ALM-46003 MOTService Heartbeat Interruption Between the Active and Standby Nodes

Alarm Description

This alarm is generated when the active or standby MOTService node has not received heartbeat messages from the peer node for 7 seconds.

This alarm is cleared when the heartbeat recovers.

Alarm Attributes

Alarm ID	Alarm Severity	Alarm Type	Service Type	Auto Cleared
46003	Major	Heartbeat	MOTService	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	Local MOTService HA Name	Specifies a local MOTService HA.
	Peer MOTService HA Name	Specifies a peer MOTService HA.
	SYNC_PERCENT	Specifies the synchronization percentage of the active and standby MOTService nodes.

Impact on the System

During the MOTService heartbeat interruption, only one node provides the service. Once this node becomes faulty, the MOTService service cannot be switched to a standby node and will become unavailable.

Possible Causes

The network between the active and standby MOTService nodes is abnormal.

Handling Procedure

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

On FusionInsight Manager, choose Cluster > Services > MOTService > Instance. View and record the service IP addresses of MOTServer(Active) and MOTServer(Standby) instances.
Log in to the MOTServer(Active) node as user omm.
Run the following command to check whether the network connection between the active and standby MOTService nodes is normal:
ping Service IP address of the MOTServer(Standby) node
- If yes, go to 6.
- If no, go to 4.
Contact the network administrator to check whether the network is faulty.
- If yes, go to 5.
- If no, go to 6.
Rectify the network fault and check whether the alarm is cleared in the alarm list.
- If yes, no further action is required.
- If no, go to 6.

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 MOTService.
Expand the Hosts drop-down list. In the Select Host dialog box that is displayed, select the hosts to which the role belongs.
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.
Contact O&M personnel/Technical support and provide the collected logs.