ALM-50222 Disk Status of a Specified Data Directory on BE Is Abnormal

Updated on 2024-11-29 GMT+08:00

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Alarm Description

The system checks the disk status of a specified data directory on BE every 30 seconds. This alarm is generated when the disk status is not 1 (1 indicates the normal state and 0 indicates the abnormal state). This alarm is cleared when the disk status of the specified data directory on BE becomes normal.

Alarm Attributes

Alarm ID	Alarm Severity	Alarm Type	Service Type	Auto Cleared
50222	Critical	Quality of service	Doris	Yes

Alarm Parameters

Type	Parameter	Description
Location Information	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.
Additional Information	Detail	Specifies the alarm triggering condition.

Impact on the System

Service data may be unavailable, and data queries on the Doris client may fail.

Possible Causes

The hard disk is faulty.
The disk permissions are set incorrectly.

Handling Procedure

Check whether a disk alarm is generated.

On FusionInsight Manager, choose O&M > Alarm > Alarms and check whether ALM-12014 Partition Lost or ALM-12033 Slow Disk Fault exists.
- If yes, go to 2.
- If no, go to 4.
Rectify the fault by referring to the handling procedure of ALM-12014 Partition Lost or ALM-12033 Slow Disk Fault. Then, check whether the alarm is cleared.
- If yes, go to 3.
- If no, go to 4.
Wait 5 minutes and check whether the alarm is cleared.
- If yes, no further action is required.
- If no, go to 4.

Modify disk permissions.

Choose O&M > Alarm > Alarms and view Location and Additional Information of the alarm to obtain the location of the faulty disk.
Log in to the node for which the alarm is generated as user root. Go to the directory where the faulty disk is located, and run the ll command to check whether the permission for the faulty disk is 711 and whether the user is omm.
- If yes, go to 7.
- If no, go to 6.
Modify the permission of the faulty disk. For example, if the faulty disk is data1, run the following commands:

chown omm:wheel data1

chmod 711 data1
Choose Cluster > Services > Doris > Instances, select this BE instance, click More, and select Restart Instance. Wait 5 minutes and check whether an alarm is generated.
- If no, no further action is required.
- If yes, go to 8.

Collect fault information.

On FusionInsight Manager, choose O&M. In the navigation pane on the left, choose Log > Download.
Expand the Service drop-down list, and select Doris and OMS for the target cluster.
Click the edit icon in the upper right corner, and set Start Date and End Date for log collection to 20 minutes ahead of and after the alarm generation time, respectively. Then, click Download.
Contact O&M engineers and provide the collected logs.