Database > RDS for MariaDB > Monitoring

Various events that occur during various tasks related to DB instance and various performance indicators of DB instance can be monitored. Various performance indicators can be checked in charts using the server dashboard. When configuring the monitoring settings of the notification group, notifications will be received via email or SMS regarding the modifications after detecting the changes.


An event refers to important incident incurred by RDS for MariaDB or the user. An event is comprised of a type, date of occurrence, event source, and message. It can be checked on the web console, and notification can be received via email and SMS through subscription. The event types and event occurrences are as follows.

Event Type Event Code Event Message
INSTANCE INSTC_02_01 DB instance started
INSTANCE INSTC_03_01 DB instance stopped
INSTANCE INSTC_04_00 DB instance deletion started
INSTANCE INSTC_04_01 DB instance deleted
INSTANCE INSTC_04_04 DB instance deletion failed
INSTANCE INSTC_05_00 DB instance backup started
INSTANCE INSTC_05_01 DB instance backed up
INSTANCE INSTC_05_04 DB instance backup failed
INSTANCE INSTC_06_00 DB instance restoration started
INSTANCE INSTC_06_01 DB instance restored
INSTANCE INSTC_06_04 DB instance restoration failed
INSTANCE INSTC_07_01 Automated backup setting enabled
INSTANCE INSTC_08_01 Automated backup setting disabled
INSTANCE INSTC_09_00 Modifying detailed settings started
INSTANCE INSTC_09_01 Detailed settings modified
INSTANCE INSTC_09_04 Detailed settings modification failed
INSTANCE INSTC_10_00 Backup settings modification started
INSTANCE INSTC_10_01 Backup settings modified
INSTANCE INSTC_10_04 Backup settings modification failed
INSTANCE INSTC_11_01 User access control modified
INSTANCE INSTC_12_00 DB configuration modification started
INSTANCE INSTC_12_01 DB configuration modified
INSTANCE INSTC_12_04 DB configuration modification failed
INSTANCE INSTC_13_01 Connected to floating IP
INSTANCE INSTC_14_01 Disconnected to floating IP
INSTANCE INSTC_15_00 DB instance replication started
INSTANCE INSTC_15_01 DB instance replicated
INSTANCE INSTC_15_04 DB instance replication failed
INSTANCE INSTC_16_00 DB instance promotion started
INSTANCE INSTC_16_01 DB instance promoted
INSTANCE INSTC_16_04 DB instance promotion failed
INSTANCE INSTC_21_01 DB instance normalized
INSTANCE INSTC_22_01 Insufficient DB instance storage
INSTANCE INSTC_23_01 DB instance connection failed
INSTANCE INSTC_24_00 Instance type modification started
INSTANCE INSTC_24_01 Instance type modified
INSTANCE INSTC_24_04 Instance type modification failed
INSTANCE INSTC_25_00 Storage expansion started
INSTANCE INSTC_25_01 Storage expanded
INSTANCE INSTC_25_04 Storage expansion failed
INSTANCE INSTC_26_00 failover occurred
INSTANCE INSTC_26_01 failover ended
INSTANCE INSTC_26_04 failover failed
INSTANCE INSTC_27_01 DB instance storage secured
INSTANCE INSTC_28_01 HA DB instance started
INSTANCE INSTC_29_01 HA DB instance stopped
INSTANCE INSTC_30_01 Replication stopped
INSTANCE INSTC_34_01 High availability suspended
INSTANCE INSTC_34_04 High availability suspension failed
INSTANCE INSTC_35_01 High availability restarted
INSTANCE INSTC_35_04 High availability restart failed
INSTANCE INSTC_36_01 Instance restart using failover
INSTANCE INSTC_36_04 Instance restart using failover failed
INSTANCE INSTC_37_01 DB User created
INSTANCE INSTC_37_04 DB user creation failed
INSTANCE INSTC_38_01 DB user updated
INSTANCE INSTC_38_04 DB user update failed
INSTANCE INSTC_39_01 DB user deleted
INSTANCE INSTC_40_01 DB schema created
INSTANCE INSTC_40_04 DB schema creation failed
INSTANCE INSTC_41_01 DB schema deleted
INSTANCE INSTC_47_00 DB instance backup and export started
INSTANCE INSTC_47_01 DB instance backed up and exported
INSTANCE INSTC_47_04 DB instance backup and export failed
INSTANCE INSTC_48_00 DB instance restoration using backup from the object storage started
INSTANCE INSTC_48_01 DB instance using backup from the object storage restored
INSTANCE INSTC_48_04 DB instance restoration using backup from the object storage failed
INSTANCE INSTC_49_00 DB instance force restart
INSTANCE INSTC_50_00 Backup export started
INSTANCE INSTC_50_01 Backup exported
INSTANCE INSTC_50_04 Backup export failed
INSTANCE INSTC_51_01 Backup failed due to user query latency
INSTANCE INSTC_52_01 Backup and export failed due to user query latency
BACKUP BACUP_02_01 Backup deleted
BACKUP BACUP_05_00 Backup export started
BACKUP BACUP_05_01 Backup exported
BACKUP BACUP_05_04 Backup export failed
BACKUP BACUP_06_01 Backup failed due to user query latency
TENANT TENAT_01_04 CPU cores limit
TENANT TENAT_02_04 RAM capacity limit
TENANT TENAT_03_04 Individual volume limit
TENANT TENAT_04_04 Total project volume limit
TENANT TENAT_05_04 Read-only slaves limit

