elasticSearch插件metricbeat收集nginx的度量指标

ngx_http_stub_status_module模块是Nginx中用来统计Nginx服务所接收和处理的请求数量，只要在编译安装Nginx的时候加上参数--with-http_stub_status_module就可以开启该功能，如果编译时没有加该参数的话可以重新编译安装一次，不会影响原有的配置文件。

#重新编译nginx
./configure --prefix=/usr/local/nginx --with-http_stub_status_module
make
make install
./nginx -V #查询版本信息
nginx version: nginx/1.11.6
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-23) (GCC)
configure arguments: --prefix=/usr/local/nginx --with-http_stub_status_module
#配置nginx
vim nginx.conf
location /nginx-status {
stub_status on;
access_log off;
}

测试：

结果说明：
Active connections：正在处理的活动连接数
server accepts handled requests
第一个 server 表示Nginx启动到现在共处理了9个连接
第二个 accepts 表示Nginx启动到现在共成功创建 9 次握手
第三个 handled requests 表示总共处理了 21 次请求
请求丢失数 = 握手数 - 连接数 ，可以看出目前为止没有丢失请求
Reading: 0 Writing: 1 Waiting: 1
Reading：Nginx 读取到客户端的 Header 信息数
Writing：Nginx 返回给客户端 Header 信息数
Waiting：Nginx 已经处理完正在等候下一次请求指令的驻留链接（开启keep-alive的情况下，这个值等于
Active - (Reading+Writing)）

2、部署与收集系统指标

vim metricbeat.yml

metricbeat.config.modules:
  # Glob pattern for configuration loading
  path: ${path.config}/modules.d/*.yml

  # Set to true to enable config reloading
  reload.enabled: false

  # Period on which files under path should be checked for changes
  #reload.period: 10s

#==================== Elasticsearch template setting ==========================

setup.template.settings:
  index.number_of_shards: 2
  index.codec: best_compression
  #_source.enabled: false

setup.kibana:

output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["127.0.0.1:9200","127.0.0.1:9201","127.0.0.1:9202"]

processors:
  - add_host_metadata: ~
  - add_cloud_metadata: ~

metricbeat默认会加载${path.config}/modules.d/*.yml下的modules模块来收集指标数据，默认只开启了收集system的cpu 内存等信息

system module配置： 查看system.yml的信息

# Module: system
# Docs: https://www.elastic.co/guide/en/beats/metricbeat/6.5/metricbeat-module-system.html

- module: system
  period: 10s
  metricsets:
    - cpu
    #- load
    - memory
    - network
    - process
    - process_summary
    #- core
    #- diskio
    #- socket
  process.include_top_n:
    by_cpu: 5      # include top 5 processes by CPU
    by_memory: 5   # include top 5 processes by memory

- module: system
  period: 1m
  metricsets:
    - filesystem
    - fsstat
  processors:
  - drop_event.when.regexp:
      system.filesystem.mount_point: '^/(sys|cgroup|proc|dev|etc|host|lib)($|/)'

- module: system
  period: 15m
  metricsets:
    - uptime

#- module: system
#  period: 5m
#  metricsets:
#    - raid
#  raid.mount_point: '/'

现在我们要收集nginx的指标信息需要开启对nginx的配置

#启用redis module
./metricbeat modules enable nginx
#修改redis module配置
vim modules.d/nginx.yml
# Module: nginx
# Docs: https://www.elastic.co/guide/en/beats/metricbeat/6.5/metricbeat-modulenginx.html
- module: nginx
#metricsets:
# - stubstatus
period: 10s
# Nginx hosts
hosts: ["http://192.168.40.133"]
# Path to server status. Default server-status
server_status_path: "nginx-status"
#username: "user"
#password: "secret"

开启nginx之后，我们可以使用命令metricbeat modules list 查看当前启用了哪些moudles

接下来我们修改modules.d/nginx.yml

内容如下

# Module: nginx
# Docs: https://www.elastic.co/guide/en/beats/metricbeat/6.5/metricbeat-module-nginx.html

- module: nginx
  #metricsets:
  #  - stubstatus
  period: 10s

  # Nginx hosts
  hosts: ["http://127.0.0.1:8088"]
  server_status_path: "nginx-status"

  # Path to server status. Default server-status
  #server_status_path: "server-status"

  #username: "user"
  #password: "secret"

接下来我们就可以启动metricbeat.exe收集nginx的指标了

metricbeat -e -c metricbeat.yml

2、让收集的度量信息在kibana上展示

1、第一步需要修改metricbeat.yml配置

metricbeat.config.modules:
  # Glob pattern for configuration loading
  path: ${path.config}/modules.d/*.yml

  # Set to true to enable config reloading
  reload.enabled: false

  # Period on which files under path should be checked for changes
  #reload.period: 10s

#==================== Elasticsearch template setting ==========================

setup.template.settings:
  index.number_of_shards: 2
  index.codec: best_compression
  #_source.enabled: false

setup.kibana:
  host: "127.0.0.1:5601"

output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["127.0.0.1:9200","127.0.0.1:9201","127.0.0.1:9202"]

processors:
  - add_host_metadata: ~
  - add_cloud_metadata: ~

1、在这里指定kibana的地址

setup.kibana:
host: "127.0.0.1:5601"

2、文件配置好之后

#安装仪表盘到Kibana 执行命令/metricbeat setup --dashboards，这里一定要保证kibana已经处于正常的启动状态

安装成功之后我们在kibana上面就可以看到对于的仪表盘信息了