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.

Statistic: Mean

Interval: 5 minutes

5 minutes
BlockChanges

DB Block Changes

changes per second

The average number of blocks changed per second.

Statistic: Mean

Interval: 1 minute

5 minutes
BlockingSessions

Blocking Sessions Count

count

The number of sessions that have been blocking other sessions for more than 60 seconds.

Statistic: Max

Interval: 1 minute

5 minutes
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

5 minutes
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

5 minutes
CurrentLogons*

Current Logons

count

The number of successful logons during the selected interval.

Statistic: Sum

Interval: 1 minute

5 minutes
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 (CPU + Wait) by foreground sessions in the database over the time interval. It is also known as Average Active Sessions.

5 minutes
ECPUsAllocated

ECPUs Allocated

count

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

Statistic: Count

Interval: 5 minutes

5 minutes
ExecuteCount

Execute Count

count

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

Statistic: Sum

Interval: 1 minute

5 minutes
HardParseCount

Parse Count (Hard)

count

Currently allocated CPUs count.

Statistic: Sum

Interval: 1 minute

5 minutes
IOPS

IOPS

operations per second

The average number of I/O operations per second.

Statistic: Mean

Interval: 1 minute

5 minutes
IOThroughput

IO Throughput

MB per second

The average throughput in MB per second.

Statistic: Mean

Interval: 1 minute

5 minutes
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: Mean

Interval: 1 minute

5 minutes
LogicalReads

Session Logical Reads

count

The sum of "db block gets" plus "consistent gets", during the selected time interval. This includes logical reads of database blocks from either the buffer cache or process private memory.

Statistic: Sum

Interval: 1 minute

5 minutes
OCPUsAllocated

OCPU Allocated

integer

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

Statistic: Count

Interval: 1 minute

5 minutes
ParsesByType

Parses By Type

parses per second

The number of hard or soft parses per second.

Statistic: Mean

Interval: 1 minute

5 minutes
ParseCount*

Parse Count (Total)

count

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

Statistic: Sum

Interval: 1 minute

5 minutes
ParseFailureCount

Parse Failures Count

count

The number of parse failures during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
PhysicalReads

Physical Reads

count

The number of data blocks read from disk, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
PhysicalReadTotalBytes

Physical Read Total Bytes

count

The size in bytes of disk reads by all database instance activity including application reads, backup and recovery, and other utilities, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
PhysicalWrites

Physical Writes

count

The number of data blocks written to disk, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
PhysicalWriteTotalBytes

Physical Write Total Bytes

count

The size in bytes of all disk writes for the database instance including application activity, backup and recovery, and other utilities, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
QueuedStatements

Queued Statements

count

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

Statistic: Sum

Interval: 1 minute

5 minutes
RedoGenerated

Redo Generated

count

Amount of redo generated in bytes, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
RedoSize

Redo Generated

MB per second

The Average amount of redo generated in MB per second.

Statistic: Mean

Interval: 1 minute

5 minutes
RunningStatements Running Statements

count

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

Statistic: Sum

Interval: 1 minute

5 minutes
Sessions

Sessions

count

The number of sessions in the database.

Statistic: Sum

Interval: 1 minute

5 minutes
SessionUtilization

Session Utilization

Percent

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

Statistic: Mean

Interval: 1 minute

5 minutes
SQLNetBytesFromClient

SQL Net Bytes Received from Client

count

The number of bytes received from the client over Oracle Net Services, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
SQLNetBytesFromDBLink

SQL Net Bytes Received from DBlink

count

The number of bytes received from a database link over Oracle Net Services, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
SQLNetBytesToClient

SQL Net Bytes Sent to Client

count

The number of bytes sent to the client from the foreground processes, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
SQLNetBytesToDBLink

SQL Net Bytes Sent to DBlink

count

The number of bytes sent over a database link, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
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.

Statistic: Max

Interval: 1 hour

1 hour
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.

1 hour
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.

Statistic: Mean

Interval: 1 hour

1 hour
TransactionsByStatus

Transactions By Status

transactions per second

The number of committed or rolled back transactions per second.

Statistic: Mean

Interval: 1 minute

5 minutes
TransactionCount*

Transaction Count

count

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

Statistic: Sum

Interval: 1 minute

5 minutes
TransportLag

Transport Lag

 seconds

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

Statistic: Mean

Interval: 5 minutes

5 minutes
UserCalls*

User Calls

count

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

Statistic: Sum

Interval: 1 minute

5 minutes
UserCommits

User Commits

count

The number of user commits during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
UserRollbacks

User Rollbacks

count

Number of times users manually issue the ROLLBACK statement or an error occurs during a user's transactions, during the selected time interval.

Statistic: Sum

Interval: 1 minute

5 minutes
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. The wait time component of Average Active Sessions.

Statistic: Mean

Interval: 1 minute

5 minutes