Log4j Direct output log to Flume

Log4j.properties configuration:


Log4j.rootlogger=info
Log4j.category.com.besttone=info,flume
Log4j.appender.flume = Org.apache.flume.clients.log4jappender.Log4jAppender
Log4j.appender.flume.Hostname = localhost
Log4j.appender.flume.Port = 44444

Log4j.appender.flume.UnsafeMode = True

Need to be/opt/cloudera/parcels/cdh-5.0.0-1.cdh5.0.0.p0.47/lib/flume-ng/tools/ Flume-ng-log4jappender-1.4.0-cdh5.0.0-jar-with-dependencies.jar added to Classpath.

You can then write a simple test class to test:

[Java]View Plaincopy

2. Package com.besttone.flume;
6. Import Java.util.Date;
10. Import Org.apache.commons.logging.Log;
12. Import Org.apache.commons.logging.LogFactory;
16. Public class Writelog {
18. protected static final Log logger = Logfactory.getlog (writelog.   Class);
22. /** 
24. * @param args
26. * @throws interruptedexception
28. */
30. public static void Main (string[] args) throws interruptedexception {
32. //TODO auto-generated method stub
34. While (true) {
36. //Every two seconds log output current system timestamp
38. Logger.info (new Date (). GetTime ());
40. Thread.Sleep (2000);
42. }
44. }
46. }

Then write a run.sh script to run this class:

[Plain]View Plaincopy

1. #!/BIN/BASH  
2. jarlist= ' Ls ./lib/*.jar '   
Li class= "alt" >classpath= './bin/'   
3. for jar in ${jarlist}  
4. DO  
5.    classpath=${classpath}:${jar}  
6. DONE  
7. echo ${classpath}  
8.   
9. java -classpath  "$CLASSPATH"  COM.BESTTONE.FLUME.WRITELOG &  

Execute run.sh, set sink to logger, go to flume log file to see, you can see the log4j log output has been transferred to the flume:


2014-07-16 14:23:54,193 INFO org.apache.flume.sink.LoggerSink:Event: {headers:{flume.client.log4j.log.level=20000, Flume.client.log4j.message.encoding=utf8, Flume.client.log4j.logger.name=com.besttone.flume.writelog, flume.client.log4j.timestamp=1405491834189} body:31 34 30 35 34 39 31 38 33 34 31 38 39 1405491834189}

Log4j Direct output log to Flume