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具体说明 Flume介绍、安装和配置
2022-07-06 10:18:00 【全栈程序员站长】
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本文总结“Hadoop生态系统”中的当中一员——Apache Flume
写在前面二:
所用软件说明:
一、什么是Apache Flume
官网:Flume is a distributed, reliable, and availableservicefor efficientlycollecting, aggregating, and moving large amounts of log data. It has a simple and flexible architecture based on streaming data flows. It is robust and fault tolerant with tunable reliability mechanisms and many failover and recovery mechanisms. It uses a simple extensible data model that allows for online analytic application.
1、flume是一个分布式的日志收集系统,具有高可靠、高可用、事务管理、失败重新启动等功能。数据处理速度快,全然能够用于生产环境。 经常使用的分布式日志收集系统: Apache Flume、 Facebook Scribe、 Apache Chukwa 2、flume的核心是agent。
agent是一个java进程,执行在日志收集端,通过agent接收日志。然后暂存起来,再发送到目的地。 3、agent里面包括3个核心组件:source、channel、sink。
3.1、source组件是专用于收集日志的。能够处理各种类型各种格式的日志数据,包含avro、thrift、exec、jms、spooling directory、netcat、 sequence generator、syslog、http、legacy、自己定义。source组件把数据收集来以后。暂时存放在channel中。
3.2、channel组件是在agent中专用于暂时存储数据的,能够存放在memory、jdbc、file、自己定义。 channel中的数据仅仅有在sink发送成功之后才会被删除。 3.3、sink组件是用于把数据发送到目的地的组件,目的地包含hdfs、logger、avro、thrift、ipc、file、null、hbase、solr、自己定义。 4、在整个传输数据过程中。流动的是event。事务保证是在event级别。 5、flume能够支持多级flume的agent,支持扇入(fan-in)、扇出(fan-out)。
Flume简单处理示意图
Flume复杂处理示意图
二、Flume安装配置
2.1、下载Flume
2.2、解压缩
cd /home/yujianxin/flume tar -zxvf apache-flume-1.4.0-src.tar.gz ; tar -zxvfapache-flume-1.4.0-bin.tar.gz
然后把src目录中的内容所有拷贝到bin目录
2.3、配置Flume环境变量
三、验证Flume安装是否成功
OK!
出现如上截图,说明Flume安装成功。
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