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service collector

The service collector exposes metrics about Windows Services


Metric name prefix	`service`
Classes	`Win32_Service`
Enabled by default?	Yes

Flags

`--collector.service.services-where`

A WMI filter on which services to include. Recommended to keep down number of returned metrics.

Example: --collector.service.services-where="Name='windows_exporter'"

Example config win_exporter.yml for multiple services: services-where: Name='SQLServer' OR Name='Couchbase' OR Name='Spooler' OR Name='ActiveMQ'

`--collector.service.use-api`

Uses API calls instead of WMI for performance optimization. Note the previous flag (--collector.service.services-where) won't have any effect on this mode.

Metrics

Name	Description	Type	Labels
`windows_service_info`	Contains service information in labels, constant 1	gauge	name, display_name, process_id, run_as
`windows_service_state`	The state of the service, 1 if the current state, 0 otherwise	gauge	name, state
`windows_service_start_mode`	The start mode of the service, 1 if the current start mode, 0 otherwise	gauge	name, start_mode
`windows_service_status`	The status of the service, 1 if the current status, 0 otherwise	gauge	name, status

For the values of the state, start_mode, status and run_as labels, see below.

States

A service can be in the following states:

stopped
start pending
stop pending
running
continue pending
pause pending
paused
unknown

Start modes

A service can have the following start modes:

boot
system
auto
manual
disabled

Status (not available in API mode)

A service can have any of the following statuses:

ok
error
degraded
unknown
pred fail
starting
stopping
service
stressed
nonrecover
no contact
lost comm

Note that there is some overlap with service state.

Run As

Account name under which a service runs. Depending on the service type, the account name may be in the form of "DomainName\Username" or UPN format ("Username@DomainName").

It corresponds to the StartName attribute of the Win32_Service class. StartName attribute can be NULL and in such case the label is reported as an empty string. Notice that if the attribute is NULL the service is logged on as the LocalSystem account or, for kernel or system-level drive, it runs with a default object name created by the I/O system based on the service name, for example, DWDOM\Admin.

Example metric

Lists the services that have a 'disabled' start mode.

windows_service_start_mode{exported_name=~"(mssqlserver|sqlserveragent)",start_mode="disabled"}

Useful queries

Counts the number of Microsoft SQL Server/Agent Processes

count(windows_service_state{exported_name=~"(sqlserveragent|mssqlserver)",state="running"})

Alerting examples

prometheus.rules

groups:
- name: Microsoft SQL Server Alerts
  rules:

  # Sends an alert when the 'sqlserveragent' service is not in the running state for 3 minutes.
  - alert: SQL Server Agent DOWN
    expr: windows_service_state{instance="SQL",exported_name="sqlserveragent",state="running"} == 0
    for: 3m
    labels:
      severity: high
    annotations:
      summary: "Service {{ $labels.exported_name }} down"
      description: "Service {{ $labels.exported_name }} on instance {{ $labels.instance }} has been down for more than 3 minutes."

  # Sends an alert when the 'mssqlserver' service is not in the running state for 3 minutes.
  - alert: SQL Server DOWN
    expr: windows_service_state{instance="SQL",exported_name="mssqlserver",state="running"} == 0
    for: 3m
    labels:
      severity: high
    annotations:
      summary: "Service {{ $labels.exported_name }} down"
      description: "Service {{ $labels.exported_name }} on instance {{ $labels.instance }} has been down for more than 3 minutes."

In this example, instance is the target label of the host. So each alert will be processed per host, which is then used in the alert description.

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