Observe Autonomous Database on Dedicated Exadata Infrastructure with Autonomous Database Metrics

You can observe the health, capacity, and performance of your Autonomous Databases with metrics, alarms, and notifications. You can use Oracle Cloud Infrastructure console or observability APIs to view metrics.

The Autonomous Database metrics help you measure useful quantitative data, such as CPU and storage utilization, the number of successful and failed database logon and connection attempts, database operations, SQL queries, and transactions, and so on. You can use metrics data to diagnose and troubleshoot problems with your Autonomous Database resources.

Related Topics

Prerequisites

To monitor resources, you must be given the required type of access in a policy written by an administrator, whether you're using the Console or the REST API with an SDK, CLI, or another tool.

You need the following policies to access the monitoring services and the resources being monitored:
Allow group <Group_Name>
to read metrics
in compartment <Compartment_Name>
Allow group <Group_Name>
to inspect work-requests
in compartment <Compartment_Name>

Tip:

If you try to perform an action and get a message that you don't have permission or are unauthorized, confirm with your administrator the type of access you've been granted and which compartment you should work in.

For common policies that give groups access to metrics, see Let users view metric definitions in a compartment and Restrict user access to a specific metric namespace.

For common policies that give groups access to Notifications, see Allow a group to manage topics, Allow a group to manage topic subscriptions, and Allow a group to publish messages to topics.

Using the Console

You can use Oracle Cloud Infrastructure console to:

Using the API

You can use the following APIs for monitoring:

For information about using the API and signing requests, see REST APIs and Security Credentials. For information about SDKs, see Software Development Kits and Command Line Interface.

Available Metrics: oci_autonomous_database

This topic describes the metrics emitted by the Database service in the oci_autonomous_database namespace.

Database service metrics for Autonomous Databases include the following dimensions:
  • AUTONOMOUSDBTYPE

    The type of Autonomous Database, Autonomous Data Warehouse (ADW) or Autonomous Transaction Processing (ATP).

  • deploymentType

    The Exadata infrastructure type, shared or dedicated. When using the Console to view default metric charts for multiple Autonomous Databases, you must specify this dimension.

  • DISPLAYNAME

    The friendly name of the Autonomous Database.

  • REGION

    The region in which the Autonomous Database resides.

  • RESOURCEID

    The OCID of the Autonomous Database.

  • RESOURCENAME

    The name of the Autonomous Database.

The metrics listed in the following table are automatically available for any Autonomous Database that you create. You do not need to enable monitoring on the resource to get these metrics.

Note:

Valid alarm intervals are 5 minutes or greater due to the frequency at which these metrics are emitted. See To create an alarm for details on creating alarms.

In the following table, metrics that are marked with an asterisk (*) can be viewed only on the Service Metrics page of the Oracle Cloud Infrastructure console. All metrics can be filtered by the dimensions described in this topic.

Metric Metric Display Name Unit Description Collection Frequency
ApplyLag

Apply Lag

seconds

This metric displays (in seconds) how far the standby database is behind the primary database as of the time sampled.

NA
BlockChanges

DB Block Changes

changes per second

The average number of blocks changed per second.

NA
CpuTime*

CPU Time

seconds per second

Average rate of accumulation of CPU time by foreground sessions in the database over the time interval.

Statistic: Mean

Interval: 1 minute

NA
CpuUtilization

CPU Utilization

percent

The CPU usage expressed as a percentage, aggregated across all consumer groups. The utilization percentage is reported with respect to the number of CPUs the database is allowed to use.

Statistic: Mean

Interval: 1 minute

NA
CurrentLogons*

Current Logons

count

The number of successful logons during the selected interval.

Statistic: Count

Interval: 1 minute

1 minute
DBTime*

DB Time

seconds per second

The amount of time database user sessions spend executing database code (CPU Time + WaitTime). DB Time is used to infer database call latency, because DB Time increases in direct proportion to both database call latency (response time) and call volume.

It is calculated as the average rate of accumulation of database time by foreground sessions in the database over the time interval.

Statistic: Mean

Interval: 1 minute

NA
ECPUsAllocated

ECPU Allocated

integer

The actual number of ECPUs allocated by the service during the selected interval of time.

NA
ExecuteCount

Execute Count

count

The number of user and recursive calls that executed SQL statements during the selected interval.

Statistic: Sum

Interval: 1 minute

NA
IOPS

IOPS

operations per second

The average number of I/O operations per second.

NA
IOThroughput

IO Throughput

MB per second

The average throughput in MB per second.

NA
LogicalBlocksRead

Logical Reads

reads per second

The average number of logical block reads ("db block gets" plus "consistent gets") per second. Includes buffered and direct I/O.

Statistic: Sum

Interval: 1 minute

NA
OCPUsAllocated

OCPU Allocated

integer

The actual number of OCPUs allocated by the service during the selected interval of time.

NA
ParsesByType

Parses By Type

parses per second

The number of hard or soft parses per second.

NA
ParseCount*

Parse Count (Total)

 count

The number of hard and soft parses during the selected interval.

Statistic: Sum

Interval: 1 minute

1 minute
QueuedStatements

Queued Statements

 count

The number of queued SQL statements, aggregated across all consumer groups, during the selected interval.

Statistic: Sum

Interval: 1 minute

NA
RedoSize

Redo Generated

MB per second

The Average amount of redo generated in MB per second.

NA
RunningStatements

Running Statements

 count

The number of running SQL statements, aggregated across all consumer groups, during the selected interval.

Statistic: Mean

Interval: 1 minute

1 minute
Sessions

Sessions

 count

The number of sessions in the database.

Statistic: Sum

Interval: 1 minute

1 minute
SessionUtilization

Session Utilization

Percent

The maximum session utilization expressed as a percentage, aggregated across all consumer groups.

Statistic: Mean

Interval: 1 minute

1 minute
StorageAllocated*

Storage Space Allocated

 GB

Maximum amount of space allocated to the database during the interval.

Statistic: Max

Interval: 1 hour

1 hour
StorageAllocatedByTablespace*

Allocated Storage Space By Tablespace

 GB

Maximum amount of space allocated for each tablespace during the interval.

NA
StorageUsed*

Maximum Storage Space

 GB

Maximum amount of space used during the interval.

Statistic: Max

Interval: 1 hour

1 hour
StorageUsedByTablespace*

Storage Space Used By Tablespace

 GB

Maximum amount of space used by each tablespace during the interval.

NA
StorageUtilization

Storage Utilization

 percent

The percentage of provisioned storage capacity currently in use.

Represents the total allocated space for all tablespaces.

Statistic: Mean

Interval: 1 hour

1 hour
StorageUtilizationByTablespace*

Storage Space Utilization By Tablespace

 percent

The percentage of space utilized by each tablespace.

NA
TransactionsByStatus

Transactions By Status

 transactions per second

The number of committed or rolled back transactions per second.

NA
TransactionCount*

Transaction Count

 count

The combined number of user commits and user rollbacks during the selected interval.

Statistic: Sum

Interval: 1 minute

1 minute
TransportLag

Transport Lag

 seconds

The approximate number of seconds of redo not yet available on the standby database as of the time sampled.

1 minute
UserCalls*

User Calls

 count

The combined number of logons, parses, and execute calls during the selected interval.

Statistic: Sum

Interval: 1 minute

1 minute
WaitTime*

Wait Time

 seconds per second

Average rate of accumulation of non-idle wait time by foreground sessions in the database over the time interval.

Statistic: Mean

Interval: 1 minute

1 minute