Available Metrics: oci_autonomous_database
This topic describes the metrics emitted by the Database service in the oci_autonomous_database namespace.
- 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.
This topic covers Oracle Autonomous Database Serverless metrics. See Monitor Databases with Autonomous Database Metrics for information on Oracle Autonomous Database on Dedicated Exadata Infrastructure metrics.
- 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.
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 |
|---|---|---|---|---|
ConnectionLatency |
Connection Latency |
Milliseconds |
The time taken to connect to an Oracle Autonomous Database Serverless instance in each region from a Compute service virtual machine in the same region. Statistic: Max Interval: 5 minutes |
5 minutes |
BlockingSessions |
Blocking Sessions |
count |
The number of current blocking sessions. Statistic: Max Interval: 1 minute |
1 minute |
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 |
DatabaseAvailability |
Database Availability |
count |
The database is available for connections in the given minute, with possible values:
Statistic: Mean Interval: 1 minute |
5 minutes |
DBBlockChanges |
DB Block Changes |
count |
The number of changes that were part of an update or delete operation that were made to all blocks in the SGA. Such changes generate redo log entries and become permanent changes to the database if the transaction is committed. This approximates total database work. This statistic indicates the rate at which buffers are being dirtied, during the selected time interval. Statistic: Sum 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 |
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 |
FailedConnections*
|
Failed Connections |
count |
The number of failed database connections. Statistic: Sum Interval: 1 minute |
1 minute |
FailedLogons |
Failed Logons |
count |
The number of log ons that failed because of an invalid user name and/or password, during the selected interval. The counter is reset to 0 by a successful login. Statistic: Mean Interval: 1 minute |
1 minute |
HardParseCount |
Parse Count (Hard) |
count |
The number of parse calls (real parses) during the selected time interval. A hard parse is an expensive operation in terms of memory use, because it requires Oracle to allocate a workheap and other memory structures and then build a parse tree. Statistic: Sum Interval: 1 minute |
1 minute |
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. |
1 minute |
ParseCount*
|
Parse Count (Total) |
count |
The number of hard and soft parses during the selected interval. Statistic: Sum Interval: 1 minute |
1 minute |
ParseFailureCount |
Parse Count (Failures) |
count |
The number of parse failures during the selected time interval. Statistic: Sum Interval: 1 minute |
1 minute |
PeerLag |
Peer Lag |
Seconds |
The total time in seconds by which the Disaster Recovery peer lags behind its Primary database. For a local Disaster Recovery peer, the metric is displayed under the Primary database. For a cross-region Disaster Recovery peer, this metric is displayed under the Disaster Recovery peer. Statistic: Max Interval: 1 minute |
1 minute |
PhysicalReads |
Physical Reads |
count |
The number of data blocks read from disk, during the selected time interval. Statistic: Sum Interval: 1 minute |
1 minute |
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 |
1 minute |
PhysicalWrites |
Physical Writes |
count |
The number of data blocks written to disk, during the selected time interval. Statistic: Sum Interval: 1 minute |
1 minute |
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 |
1 minute |
QueryLatency |
Query Latency |
Milliseconds |
The time taken to display the results of a simple query on the user's screen. Statistic: Max Interval: 5 minutes |
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 |
NA |
RedoGenerated |
Redo Generated |
count |
Amount of redo generated in bytes, during the selected time interval. Statistic: Sum Interval: 1 minute |
1 minute |
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 |
SQLNetBytesFromClient |
Bytes Received via SQL*Net 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 |
1 minute |
SQLNetBytesFromDBLink |
Bytes Received via SQL*Net 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 |
1 minute |
SQLNetBytesToClient |
Bytes Sent via SQL*Net 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 |
1 minute |
SQLNetBytesToDBLink |
Bytes Sent via SQL*Net to DBLink | count |
The number of bytes sent over a database link, during the selected time interval. Statistic: Sum Interval: 1 minute |
1 minute |
StorageAllocated*
|
Storage Space Allocated |
GB |
Amount of space allocated to the database for all tablespaces, during the interval. Statistic: Max Interval: 1 hour |
1 hour |
StorageMax |
Maximum Storage Space |
GB |
Maximum amount of storage reserved for the database during the interval. Statistic: Max Interval: 1 hour |
1 hour |
StorageUsed*
|
Storage Space Used |
GB |
Maximum amount of space used during the interval. Statistic: Max Interval: 1 hour |
1 hour |
StorageUtilization |
Storage Utilization |
percent | The percentage of the reserved maximum storage currently allocated for all database tablespaces.
Represents the total reserved space for all tablespaces. Statistic: Mean Interval: 1 hour |
1 hour |
TransactionCount*
|
Transaction Count |
count |
The combined number of user commits and user rollbacks during the selected interval. Statistic: Sum Interval: 1 minute |
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 |
UserCommits |
User Commits |
count |
The number of user commits during the selected time interval. When a user commits a transaction, the generated redo that reflects the changes made to database blocks must be written to disk. Commits often represent the closest thing to a user transaction rate. Statistic: Sum Interval: 1 minute |
1 minute |
UserRollbacks |
User Rollbacks |
count |
Number of times users manually issue the 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 |
Parent topic: Monitor and Manage Performance