ALM-45742 Guardian Failed to Call the ECS Metadata API

This section applies only to MRS 3.3.0 or later.

Alarm Description

When Guardian calls an IAM API to obtain the temporary AK/SK, it needs to first obtain related metadata via the ECS Metadata API. This alarm is generated when Guardian fails to call the Metadata API.

Alarm Attributes

Alarm ID	Alarm Severity	Alarm Type	Service Type	Auto Cleared
45742	Major	Quality of service	Guardian	Yes

Alarm Parameters

Type	Parameter	Description
Location Information	Source	Specifies the cluster for which the alarm is generated.
	ServiceName	Specifies the service for which the alarm is generated.
	RoleName	Specifies the role for which the alarm is generated.
	HostName	Specifies the host for which the alarm is generated.

Impact on the System

The task may fail to obtain the temporary AK/SK for accessing OBS. As a result, OBS cannot be accessed.

Possible Causes

An underlying interface of ECS is abnormal.

Handling Procedure

Collect fault information.

On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
Expand the Service drop-down list, and select Guardian for the destination cluster.
Click the edit icon in the upper right corner, and set Start Date and End Date for log collection to 1 hour ahead of and after the alarm generation time, respectively. Then, click Download.
Contact O&M engineers and provide the collected logs.