5 Observability

This chapter lists the observability changes in release 24.3.x.

5.1 Metrics

This section lists the added or updated metrics in release 24.3.x.

For more information about metrics, see Oracle Communications Cloud Native Core, cnDBTier User Guide.

Release 24.3.1

There are no updates to metrics in this release.

Release 24.3.0

The following metrics are added or updated in this release:

• db_tier_cluster_disconnect
• db_tier_cluster_status

5.2 Alerts

This section lists the added or updated alerts in release 24.3.x.

For more information about alerts, see Oracle Communications Cloud Native Core, cnDBTier User Guide.

Release 24.3.1

There are no updates to alerts in this release.

Release 24.3.0

The following alerts are added or updated in this release:

• Added the following alerts to notify when the NDB cluster disconnects and the georeplication recovery fails:
  • MYSQL_NDB_CLUSTER_DISCONNECT
  • GEOREPLICATION_RECOVERY_FAILED
• Updated the SNMP Trap ID value of the following alerts:
  • BACKUP_STORAGE_LOW: updated from 2024 to 2014
  • REPLICATION_EPOCHS_LOST: updated from 2024 to 2023
  • HIGH_CPU (critical): updated from 2002 to 2035
  • BINLOG_STORAGE_LOW (major): updated from 2007 to 2036
• Updated the name of the PVC_NOT_ACCESSIBLE alert from PVC_NOT_ACCESIBLE to PVC_NOT_ACCESSIBLE.
• Updated the condition of the NODE_DOWN alert to db_tier_node_status == 0.