Flume监控之Ganglia-CFANZ编程社区

1 Ganglia的安装与部署

1) 安装httpd服务与php

# yum -y install httpd php

2) 安装其他依赖

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

3) 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

4) 修改配置文件

文件ganglia.conf：

# vi /etc/httpd/conf.d/ganglia.conf 修改为： # # Ganglia monitoring system php web frontend # Alias /ganglia /usr/share/ganglia <Location /ganglia> Order deny,allow Deny from all Allow from all # Allow from 127.0.0.1 # Allow from ::1 # Allow from .example.com </Location>

# vi /etc/httpd/conf.d/ganglia.conf
修改为：
#
# Ganglia monitoring system php web frontend
#
 
Alias /ganglia /usr/share/ganglia
 
<Location /ganglia>
  Order deny,allow
  Deny from all
Allow from all
  # Allow from 127.0.0.1
  # Allow from ::1
  # Allow from .example.com
</Location>

文件gmetad.conf：

# vi /etc/ganglia/gmetad.conf 修改为： data_source "linux" 192.168.216.20

文件gmond.conf：

# vi /etc/ganglia/gmond.conf 修改为： cluster { name = "linux" owner = "unspecified" latlong = "unspecified" url = "unspecified" } udp_send_channel { #bind_hostname = yes # Highly recommended, soon to be default. # This option tells gmond to use a source address # that resolves to the machine's hostname. Without # this, the metrics may appear to come from any # interface and the DNS names associated with # those IPs will be used to create the RRDs. # mcast_join = 239.2.11.71 host = 192.168.216.20 port = 8649 ttl = 1 } udp_recv_channel { # mcast_join = 239.2.11.71 port = 8649 bind = 192.168.216.20 retry_bind = true # Size of the UDP buffer. If you are handling lots of metrics you really # should bump it up to e.g. 10MB or even higher. # buffer = 10485760 }

# vi /etc/ganglia/gmond.conf
修改为：
cluster {
name = "linux"
  owner = "unspecified"
  latlong = "unspecified"
  url = "unspecified"
}
udp_send_channel {
  #bind_hostname = yes # Highly recommended, soon to be default.
                       # This option tells gmond to use a source address
                       # that resolves to the machine's hostname.  Without
                       # this, the metrics may appear to come from any
                       # interface and the DNS names associated with
                       # those IPs will be used to create the RRDs.
  # mcast_join = 239.2.11.71
  host = 192.168.216.20
  port = 8649
  ttl = 1
}
udp_recv_channel {
  # mcast_join = 239.2.11.71
  port = 8649
bind = 192.168.216.20
  retry_bind = true
  # Size of the UDP buffer. If you are handling lots of metrics you really
  # should bump it up to e.g. 10MB or even higher.
  # buffer = 10485760
}

文件config：

# vi /etc/selinux/config 修改为： # 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

# vi /etc/selinux/config
修改为：
# 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

尖叫提示：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：

$ sudo setenforce 0

5) 启动ganglia

$ sudo service httpd start $ sudo service gmetad start $ sudo service gmond start

6) 打开网页浏览ganglia页面

http://192.168.216.20/ganglia

尖叫提示：如果完成以上操作依然出现权限不足错误，请修改/var/lib/ganglia目录的权限：

$ sudo chmod -R 777 /var/lib/ganglia

2 操作Flume测试监控

1) 修改flume-env.sh配置：

JAVA_OPTS="-Dflume.monitoring.type=ganglia -Dflume.monitoring.hosts=192.168.216.20:8649 -Xms100m -Xmx200m"

2) 启动flume任务

$ bin/flume-ng agent \ --conf conf/ \ --name a1 \ --conf-file job/group-job0/flume-telnet.conf \ -Dflume.root.logger==INFO,console \ -Dflume.monitoring.type=ganglia \ -Dflume.monitoring.hosts=192.168.216.20:8649

$ bin/flume-ng agent \
--conf conf/ \
--name a1 \
--conf-file job/group-job0/flume-telnet.conf \
-Dflume.root.logger==INFO,console \
-Dflume.monitoring.type=ganglia \
-Dflume.monitoring.hosts=192.168.216.20:8649

3) 发送数据观察ganglia监测图

$ telnet localhost 44444

样式如图：

Flume监控之Ganglia_字段

图例说明：

字段（图表名称）	字段含义
EventPutAttemptCount	source尝试写入channel的事件总数量
EventPutSuccessCount	成功写入channel且提交的事件总数量
EventTakeAttemptCount	sink尝试从channel拉取事件的总数量。这不意味着每次事件都被返回，因为sink拉取的时候channel可能没有任何数据。
EventTakeSuccessCount	sink成功读取的事件的总数量
StartTime	channel启动的时间（毫秒）
StopTime	channel停止的时间（毫秒）
ChannelSize	目前channel中事件的总数量
ChannelFillPercentage	channel占用百分比
ChannelCapacity	channel的容量