Apache Flume 数据流监控

数据流监控

• • • • Ganglia的安装与部署
      • 操作Flume测试监控

Ganglia的安装与部署

• 安装httpd服务与php

yum -y install httpd php
           

• 安装其他依赖

yum -y install rrdtool perl-rrdtool rrdtool-devel
yum -y install apr-devel
           

• 安装ganglia

rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum -y install ganglia-gmetad 
yum -y install ganglia-web
yum install -y ganglia-gmond
           

• Ganglia由gmond、gmetad和gweb三部分组成。
• gmond（Ganglia Monitoring Daemon）是一种轻量级服务，安装在每台需要收集指标数据的节点主机上。使用gmond，你可以很容易收集很多系统指标数据，如CPU、内存、磁盘、网络和活跃进程的数据等。
• gmetad（Ganglia Meta Daemon）整合所有信息，并将其以RRD格式存储至磁盘的服务。
• gweb（Ganglia Web）Ganglia可视化工具，gweb是一种利用浏览器显示gmetad所存储数据的PHP前端。在Web界面中以图表方式展现集群的运行状态下收集的多种不同指标数据

• 修改配置文件/etc/httpd/conf.d/ganglia.conf

  vim /etc/httpd/conf.d/ganglia.conf

<Location /ganglia>
  Order deny,allow
  Allow from all
  #Deny from all
  #Allow from 127.0.0.1
  #Allow from ::1
  # Allow from .example.com
</Location>
           

• 修改配置文件/etc/ganglia/gmetad.conf

  vim /etc/ganglia/gmetad.conf

data_source "myCluster" node01
           

• 修改配置文件/etc/ganglia/gmond.conf

  vim /etc/ganglia/gmond.conf

cluster {
  name = "myCluster"
  owner = "unspecified"
  latlong = "unspecified"
  url = "unspecified"
}
udp_send_channel {
  #mcast_join = 239.2.11.71
  host=node01
  port = 8649
  ttl = 1
}
udp_recv_channel {
  #mcast_join = 239.2.11.71
  port = 8649
  bind = node01
  retry_bind = true
}
           

• 修改配置文件/etc/selinux/config

  vim /etc/selinux/config

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted
           

提示：selinux本次生效关闭必须重启，如果此时不想重启，可以临时生效之

setenforce 0

• 启动ganglia

service httpd start
service gmetad start
service gmond start
           

• 打开网页浏览ganglia页面

http://node01/ganglia
           

操作Flume测试监控

• 修改/export/servers/flume/conf目录下的flume-env.sh配置

JAVA_OPTS="-Dflume.monitoring.type=ganglia
-Dflume.monitoring.hosts=node01:8649
-Xms100m
-Xmx200m"
           

• 启动Flume任务

bin/flume-ng agent -c conf -f conf/netcat-logger.conf -n a1  -Dflume.root.logger=INFO,console
           

• 发送数据观察ganglia监测图

telnet node01 44444