Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-50602 CPU Usage of LDMS Compute Instance Exceeded the Threshold
Updated on 2026-09-24 GMT+08:00
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ALM-50602 CPU Usage of LDMS Compute Instance Exceeded the Threshold

This section applies only to MRS 3.6.0 or later.

Alarm Description

The system checks the average CPU usage of LDMS compute instances every 30 seconds. This alarm is generated when the average CPU usage of the instances is greater than 90%.

This alarm is cleared when the CPU usage of the LDMS compute instances is no more than 90%.

Alarm Attributes

Alarm ID

Alarm Severity

Auto Cleared

50602

Major

Yes

Alarm Parameters

Type

Parameter

Description

Location Information

Source

Specifies the cluster 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.

Additional Information

Cpu Usage Exceeds The Threshold

Specifies the tenant name of the compute instance for which the alarm was generated and how much the threshold is exceeded.

Impact on the System

The performance of the LDMS compute instances deteriorates and the service response becomes slow.

Possible Causes

Too many requests are sent to the LDMS frontend.

Handling Procedure

Check whether compute instance resources are properly configured.

  1. Log in to FusionInsight Manager as an administrator who can access the LDMS web UI.
  2. Check whether there are too many requests for accessing the LDMS service.
  3. Check the LDMS service instances with high CPU usage.
  4. Wait 2 minutes and check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 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 LDMS for the target cluster, and click OK.
  3. Expand the Hosts drop-down list. In the Select Host dialog box that is displayed, select the hosts to which the role belongs, and click OK.
  4. 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.
  5. Contact O&M technical support and send the collected logs.

Alarm Clearance

This alarm is automatically cleared after the fault is rectified.

Related Information

None

Parent Topic: MRS Cluster Alarm Handling Reference