前言
Telegraf 是一个用 Go 编写的用于收集机器数据的代理程序。它可部署到机器上收集系统和服务的统计数据，并通过配置写入到 InfluxDB 数据库，然后在通过Grafana或者Chrongraf用于数据展示。
核心功能
-
完全由GO编写，编译产物仅为一个二进制程序，安装运行无需外部依赖
-
运行时内存占用很小
-
对于当前大部分流行的服务来说，telegraf已经有现成的插件支持
-
插件系统可以支持对其他服务轻松扩展
安装&配置
1. MacOs（默认安装最新版本telegraf）
brew update brew install telegraf
2. Ubuntu & Debian
wget https://dl.influxdata.com/telegraf/releases/telegraf_1.15.2-1_amd64.deb sudo dpkg -i telegraf_1.15.2-1_amd64.deb
3. RedHat & CentOS
wget https://dl.influxdata.com/telegraf/releases/telegraf-1.15.2-1.x86_64.rpm sudo yum localinstall telegraf-1.15.2-1.x86_64.rpm
4. Windows Binaries (64-bit)
wget https://dl.influxdata.com/telegraf/releases/telegraf-1.15.2_windows_amd64.zip unzip telegraf-1.15.2_windows_amd64.zip
5. 二进制方式
1）Linux Binaries (64-bit)
wget https://dl.influxdata.com/telegraf/releases/telegraf-1.15.2_linux_amd64.tar.gz tar xf telegraf-1.15.2_linux_amd64.tar.gz
2）Linux Binaries (32-bit)
wget https://dl.influxdata.com/telegraf/releases/telegraf-1.15.2_linux_i386.tar.gz tar xf telegraf-1.15.2_linux_i386.tar.gz
配置文件地址
MacOS: /usr/local/etc/telegraf.conf
Linux debian and RPM package: /etc/telegraf/telegraf.conf
如果你是二进制包的安装方式，可以生成一个telegraf.conf
#配置生成一个telegraf.conf，该配置收集系统的cpu和内存信息，然后输出到influxdb telegraf -sample-config -input-filter cpu:mem -output-filter influxdb > telegraf.conf
配置文件内容
[[outputs.influxdb]] urls = ["http://localhost:8086"] #influxdb中的数据库名，不存在则自动创建 database = "telegraf" #写influxDB超时时间 timeout = "5s"
# 收集cpu的配置
[[inputs.cpu]]
## Whether to report per-cpu stats or not
percpu = true
## Whether to report total system cpu stats or not
totalcpu = true
## If true, collect raw CPU time metrics.
collect_cpu_time = false
## If true, compute and report the sum of all non-idle CPU states.
report_active = false
# 收集disk的信息
[[inputs.disk]]
## By default stats will be gathered for all mount points.
## Set mount_points will restrict the stats to only the specified mount points.
mount_points = ["/data"]
## Ignore mount points by filesystem type.
ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]
# 收集硬盘的io
[[inputs.diskio]]
## By default, telegraf will gather stats for all devices including
## disk partitions.
## Setting devices will restrict the stats to the specified devices.
devices = ["sda", "sdb", "vd*"]
## Uncomment the following line if you need disk serial numbers.
# skip_serial_number = false
#
## On systems which support it, device metadata can be added in the form of
## tags.
## Currently only Linux is supported via udev properties. You can view
## available properties for a device by running:
## 'udevadm info -q property -n /dev/sda'
## Note: Most, but not all, udev properties can be accessed this way. Properties
## that are currently inaccessible include DEVTYPE, DEVNAME, and DEVPATH.
# device_tags = ["ID_FS_TYPE", "ID_FS_USAGE"]
#
## Using the same metadata source as device_tags, you can also customize the
## name of the device via templates.
## The 'name_templates' parameter is a list of templates to try and apply to
## the device. The template may contain variables in the form of '$PROPERTY' or
## '${PROPERTY}'. The first template which does not contain any variables not
## present for the device is used as the device name tag.
## The typical use case is for LVM volumes, to get the VG/LV name instead of
## the near-meaningless DM-0 name.
# name_templates = ["$ID_FS_LABEL","$DM_VG_NAME/$DM_LV_NAME"]
# 收集内存信息
[[inputs.mem]]
interval = "10m"
# 收集进程状态
[[inputs.processes]]
interval = "10m"
fielddrop = ["wait","idle","unknown"]
# 收集swap分区信息
[[inputs.swap]]
interval = "1h"
fieldpass = ["used_percent"]
# 收集系统运行信息
[[inputs.system]]
## Uncomment to remove deprecated metrics.
interval = "2m"
fielddrop = ["uptime_format"]
启动方式
1. MacOS启动方式
brew services start telegraf
2. Linux debian and RPM package
sudo systemctl start telegraf 或者 sudo service telegraf start
nohup telegraf -config /usr/local/etc/telegraf.conf &
启动后，查看日志没有报错即可
博主：测试生财
座右铭：专注测试与自动化，致力提高研发效能；通过测试精进完成原始积累，通过读书理财奔向财务*。
csdn：https://blog.csdn.net/ccgshigao