Alert dependencies

Available since MOS 21.1

Using alert inhibition rules, Alertmanager decreases alert noise by suppressing dependent alerts notifications to provide a clearer view on the cloud status and simplify troubleshooting. Alert inhibition rules are enabled by default. The following table describes the dependency between the OpenStack-related alerts. For other alerts, see Mirantis Container Cloud Operations Guide: Alert dependencies.

Once an alert from the Alert column raises, the alert from the Inhibits column will be suppressed with the Inhibited status in the Alertmanager web UI.

Alert

Inhibits

CassandraTombstonesTooManyMajor

CassandraTombstonesTooManyWarning

CinderServiceOutage

CinderServiceDown

KafkaInsufficientBrokers

TargetDownjob

MemcachedConnectionsNoneMajor

MemcachedConnectionsNoneMinor

NeutronAgentOutage

NeutronAgentDown

NovaServiceOutage

NovaServiceDown

OpenstackServiceApiOutage

OpenstackServiceApiDown

TelegrafGatherErrors

OpenstackSSLCertExpirationMajor

OpenstackSSLCertExpirationWarning

TungstenFabricControllerOutage

TungstenFabricControllerDown

TungstenFabricVrouterOutage

TungstenFabricVrouterDown

TungstenFabricVrouterTargetsOutage

TungstenFabricVrouterTargetDown