Help Center/ MapReduce Service/ User Guide/ MRS Cluster O&M/ MRS Cluster Alarm Handling Reference/ ALM-12011 Data Synchronization Exception Between the Active and Standby Manager Nodes (For MRS 2.x or Earlier)
Updated on 2024-09-23 GMT+08:00

ALM-12011 Data Synchronization Exception Between the Active and Standby Manager Nodes (For MRS 2.x or Earlier)

Description

This alarm is generated when the standby Manager fails to synchronize files with the active Manager.

This alarm is cleared when the standby Manager synchronizes files with the active Manager.

Attribute

Alarm ID

Alarm Severity

Auto Clear

12011

Critical

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.

Local Manager HA Name

Specifies a local Manager HA.

Peer Manager HA Name

Specifies a peer Manager HA.

Impact on the System

Because the configuration files on the standby Manager are not updated, some configurations will be lost after an active/standby switchover. Manager and some components may not run properly.

Possible Causes

The link between the active and standby Manager nodes is interrupted.

Procedure

  1. Check whether the network between the active and standby Manager servers is normal.

    1. Go to the MRS cluster details page. In the alarm list on the alarm management tab page, click the row that contains the alarm. In the alarm details, view the address of the standby Manager server.
    2. Log in to the active management node. Run the following command to check whether the standby Manager is reachable:

      ping IP address of the standby Manager

      • If yes, go to 2.
      • If no, go to 1.c.
    3. Contact the O&M personnel to check whether the network is faulty.
      • If yes, go to 1.d.
      • If no, go to 2.
    4. Rectify the network fault and check whether the alarm is cleared from the alarm list.
      • If yes, no further action is required.
      • If no, go to 2.

  2. Collect fault information.

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

Reference

None