Flume12 负载均衡-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_43634001/article/details/110443656

Flume12 故障转移

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案例需求

使用Flume监控一个端口，其sink组中的sink分别对接Flume2 和 Flume3，采用FailoverSinkProcessor，实现故障转移的功能。

需求分析

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实现步骤

准备工作

在/opt/module/flume/job 目录下创建 group2 文件夹
```
[atguigu@hadoop102 job]$ cd group2/
```

创建 flume-netcat-flume.conf

配置 1 个接收日志文件的 source 和 1 个 channel、两个 sink ，分别输送给flume-flume-console1 和 flume-flume-console2。

创建配置文件并打开：

[atguigu@hadoop102 group2]$ touch flume-netcat-flume.conf
[atguigu@hadoop102 group2]$ vim flume-netcat-flume.conf

添加如下内容：

# Name the components on this agent
a1.sources = r1
a1.channels = c1
a1.sinkgroups = g1
a1.sinks = k1 k2

# Describe/configure the source
a1.sources.r1.type = netcat
a1.sources.r1.bind = localhost
a1.sources.r1.port = 44444

## Sink Group

a1.sinkgroups.g1.processor.type = load_balance
a1.sinkgroups.g1.processor.backoff = true
a1.sinkgroups.g1.processor.selector = round_robin
a1.sinkgroups.g1.processor.selector.maxTimeOut=10000

# Describe the sink
a1.sinks.k1.type = avro
a1.sinks.k1.hostname = hadoop102
a1.sinks.k1.port = 4141
a1.sinks.k2.type = avro
a1.sinks.k2.hostname = hadoop102
a1.sinks.k2.port = 4142

# Describe the channel
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinkgroups.g1.sinks = k1 k2
a1.sinks.k1.channel = c1
a1.sinks.k2.channel = c1

创建 flume-flume-console1.conf

配置上级 Flume 输出的 Source，输出是到本地控制台。

创建配置文件并打开：

[atguigu@hadoop102 group2]$ touch flume-flume-console1.conf
[atguigu@hadoop102 group2]$ vim flume-flume-console1.conf

添加如下内容：

# Name the components on this agent
a2.sources = r1
a2.sinks = k1
a2.channels = c1

# Describe/configure the source
a2.sources.r1.type = avro
a2.sources.r1.bind = hadoop102
a2.sources.r1.port = 4141

# Describe the sink
a2.sinks.k1.type = logger

# Describe the channel
a2.channels.c1.type = memory
a2.channels.c1.capacity = 1000
a2.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a2.sources.r1.channels = c1
a2.sinks.k1.channel = c1

创建 flume-flume-console2.conf

配置上级 Flume 输出的 Source，输出是到本地控制台。

创建配置文件并打开：

[atguigu@hadoop102 group2]$ touch flume-flume-console2.conf
[atguigu@hadoop102 group2]$ vim flume-flume-console2.conf

添加如下内容：

# Name the components on this agent
a3.sources = r1
a3.sinks = k1
a3.channels = c2

# Describe/configure the source
a3.sources.r1.type = avro
a3.sources.r1.bind = hadoop102
a3.sources.r1.port = 4142

# Describe the sink
a3.sinks.k1.type = logger

# Describe the channel
a3.channels.c2.type = memory
a3.channels.c2.capacity = 1000
a3.channels.c2.transactionCapacity = 100

# Bind the source and sink to the channel
a3.sources.r1.channels = c2
a3.sinks.k1.channel = c2

执行配置文件

分别开启对应配置文件：flume-flume-console2，flume-flume-console1，flume-netcat-flume。

[atguigu@hadoop102 flume]$ bin/flume-ng agent --conf conf/ --name 
a3 --conf-file job/group2/flume-flume-console2.conf
-Dflume.root.logger=INFO,console
[atguigu@hadoop102 flume]$ bin/flume-ng agent --conf conf/ --name 
a2 --conf-file job/group2/flume-flume-console1.conf
-Dflume.root.logger=INFO,console
[atguigu@hadoop102 flume]$ bin/flume-ng agent --conf conf/ --name 
a1 --conf-file job/group2/flume-netcat-flume.conf