Collectd 和 InfluxDB 的部署和使用

更新软件包

$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo reboot

安装influxdb

hanwei@ubuntu-lab:~$ wget https://dl.influxdata.com/influxdb/releases/influxdb_1.2.4_amd64.deb
--2017-06-14 16:37:09--  https://dl.influxdata.com/influxdb/releases/influxdb_1.2.4_amd64.deb
Resolving dl.influxdata.com (dl.influxdata.com)... 52.84.167.167, 52.84.167.39, 52.84.167.178, ...
Connecting to dl.influxdata.com (dl.influxdata.com)|52.84.167.167|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17305080 (17M) [application/x-debian-package]
Saving to: ‘influxdb_1.2.4_amd64.deb’

influxdb_1.2.4_amd64.deb         100%[========================================================>]  16.50M   875KB/s    in 19s     

2017-06-14 16:37:29 (874 KB/s) - ‘influxdb_1.2.4_amd64.deb’ saved [17305080/17305080]

hanwei@ubuntu-lab:~$ sudo dpkg -i influxdb_1.2.4_amd64.deb
[sudo] password for hanwei:
Selecting previously unselected package influxdb.
(Reading database ... 63342 files and directories currently installed.)
Preparing to unpack influxdb_1.2.4_amd64.deb ...
Unpacking influxdb (1.2.4-1) ...
Setting up influxdb (1.2.4-1) ...
Created symlink from /etc/systemd/system/influxd.service to /lib/systemd/system/influxdb.service.
Created symlink from /etc/systemd/system/multi-user.target.wants/influxdb.service to /lib/systemd/system/influxdb.service.
Processing triggers for man-db (2.7.5-1) ...
hanwei@ubuntu-lab:~$ service influxdb start
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to start 'influxdb.service'.
Authenticating as: hanwei,,, (hanwei)
Password:
==== AUTHENTICATION COMPLETE ===
hanwei@ubuntu-lab:~$ service influxdb status
● influxdb.service - InfluxDB is an open-source, distributed, time series database
   Loaded: loaded (/lib/systemd/system/influxdb.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2017-06-14 16:50:05 CST; 4s ago
     Docs: https://docs.influxdata.com/influxdb/
 Main PID: 2156 (influxd)
    Tasks: 7
   Memory: 4.9M
      CPU: 49ms
   CGroup: /system.slice/influxdb.service
           └─2156 /usr/bin/influxd -config /etc/influxdb/influxdb.conf

修改influxdb配置文件

hanwei@ubuntu-lab:~$ vim /etc/influxdb/influxdb.conf
[admin]
  # Determines whether the admin service is enabled.
  # enabled = false

  # The default bind address used by the admin service.
  # bind-address = ":8083"

  # Whether the admin service should use HTTPS.
  # https-enabled = false

修改成
enabled = true
bind-address = ":8083"

在infuxdb创建数据库Collectd

两种方式CLI或者web ui

http://192.168.206.144:8086/query?q=CREATE+DATABASE+%22collectd%22&db=collectd

或者用web ui

安装 Collectd

$ sudo apt-get install collectd

配置 Collectd 为客户端，收集到数据后直接发给 InfluxDB

$ sudo vi /etc/collectd/collectd.conf
...
LoadPlugin network
...
<Plugin network>
        Server "192.168.2.183" "25826"
</Plugin>
...

重启 Collectd：

$ sudo /etc/init.d/collectd restart

配置 InfluxDB 自带的 Collectd 插件

InfluxDB 自带的 Collectd 插件默认是关闭的，需要手动配置打开 enabled = true，并填上 database = “collectd” 这一行，这里的 “collectd” 就是我们上面创建的那个数据库，更改配置后记得重启 InfluxDB

$ sudo vim /etc/influxdb/shared/influxdb.conf
...
  # Configure the collectd api
  [input_plugins.collectd]
  enabled = true
  # address = "0.0.0.0" # If not set, is actually set to bind-address.
  # port = 25826
  database = "collectd"
  # types.db can be found in a collectd installation or on github:
  # https://github.com/collectd/collectd/blob/master/src/types.db
  # typesdb = "/usr/share/collectd/types.db" # The path to the collectd types.db file
...
hanwei@ubuntu-lab:~$ sudo service influxdb restart

