Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-12034 Periodic Backup Failure (For MRS 2.x or Earlier)
Updated on 2024-09-23 GMT+08:00
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ALM-12034 Periodic Backup Failure (For MRS 2.x or Earlier)

Description

This alarm is generated when a periodic backup task fails to be executed. This alarm is cleared when the next backup task is executed successfully.

Attribute

Alarm ID

Alarm Severity

Auto Clear

12034

Major

Yes

Parameters

Parameter

Description

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.

TaskName

Specifies the task name.

Impact on the System

No backup package is available for a long time, so the system cannot be restored in case of exceptions.

Possible Causes

The alarm cause depends on the task details. Handle the alarm according to the logs and alarm details.

Procedure

Checking whether the disk space is insufficient

  1. On MRS Manager, choose Alarms.
  2. In the alarm list, click of the alarm and obtain the task name from the Location area.
  3. Choose System > Back Up Data.
  4. Search for the backup task based on the task name and choose More > View History in the Operation column to view detailed information about the backup task.
  5. Choose Details > View and check whether message "Failed to backup xx due to insufficient disk space, move the data in the /srv/BigData/LocalBackup directory to other directories." exists.

    • If yes, go to 6.
    • If no, go to 13.

  6. Choose Backup Path > View to obtain the backup path.
  7. Log in to the node as user root and view the mounting details of the node.

    df -h

  8. Check whether the available space of the node to which the backup path is mounted is less than 20 GB.

    • If yes, go to 9.
    • If no, go to 13.

  9. Check whether the backup package exists in the backup directory and whether the available space of the node to which the backup directory is mounted is less than 20 GB.

    • If yes, go to 10.
    • If no, go to 13.

  10. Ensure that the available space of the node to which the backup directory is mounted to be greater than 20 GB by moving backup packages out of the backup directory or deleting the backup packages.
  11. Start the backup task again and check whether the backup task is executed.

    • If yes, go to 12.
    • If no, go to 13.

  12. After 2 minutes, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 13.

Collecting fault information

  1. On MRS Manager, choose System > Export Log.
  2. Contact the O&M engineers and send the collected logs.

Alarm Clearing

This alarm is automatically cleared after the fault is rectified.

Reference

None