flume-ng负载均衡load-balance、failover集群搭建_a2.channels.c1.datadirs-优快云博客

转自：http://blog.youkuaiyun.com/morning_pig/article/details/9093149

集群采用3台机器：

host1 load-balance设置  
host2 机器1  
host3 机器2

其中，host1 机器配置：

#Define a memory channel called c1 on a1  
a1.channels = c1  
a1.sources = r1  
a1.sinks = k1 k2  
a1.sinkgroups = g1  
a1.sinkgroups.g1.sinks = k1 k2  
a1.sinkgroups.g1.processor.type = load_balance  
a1.sinkgroups.g1.processor.selector = round_robin  
a1.sinkgroups.g1.processor.backoff = true  
  
a1.channels.c1.type = file   
a1.channels.c1.checkpointDir = /tmp/flume/loadcheckpoint  
a1.channels.c1.dataDirs = /tmp/flume/loaddata  
  
a1.sources.r1.channels = c1  
a1.sources.r1.type = avro  
a1.sources.r1.bind = 0.0.0.0  
a1.sources.r1.port = 41415  
  
a1.sinks.k1.channel = c1  
a1.sinks.k1.type = avro  
a1.sinks.k1.hostname = host2  
a1.sinks.k1.port = 41414  
a1.sinks.k2.channel = c1  
a1.sinks.k2.type = AVRO  
a1.sinks.k2.hostname = host3  
a1.sinks.k2.port = 41414

host2 机器配置：

a2.channels = c1  
a2.sources = r1  
a2.sinks = k1  
  
a2.channels.c1.type = FILE  
a1.channels.c1.checkpointDir = /tmp/flume/checkpoint  
a1.channels.c1.dataDirs = /tmp/flume/data  
  
a2.sources.r1.channels = c1  
a2.sources.r1.type = AVRO  
a2.sources.r1.bind = 0.0.0.0  
a2.sources.r1.port = 41414  
  
a2.sinks.k1.channel = c1  
a2.sinks.k1.type = file_roll  
a2.sinks.k1.sink.directory = /tmp/load/  
a2.sinks.k1.sink.rollInterval = 0

host3 机器配置：

a2.channels = c1  
a2.sources = r1  
a2.sinks = k1  
  
a2.channels.c1.type = FILE  
a1.channels.c1.checkpointDir = /tmp/flume/checkpoint  
a1.channels.c1.dataDirs = /tmp/flume/data  
  
a2.sources.r1.channels = c1  
a2.sources.r1.type = AVRO  
a2.sources.r1.bind = 0.0.0.0  
a2.sources.r1.port = 41414  
  
a2.sinks.k1.channel = c1  
a2.sinks.k1.type = file_roll  
a2.sinks.k1.sink.directory = /tmp/load/  
a2.sinks.k1.sink.rollInterval = 0

客户端机器暂时使用flume-ng的agent发送，配置如下：

# Define a memory channel called c1 on a1  
a1.channels.c1.type = file   
a1.channels.c1.checkpointDir = /tmp/flume/checkpoint  
a1.channels.c1.dataDirs = /tmp/flume/data  
  
  
a1.sources.r1.channels = c1  
a1.sources.r1.type = exec  
a1.sources.r1.command = cat /tmp/linux.log  
  
a1.sinks.k1.type = avro   
a1.sinks.k1.channel = c1  
a1.sinks.k1.hostname = host1  
a1.sinks.k1.port = 41415  
  
a1.channels = c1  
a1.sources = r1  
a1.sinks = k1

注意：启动方式最好是从下往上启动。即：先启动host2和host3，然后启动host1，最后启动client。

启动：

host2：

bin/flume-ng agent -c conf -f conf/load-sink1.conf -n a2

host3：

bin/flume-ng agent -c conf -f conf/load-sink2.conf -n a2

host1：

bin/flume-ng agent -c conf -f conf/load-balance.conf -n a1