "%r [%t] %-5p %c - %m%n". So you need to set the root logger's level. If you only set the level of the logger of this class, the level of root logger is unchanged, then all the other loggers(except this class's) may still use root logger's level, so you will still see the unwanted logs.
See http://logging.apache.org/log4j/1.2/manual.html.
I have an application for which log4j logging is configured in a log4j.properties file. Currently, this application runs on UNIX and creates a log file in /tmp. This application needs to run on Windows, and on that platform I would like for it to select the correct temporary directory, which I believe is C:\temp.
How can I change my log4j.properties file to make this happen? Do I need to switch to using an XML configuration file?
I think you would just use ${java.io.tmpdir} in place of a hard-coded path.
As of Log4J v1.2.14, I was able to use this in both a log4j.xml file as well as a log4j.properties file. There was some discussion on the web that variables wouldn't parse in the DOMReader, but they do as of this version of log4j.
<appender name="rolling_file_appender_ourapp" class="org.apache.log4j.RollingFileAppender">
<param name="File" value="${user.home}/.mycompany/OurApp.log" />
<param name="Append" value="false" />
<param name="MaxFileSize" value="10MB" />
<param name="MaxBackupIndex" value="3" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d | %-5p | %c | %m | %t | %x %n" />
</layout>
</appender>
or
log4j.appender.rfile=org.apache.log4j.FileAppender
log4j.appender.rfile.layout=org.apache.log4j.PatternLayout
log4j.appender.rfile.Append=false
log4j.appender.rfile.layout.ConversionPattern=%d [%p] %c %m%n
log4j.appender.rfile.File=${user.home}/.mycompany/OurApp.log