Event Subscription

If subscribed to an event, a notification will be received via email and SMS when the event occurs. Notifications are sent to users of the user group subscribed to the event. Subscription can be subdivided by event type, event code, and event source. In order to temporarily stop the notifications, modify the enabled event subscription. If disabled, notifications are not sent.

Server Dashboard

The performance indicators can be visualized in charts in the server dashboard. Indicators are collected once every minute and retained for up to a year. The indicator data is aggregated as average values in units of 1 minute, 5 minutes, 30 minutes, 2 hours, and 1 day.


The layout must be first configured to view the chart. The layout consists of various charts and each chart location and size is saved. RDS for MariaDB provides two default layouts: default system index and default MySQL index. The user cannot modify nor delete the default layout.


Various performance indicators of DB instances can be viewed as charts. Each performance indicators consists of different chart forms. Below are the charts supported by RDS for MariaDB.

Chart Indicators (unit)
CPU usage cpu used (%)
CPU details cpu user (%)
cpu system (%)
cpu nice (%)
cpu IO wait(%)
Memory usage memory used (%)
Memory details memory used (bytes)
memory buffers (bytes)
memory cached (bytes)
memory free (bytes)
Swap usage swap used (bytes)
swap total (bytes)
Storage usage storage used (%)
Storage IO disk read (bytes)
disk write (bytes)
Network data transfer nic incoming (bytes)
nic outgoing (bytes)
CPU load average 1m
Queries Per Second qps
Connection total
Connection Ratio ratio (%)
Database Activity select
Buffer Pool buffer pool total (bytes)
buffer pool used (%)
Slow Query counts
Replication delay sec (seconds)
Row Access index
full scan

Notification Group

The notification group can receive notification regarding performance indicators. Specify which instances to monitor and the user group to be notified in the notification group. Set threshold and conditions for performance indicators to be notified through the monitoring settings. A notification is sent when the configured indicators meet the conditions of the monitoring setting. A notification is sent via SMS or email according to the configured notification type in the notification group,.

Monitoring Settings

The monitoring settings consist of items, comparison method, threshold, and duration. Duration is used when the threshold specified by the monitoring target is reached and when that duration is designated as a condition. For example, if the CPU usage threshold is over 90% for 5 minutes, the user in the user group is notified when the CPU usage rate of the server linked to the notification group is over 90% for over 5 minutes. If the CPU usage is over 90% but falls below 90% within 5 minutes, the notification is not sent.

User Group

Users who receive notifications can be managed in groups. The notification targets must be registered as project members. If the users in the user group are excluded from the project members, they will not be notified even if they belong in the user group.

[Caution] If there is no mobile phone information due to no user verification, SMS notifications cannot be received.