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System

System 采集器收集系统负载、正常运行时间、CPU 核心数量以及登录的用户数。

配置

成功安装 DataKit 并启动后，会默认开启 System 采集器，无需手动开启。

采集器配置

进入 DataKit 安装目录下的 conf.d/host 目录，复制 system.conf.sample 并命名为 system.conf。示例如下：

[[inputs.system]]
  ##(optional) collect interval, default is 10 seconds
  interval = '10s'

  [inputs.system.tags]
    # some_tag = "some_value"
    # more_tag = "some_other_value"

配置好后，重启 DataKit 即可。

可通过 ConfigMap 方式注入采集器配置 或 配置 ENV_DATAKIT_INPUTS 开启采集器。

也支持以环境变量的方式修改配置参数（需要在 ENV_DEFAULT_ENABLED_INPUTS 中加为默认采集器）：

  • ENV_INPUT_SYSTEM_INTERVAL

    采集器重复间隔时长

    Type: TimeDuration

    ConfField: interval

    Default: 10s

  • ENV_INPUT_SYSTEM_TAGS

    自定义标签。如果配置文件有同名标签，将会覆盖它

    Type: Map

    ConfField: tags

    Example: tag1=value1,tag2=value2

指标

以下所有数据采集，默认会追加名为 host 的全局 tag（tag 值为 DataKit 所在主机名），也可以在配置中通过 [inputs.system.tags] 指定其它标签：

 [inputs.system.tags]
  # some_tag = "some_value"
  # more_tag = "some_other_value"
  # ...

system

Basic information about system operation.

  • 标签
Tag Description
host hostname
  • 指标列表
Metric Description Type Unit
cpu_total_usage The percentage of used CPU. float percent
load1 CPU load average over the past 1 minute. float -
load15 CPU load average over the past 15 minutes. float -
load15_per_core CPU single core load average over the past 15 minutes. float -
load1_per_core CPU single core load average over the past 1 minute. float -
load5 CPU load average over the past 5 minutes. float -
load5_per_core CPU single core load average over the last 5 minutes. float -
memory_usage The percentage of used memory. float percent
n_cpus CPU logical core count. int count
n_users User number. int count
process_count Number of Processes running on the machine. int -
uptime System uptime. int s

conntrack

Connection track metrics (Linux only).

  • 标签
Tag Description
host hostname
  • 指标列表
Metric Description Type Unit
entries Current number of connections. int count
entries_limit The size of the connection tracking table. int count
stat_drop The number of packets dropped due to connection tracking failure. int count
stat_early_drop The number of partially tracked packet entries dropped due to connection tracking table full. int count
stat_found The number of successful search entries. int count
stat_ignore The number of reports that have been tracked. int count
stat_insert The number of packets inserted. int count
stat_insert_failed The number of packages that failed to insert. int count
stat_invalid The number of packets that cannot be tracked. int count
stat_search_restart The number of connection tracking table query restarts due to hash table size modification. int count

filefd

System file handle metrics (Linux only).

  • 标签
Tag Description
host hostname
  • 指标列表
Metric Description Type Unit
allocated The number of allocated file handles. int count
maximum_mega The maximum number of file handles, unit M(10^6). float count

FAQ

为什么没有 cpu_total_usage 指标？

CPU 部分采集功能不支持部分平台，如 macOS。

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