Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-45450 ClickHouse Failed to Obtain a Temporary Agency Credential
Updated on 2024-11-13 GMT+08:00
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ALM-45450 ClickHouse Failed to Obtain a Temporary Agency Credential

This section is available for MRS 3.3.1 or later version only.

Alarm Description

After the cold-hot separation function and an agency are configured, the system checks the status of the temporary agency credential every minute. This alarm is generated when the the temporary agency credential fails to be obtained for three consecutive times.

This alarm is automatically cleared when the system successfully obtains the temporary agency credential.

Alarm Attributes

Alarm ID

Alarm Severity

Auto Cleared

45450

Critical

Yes

Alarm Parameters

Type

Parameter

Description

Location Information

Source

Specifies the cluster or system for which the alarm was generated.

ServiceName

Specifies the service for which the alarm was generated.

RoleName

Specifies the role for which the alarm was generated.

HostName

Specifies the host for which the alarm was generated.

Impact on the System

The system cannot access OBS after the temporary agency credential expires. Operations such as reading and writing cold data in OBS cannot be performed on tables configured with cold and hot separation policies.

Possible Causes

  • The OBS parameters configured for ClickHouse are incorrect.
  • The IAM service is abnormal.

Handling Procedure

  1. Check whether the cold and hot separation configuration is correct. If the configuration is incorrect, modify the configuration and restart the ClickHouse instance. Wait for 3 minutes and check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 2.

Collect fault information.

  1. On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
  2. Expand the Service drop-down list, and select ClickHouse for the target cluster.
  3. Expand the Hosts drop-down list. In the Select Host dialog box that is displayed, select the abnormal host, and click OK.
  4. 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.
  5. Contact O&M engineers and provide the collected logs.

Alarm Clearance

This alarm is automatically cleared after the fault is rectified.

Related Information

None.