Log4J Appender
项目中使用log4j打印的内容同时传输到flume1、flume端
flume的agent配置内容如下：
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a1.sources=s1
a1.sinks=k1
a1.channels=c1
a1.sources.s1.channels=c1
a1.sinks.k1.channel=c1
a1.sources.s1.type=avro
a1.sources.s1.bind=vm1
a1.sources.s1.port=41414
a1.sinks.k1.type=logger
a1.channels.c1.type=memory
a1.channels.c1.capacity=1000
a1.channels.c1.transactionCapacity=100 启动这个agent
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flume-ng agent --conf conf/ --conf-file conf/a1.conf --name a1 -Dflume.root.logger=INFO,console 2、java客户端
log4j.properties
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log4j.rootLogger=INFO,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 java测试代码如下：
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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");
}
} 补充：
1、负载均衡的Log4J Appender
修改log4j的配置即可：
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log4j.rootLogger=INFO,flume
log4j.appender.flume = org.apache.flume.clients.log4jappender.LoadBalancingLog4jAppender
log4j.appender.flume.Hosts = 192.168.1.111:41414 192.168.1.111:41414 不同的host用空格分隔
2、Log4J Appender也可以使用layout，如下：
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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
来自为知笔记(Wiz)
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