:original_name: mrs_01_0532.html

.. _mrs_01_0532:

Yarn Health Check Indicators
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Service Health Status
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**Indicator**: Service Status

**Description**: This indicator is used to check whether the Yarn service status is normal. If the number of NodeManager nodes cannot be obtained, the system is unhealthy.

**Recovery Guide**: If this indicator is abnormal, you can handle the alarm by referring to the alarm handling guide and make sure that the network is normal.

Alarm Check
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**Indicator**: Alarm Information

**Description**: This indicator is used to check whether alarms exist. If alarms exist, the service is unhealthy.

**Recovery Guide**: If this indicator is abnormal, you can rectify the fault by referring to the alarm handling guide.
