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大数据高可用集群环境安装与配置（08）——安装Ganglia监控集群

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11/28
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1. 安装依赖包和软件

在所有服务器上输入命令进行安装操作 

yum install epel-release -y

yum install ganglia-web ganglia-gmetad ganglia-gmond –y

2. 在master服务器上配置监控端 
vi /etc/ganglia/gmetad.conf

修改下面内容 

data_source "server"  master: master-backup: node1: node2: node3:

case_sensitive_hostnames 
vi /etc/ganglia/gmond.conf

修改下面内容 

cluster {

  name = "server"

  owner = "unspecified"

  latlong = "unspecified"

  url = "unspecified"

}

udp_send_channel {

  #mcast_join = 239.2.11.71

  host = master

  port =

  ttl =

}

udp_recv_channel {

  #mcast_join = 239.2.11.71

  port =

  #bind = 239.2.11.71

  #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 =

}

修改HTTP访问配置 

vi /etc/httpd/conf.d/ganglia.conf

修改下面内容 

Alias /ganglia /usr/share/ganglia

<Location /ganglia>

  Order deny,allow

  Allow from all

  #Require local

  # Require ip 10.1.2.3

  # Require host example.org

</Location>

设置ganglia监控程序链接到指定目录 

ln -s /usr/share/ganglia/ /var/www/html/ganglia

修改apache配置 

vi /etc/httpd/conf/httpd.conf

将Directory里的内容改为 

# 修改80端口为10080，防止后面与nginx端口冲突

Listen 

<Directory />

    AllowOverride none

    Order Allow,Deny

    Allow from all

    #Require all denied

</Directory>

3. 启动apache和ganglia，并设置开机启动 
systemctl start httpd.service

systemctl start gmetad

systemctl start gmond

systemctl enable httpd.service

systemctl enable gmetad

systemctl enable gmond

启动服务 

rrdcached /usr/bin/rrdcached -p /var/run/ganglia/hdp/rrdcached.pid -m  -l unix:/var/run/ganglia/hdp/rrdcached.sock -m  -P FLUSH,STATS,HELP -l unix:/var/run/ganglia/hdp/rrdcached.limited.sock -b /var/lib/ganglia/rrds -B -t  -w  -f  -z  -F

设置开机启动 

vi /etc/rc.local

在尾部添加下面配置 

/usr/bin/rrdcached -p /var/run/ganglia/hdp/rrdcached.pid -m  -l unix:/var/run/ganglia/hdp/rrdcached.sock -m  -P FLUSH,STATS,HELP -l unix:/var/run/ganglia/hdp/rrdcached.limited.sock -b /var/lib/ganglia/rrds -B -t  -w  -f  -z  -F

4. 配置被监控端

在其他服务器上做下面操作 

vi /etc/ganglia/gmond.conf

修改下面内容 

cluster {

  name = "server"

  owner = "unspecified"

  latlong = "unspecified"

  url = "unspecified"

}

udp_send_channel {

  #mcast_join = 239.2.11.71

  host = master

  port =

  ttl =

}

udp_recv_channel {

  #mcast_join = 239.2.11.71

  port =

  #bind = 239.2.11.71

  #retry_bind = true

}

5. 配置HDFS、YARN集成Ganglia 
vi /usr/local/hadoop/etc/hadoop/hadoop-metrics2.properties

将里面的值全部注释掉，然后替换成下面配置 

# for Ganglia 3.1 support

*.sink.ganglia.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31

*.sink.ganglia.period=

# default for supportsparse is false

*.sink.ganglia.supportsparse=true

*.sink.ganglia.slope=jvm.metrics.gcCount=zero,jvm.metrics.memHeapUsedM=both

*.sink.ganglia.dmax=jvm.metrics.threadsBlocked=,jvm.metrics.memHeapUsedM=

namenode.sink.ganglia.servers=master: # host请参考gmond.conf中的定义

datanode.sink.ganglia.servers=master:

resourcemanager.sink.ganglia.servers=master:

nodemanager.sink.ganglia.servers=master:

mrappmaster.sink.ganglia.servers=master:

jobhistoryserver.sink.ganglia.servers=master:

# 注意下面参数，如果修改可能会造成数据量过大，ganglia的磁盘空间迅速占满。

# Switch off container metrics

*.source.filter.class=org.apache.hadoop.metrics2.filter.GlobFilter

nodemanager.*.source.filter.exclude=*ContainerResource*

6. 配置HBase集成Ganglia 
vi /usr/local/hbase/conf/hadoop-metrics2-hbase.properties

将里面的值全部注释掉，然后替换成下面配置 

*.sink.file*.class=org.apache.hadoop.metrics2.sink.FileSink

# default sampling period

*.period=

*.source.filter.class=org.apache.hadoop.metrics2.filter.GlobFilter

*.record.filter.class=${*.source.filter.class}

*.metric.filter.class=${*.source.filter.class}

hbase.sink.ganglia.record.filter.exclude=*Regions*

hbase.sink.ganglia.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31

hbase.sink.ganglia.tagsForPrefix.jvm=ProcessName

*.sink.ganglia.period=

hbase.sink.ganglia.servers=master: # host请参考gmond.conf中的定义

7. 设置被监控端自启动 
systemctl start gmond

systemctl enable gmond

8. 检查服务是否正常

在master服务器上重启hadoop与hbase服务 访问http://192.168.10.90:10080/ganglia/ 查看监控页面

在master服务器输入命令查看监控服务运行状态 

gstat –a

systemctl status gmetad –l

当遇到无法查看到监控信息时，可用上面的命令查看运行状态，如果gmetad与gmond服务都正常运行，却在网页端没有图形数据，可以在master服务器输入systemctl restart gmetad重启监控服务，在三个服务器都输入systemctl restart gmond重启监控收集服务。

版权声明：本文原创发表于 博客园，作者为 AllEmpty 本文欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则视为侵权。

作者博客：http://www.cnblogs.com/EmptyFS/

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