Register Oracle databases

You can register databases and geodatabases in Oracle to collect metrics and attribute information.

Prerequisites for monitoring

The following prerequisites are necessary for monitoring databases and geodatabases in Oracle:

• ArcGIS Monitor Agent must be installed on a machine that has access to the Oracle machine and must be registered with ArcGIS Monitor Server.

  When access to the Oracle machine is available, it is recommended that you install Monitor Agent on that machine to collect operating system metrics.

• Oracle 19c (64 bit) is the only version supported for monitoring. The Oracle 19c (64 bit) 19.3.0.0 patch version is the minimum certified version. Newer Oracle 19c updates to this version, including patches, are supported but are not certified unless otherwise stated.

  Note:

  Client drivers are included with the Monitor software.

• When Monitor Agent is not installed on the Oracle machine, the firewall must allow communication between Oracle and the ArcGIS Monitor machine on port 1521.

  Note:

  If Oracle is configured to run on a different port, communication must be allowed on that port instead.

• The ST_Geometry type must be added to the Oracle database to enable monitoring.
• The Oracle user account that you use to register the database for monitoring must have the following read permissions to collect attribute and metric data:
  • SDE system tables (if applicable)
  • v$instance
  • v$session
  • v$sesstat
  • v$sga
  • v$statname
  • v$sysmetric_history
  • DUAL
• The Oracle user account must be configured to use password version 11G or later.

  Tip:

  To view password verifiers for DBA_USERS, run the following query: SELECT USERNAME, PASSWORD_VERSIONS FROM DBA_USERS;.

  Caution:

  It is recommended that you grant only read permissions to the Oracle user account to prevent custom database queries from altering the database.

Register databases for monitoring

You must be assigned the Administrator or Manager role to register components.

To register databases and geodatabases in Oracle, complete the following steps:

1. Access ArcGIS Monitor if necessary.

   The Home page appears.

2. Click Monitoring.

   The Monitoring page appears with registered components listed alphabetically by name.

3. Click Register component.

   The Register component wizard appears.

   Note:

   If you don't have sufficient privileges, Register component is not available.

4. Choose the Monitor Agent machine where the component is installed, and click Next.

   If Monitor Agent cannot be installed on the machine, choose a Monitor Agent machine that has access to the database instead.

   The Component type page appears.

5. Under Database, choose Oracle, and click Next.

   The Component details page appears.

6. Provide a name for the component in the Component name text box.
7. Optionally, provide a description for the component in the Description text box.
8. Optionally, click Apply Labels and choose the labels that you want to apply to the component.

   Tip:

   Provide the name of a label in the Enter label name text box to search for a specific label. If the label doesn't exist, click Create new label to add the label and apply it to the component.

9. Click Next.

   The Connection page appears.

10. Provide the fully qualified domain name or IP address and port number of the database instance that you want to register in the Address text box.

    The default port number for Oracle is 1521.

11. Provide the service name of the database that you want to register in the Service name text box.
12. Provide the credentials for the database in the Username and Password text boxes.
13. If the database requires encrypted connections, check the Require encryption check box.
14. Click Register component.

    The component is added to the list of monitored components on the Monitoring page.

Once a component is registered, you can configure alert rules and add the component to collections.

Note:

Other component types, such as the enterprise GIS implementation's underlying hardware infrastructure and ArcGIS software, must be registered individually to enable monitoring.

Observers

The following table describes the observers that collect attribute and metric data:

Observer name	Description
Database Query	This optional, user-configured observer runs a SQL query on the registered Oracle database and returns a single numeric value.
Inventory - Database Oracle	This observer scans for changes and manages attribute data and component relationships across the registered Oracle database. It also detects enterprise geodatabase schemas to enable related metrics. The default interval for this observer is 10 minutes; however, you can configure it to run at longer intervals since changes to the database configuration are typically infrequent.
Metrics - Database Oracle	This observer collects metric data across the registered Oracle database. If no enterprise geodatabase schema is detected by the Inventory observer, no geodatabase-related metrics are collected. The default interval for this observer is 1 minute; however, you can configure it to run at longer intervals since significant database variations are typically infrequent.

Collected attributes

The subsections below describe the attributes that are collected for registered databases and geodatabases in Oracle.

Database attributes

The following table lists the attributes that are collected for databases in Oracle:

Attribute name	Description	Data type
Connections max	The maximum number of connections	Integer
Last backup at	The date and time the database was last backed up	Datetime
Memory total	The total amount of system global area (SGA) memory for the database instance	Float
Started at	The last start time of the database instance	Datetime
System mode	Specifies the state of the system as it is configured in Oracle: Read Read Write	String
UTC offset	The UTC time zone offset for the database instance	Integer
Version	The software version of the Oracle instance	String

Geodatabase attributes

The following table lists the attribute that is collected for geodatabases in Oracle:

Attribute name	Description	Data type
Geodatabase version	The version of the enterprise geodatabase	String

Geodatabase dataset attributes

The following table lists the attributes that are collected for geodatabase datasets:

Attribute name	Description	Data type
Geometry type	Specifies the geometry type of the dataset: Line Point Polygon - (None)	String
Is archived	Specifies whether the dataset is archived: No Yes	String
Versioned type	Specifies the dataset's versioned type: Branched Traditional - (None)	String

Collected metrics

The subsections below describe the metrics that are collected for registered databases and geodatabases in Oracle.

