log4j Appender-Sends the LOG4J log content to the agent's source

The project uses log4j print content to transfer to flume

1, Flume end

The agent configuration for Flume is as follows:

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a1.sources=s1a1.sinks=k1a1.channels=c1a1.sources.s1.channels=c1a1.sinks.k1.channel=c1 a1.sources.s1.type=avroa1.sources.s1.bind=vm1a1.sources.s1.port=41414 a1.sinks.k1.type=loggera1.channels.c1.type=memorya1.channels.c1.capacity=1000a1.channels.c1.transactionCapacity=100

Start the agent

1	flume-ng agent --conf conf/ --conf-fileconf/a1.conf --name a1 -Dflume.root.logger=INFO,console

2. Java Client

Log4j.properties

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log4j.rootLogger=INFO,flumelog4j.appender.flume = org.apache.flume.clients.log4jappender.Log4jAppenderlog4j.appender.flume.Hostname = 192.168.1.111log4j.appender.flume.Port = 41414log4j.appender.flume.UnsafeMode = true

The Java test code is as follows:

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package com.test.flume;import org.apache.log4j.Logger;public class Log4jAppenderTest {    public static void main(String[] args) {        Logger logger = Logger.getLogger(Log4jAppenderTest.class);        logger.info("test successful");        logger.error("error");        System.out.println("ok");    }}

Add:

1, load-balanced log4j Appender

To modify the configuration of the log4j:

123	log4j.rootLogger=INFO,flumelog4j.appender.flume = org.apache.flume.clients.log4jappender.LoadBalancingLog4jAppenderlog4j.appender.flume.Hosts = 192.168.1.111:41414 192.168.1.111:41414

Different hosts are separated by spaces

2, log4j Appender can also use layout, as follows:

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log4j.rootlogger=info, Console,flume  log4j.appender.flume = Org.apache.flume.clients.log4jappender.Log4jAppender Log4j.appender.flume.Hostname = 192.168.1.111 log4j.appender.flume.port = 41414 log4j.appender.flume.unsafemode = True Log4j.appender.flume.layout=org.apache.log4j.patternlayout Log4j.appender.flume.layout.conversionpattern=%-d{yyyy-mm-dd hh:mm:ss,sss} [%c]-[%p]%m%n  log4j.appender.console=org.apache.log4j.consoleappender Log4j.appender.console.layout=org.apache.log4j.patternlayout Log4j.appender.console.layout.conversionpattern=%-d{yyyy-mm-dd hh:mm:ss,sss} [%c]-[%p]%m%n

From for notes (Wiz)

log4j Appender-Sends the LOG4J log content to the agent's source