Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-50221 BE Data Disk Usage Exceeds the Threshold
Updated on 2024-09-23 GMT+08:00
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ALM-50221 BE Data Disk Usage Exceeds the Threshold

Alarm Description

The system checks the usage of BE data disks every 30 seconds. This alarm is generated when the disk usage exceeds the threshold (95% by default).

This alarm is cleared when the system detects that the disk usage is less than the threshold.

Alarm Attributes

Alarm ID

Alarm Severity

Auto Cleared

50221

Critical

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

New data fails to be written, and the task is interrupted.

Possible Causes

  • The disk space of the cluster is full.
  • Data skew occurs among BE nodes.

Handling Procedure

  1. Log in to FusionInsight Manager, choose O&M > Alarm > Alarms, and view the role name and the IP address for the hostname in Location.
  2. Expand the disk capacity of the node for which the alarm is generated.
  3. Go to 4 if the expansion fails or the alarm persists after the expansion.

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 Doris 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 personnel and provide the collected logs.

Alarm Clearance

This alarm is automatically cleared after the fault is rectified.

Related Information

None.