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6.2 Administration
This section describes how to manage the nodes and services that make up a cluster.
Administrator's Reference
This section contains in-depth reference information for the administrator.
Alarms Reference
The pages in this section provide details about all of the types of alarms.
Node Alarms
No Heartbeat Alarm
Describes the NODE_ALARM_NO_HEARTBEAT alarm.

HPE Ezmeral Data Fabric 6.2 Documentation

No Heartbeat Alarm

Describes the NODE_ALARM_NO_HEARTBEAT alarm.

UI Column: No Heartbeat Alarm
Logged As: NODE_ALARM_NO_HEARTBEAT
Meaning: Node is not undergoing maintenance, and no heartbeat detected for over 5 minutes.
Resolution: Check the status of the node manually.
Configuration: Configurable at cluster level. See Configuring the Alarm Threshold Using the CLI for more information.

This alarm is raised when a node is down for more than 5 minutes. By default, this alarm is not raised if an edge node is down. To raise an alarm for edge nodes as well, set the CLDB parameter cldb.ignore.posix.only.hb.alarm to 0 using the command:

/opt/mapr/bin/maprcli config save -values '{cldb.ignore.posix.only.hb.alarm:"0"}'

(Topic last modified: 2019-04-16)