Help Center> MapReduce Service> User Guide> Alarm Reference (Applicable to MRS 3.x)> ALM-50202 FE CPU Usage Exceeds the Threshold
Updated on 2023-10-10 GMT+08:00
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ALM-50202 FE CPU Usage Exceeds the Threshold

Alarm Description

The system checks the CPU usage of the FE instance every 30 seconds. The CPU usage has a default threshold. This alarm is generated when the CPU usage exceeds the threshold (95% by default) for multiple consecutive times (3 by default).

This alarm is cleared when Trigger Count is 1 and the CPU usage is less than or equal to the threshold. This alarm is cleared when Trigger Count is greater than 1 and the CPU usage is less than or equal to 85% of the threshold.

Alarm Attributes

Alarm ID

Alarm Severity

Auto Cleared

50202

Major

Yes

Alarm Parameters

Parameter

Description

Source

Specifies the cluster or system 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.

Trigger Condition

Specifies the threshold for triggering the alarm.

Impact on the System

Processes respond slowly or do not work.

Possible Causes

The alarm threshold or alarm trigger count is improperly configured.

Handling Procedure

Check whether the alarm threshold or alarm trigger count is properly configured.

  1. Log in to FusionInsight Manager, choose O&M > Alarm > Thresholds, select the name of the desired cluster, and choose Doris > CPU and Memory > CPU Usage of FE (FE).
  2. Click the edit button next to Trigger Count, change the number based on site requirements, and click OK.

    Trigger Count specifies how many times the threshold can be hit before an alarm is generated.

  3. Click Modify in the Operation column, change the alarm threshold based on site requirements, and click OK.
  4. Wait 2 minutes and check whether the alarm is automatically cleared.

    • If yes, no further action is required.
    • If no, go to 5.

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, select Doris for the target cluster, and click OK.
  3. Click the edit icon in the upper right corner, and set Start Date and End Date for log collection to 10 minutes ahead of and after the alarm generation time, respectively. Then, click Download.
  4. Contact O&M personnel and provide the collected logs.

Alarm Clearance

This alarm is automatically cleared after the fault is rectified.

Related Information

None.