Help Center > > User Guide> FusionInsight Manager Operation Guide> Alarm Reference (Applicable to MRS 3.x)> ALM-45425 ClickHouse Service Unavailable

ALM-45425 ClickHouse Service Unavailable

Updated at: Mar 25, 2021 GMT+08:00


The alarm module checks the ClickHouse instance status every 60 seconds. This alarm is generated when the alarm module detects that all ClickHouse instances are abnormal.

This alarm is cleared when the system detects that any ClickHouse instance is restored and the alarm is cleared.


Alarm ID

Alarm Severity

Automatically Cleared








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


Specifies the service for which the alarm is generated.


Specifies the role for which the alarm is generated.


Specifies the host for which the alarm is generated.

Impact on the System

The ClickHouse service is abnormal. You cannot use FusionInsight Manager to perform cluster operations on the ClickHouse service. The ClickHouse service function is unavailable.

Possible Causes

The ClickHouse process is faulty.


Check whether the ClickHouse process is normal.

  1. On FusionInsight Manager, choose O&M > Alarm > Alarms. In the alarm list, check whether the ALM-45425 ClickHouse Service Unavailable alarm exists.

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

  2. On FusionInsight Manager, choose Cluster > Services > ClickHouse > Instance to check whether all instances are running properly.

    • If yes, no further action is required.
    • If no, go to 3.

Collect the fault information.

  1. On FusionInsight Manager, choose O&M > Log > Download.
  2. Expand the Service drop-down list, and select ClickHouse for the target cluster.
  3. Click 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.
  4. Contact O&M personnel and provide the collected logs.

Alarm Clearing

After the fault that triggers the alarm is rectified, the alarm is automatically cleared.

Related Information


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