检查一下服务器上打开的端口就会发现 influxdb 插件启动了一个 25826 端口，如果发现 InfluxDB 数据库里没有（收集到）数据，务必检查这个 25826 端口是否正常启动了

hanwei@ubuntu-lab:~$ sudo netstat -tupln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 192.168.122.1:53        0.0.0.0:*               LISTEN      1649/dnsmasq
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1308/sshd
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      1437/postgres
tcp        0      0 127.0.0.1:6010          0.0.0.0:*               LISTEN      1740/0
tcp        0      0 127.0.0.1:6011          0.0.0.0:*               LISTEN      10471/1
tcp6       0      0 :::8083                 :::*                    LISTEN      10490/influxd
tcp6       0      0 :::8086                 :::*                    LISTEN      10490/influxd
tcp6       0      0 :::22                   :::*                    LISTEN      1308/sshd
tcp6       0      0 :::8088                 :::*                    LISTEN      10490/influxd
tcp6       0      0 ::1:5432                :::*                    LISTEN      1437/postgres
tcp6       0      0 ::1:6010                :::*                    LISTEN      1740/0
tcp6       0      0 ::1:6011                :::*                    LISTEN      10471/1
udp        0      0 0.0.0.0:53466           0.0.0.0:*                           10239/collectd
udp        0      0 192.168.122.1:53        0.0.0.0:*                           1649/dnsmasq
udp        0      0 0.0.0.0:67              0.0.0.0:*                           1649/dnsmasq
udp        0      0 0.0.0.0:68              0.0.0.0:*                           1250/dhclient
udp6       0      0 :::25826                :::*                                10490/influxd

检查InfluxDB是否有Collectd 传来的数据

InfluxDB 已经准备好接受和处理 Collectd 传来的数据了。用命令行或者 Web 管理界面验证一下数据库里是否有数据

hanwei@ubuntu-lab:~$ influx
Connected to http://localhost:8086 version 1.2.4
InfluxDB shell version: 1.2.4
> show databases;
name: databases
name
----
_internal
mydb
> use collectd
Using database collectd
> show measurements
name: measurements
name
----
cpu_value
df_value
disk_io_time
disk_read
disk_value
disk_weighted_io_time
disk_write
entropy_value
interface_rx
interface_tx
irq_value
load_longterm
load_midterm
load_shortterm
memory_value
processes_value
swap_value
users_value
> SELECT * from cpu_value
...
7435180464451600 ubuntu-lab.localdomain 0        cpu  nice          722
1497435180464452775 ubuntu-lab.localdomain 0        cpu  interrupt     0
1497435180464454083 ubuntu-lab.localdomain 0        cpu  softirq       339
1497435180464454592 ubuntu-lab.localdomain 0        cpu  steal         0
1497435180464455103 ubuntu-lab.localdomain 0        cpu  idle          592750
1497435190462593838 ubuntu-lab.localdomain 0        cpu  user          4281
1497435190462598610 ubuntu-lab.localdomain 0        cpu  system        5599
1497435190462600580 ubuntu-lab.localdomain 0        cpu  wait          7799
1497435190462602296 ubuntu-lab.localdomain 0        cpu  nice          722
1497435190462603649 ubuntu-lab.localdomain 0        cpu  interrupt     0
1497435190462604905 ubuntu-lab.localdomain 0        cpu  softirq       339
1497435190462605510 ubuntu-lab.localdomain 0        cpu  steal         0
1497435190462606004 ubuntu-lab.localdomain 0        cpu  idle          593745
1497435200463552177 ubuntu-lab.localdomain 0        cpu  user          4285
1497435200463557277 ubuntu-lab.localdomain 0        cpu  system        5608
1497435200463558626 ubuntu-lab.localdomain 0        cpu  wait          7799
1497435200463560045 ubuntu-lab.localdomain 0        cpu  nice          722
1497435200463561496 ubuntu-lab.localdomain 0        cpu  interrupt     0
1497435200463562866 ubuntu-lab.localdomain 0        cpu  softirq       339
...

或者web ui

转自：https://www.backendcloud.cn/2017/06/15/collectd-influxdb/