Database metrics

The following table lists the metrics that are collected for databases in Oracle:

Metric name	Description	Data type	Unit
Cache Hit	The percentage of requests served from the cache, as opposed to requests served from disk	Float	Percent
Connectivity	The agent's ability to successfully connect to the component	Float	Percent
Database Connections	The total number of database connections in use	Float	Total
Database Connections Utilized	The proportion of database connections in use	Float	Percent
Database Sessions	The number of open sessions in the database	Float	Total
Open Cursors	The number of open cursors in the database	Float	Total
Storage Used	The total amount of storage used	Float	Total

Geodatabase metrics

The following table lists the metrics that are collected for geodatabases in Oracle:

Metric name	Description	Data type	Unit
Datasets	The total number of datasets	Float	Total
GDB Branch Version Conflicts	The total number of branch version conflicts in the geodatabase	Float	Total
GDB Branch Version Locks	The total number of locks on branch versions in the geodatabase	Float	Total
GDB Branch Versions	The total number of branch versions in the geodatabase	Float	Total
GDB Connections	The total number of active connections to the geodatabase	Float	Total
GDB Connections - editors	The total number of active editor connections to the geodatabase	Float	Total
GDB Connections - viewers	The total number of active viewer connections to the geodatabase	Float	Total
GDB Default Version Depth	The depth in the state tree of the default version	Float	Total
GDB Shared Locks	The total number of shared table locks in the geodatabase	Float	Total
GDB State Lineages	The total number of edits in the geodatabase for datasets that use traditional versioning	Float	Total
GDB Version States	The total number of states in the geodatabase for datasets that use traditional versioning	Float	Total
GDB Versions	The total number of versions in the geodatabase that use traditional versioning	Float	Total
Rows Total	The total number of rows	Float	Total
Storage Used	The total amount of storage used	Float	Total

Geodatabase dataset metrics

The following table lists the metrics that are collected for geodatabase datasets in Oracle:

Metric name	Description	Data type	Unit
Rows Total	The total number of rows	Float	Total
Storage Used	The total amount of storage used	Float	Total

Note:

To minimize performance impacts on monitored geodatabases, Monitor uses the database's statistics capability to collect dataset metrics. The accuracy of the metrics may diverge as statistics become obsolete and need to be recalculated.

Optional metrics

The following table lists the optional metric that can be collected by configuring the Database Query observer:

Metric name	Description	Data type	Unit
Database Query - <observer_name>	The response of the SQL query	Float	Total

Enable optional metrics

To enable optional metrics for Oracle databases and geodatabases, complete the following steps:

1. Access ArcGIS Monitor if necessary.

   The Home page appears.

2. Click Monitoring.

   The Monitoring page appears with registered components listed alphabetically by component name.

3. Click the name of the Oracle database or geodatabase component for which you want to enable optional metrics.

   The database's Overview page appears with its details and an overview of its metrics.

   Tip:

   Type a keyword in the Search by component name or address text box to search for specific components and subcomponents.

4. Click the Observers tab.

   The Observers page appears.

5. Click Add observer.

   The Add observer dialog box appears.

6. Choose Database Query, and click Next.

   The Observer details page appears.

7. Provide a name for the observer in the Observer name text box.

   The observer name is used to identify the observer, and all metrics associated with the observer are prefixed with the observer name. For example, if the observer name is Health Check, the name of its metrics would be <MetricName> - health_check.

8. Optionally, provide a description for the observer in the Description text box.
9. Click Next.

   The Configuration page appears.

10. Click the Interval drop-down arrow, and choose an interval.
11. Provide an SQL query that returns a single numeric value in the Query text box.

    The following is an example query that returns the number of days since the database was last backed up:

    SELECT ROUND(SYSDATE - MAX(completion_time)) AS last_backup_days
    FROM v$backup_set
    WHERE backup_type IN ('I', 'D');

    Note:

    The observer inherits the credentials of the associated Oracle database or geodatabase component.

12. Click Test to validate the SQL query.

    The result of the test appears in the Results section.

13. Click Add observer.

    The observer is added to the list of observers on the Observers page.

    Note:

    The Add observer button is only available when the SQL query test result is successful.

Optional metrics are collected and automatically appear in Monitor according to the observer's configured interval.

Default alert rules

The following table lists the default alert rules that are configured for databases in Oracle:

Metric name	Aggregation	Operator	Info threshold	Warning threshold	Critical threshold	Samples
Cache Hit	Average	Is less than	90	—	—	3
Connectivity	Average	Is less than	—	—	100	2

Note:

The default alert rules in the table above are configured for components when Monitor is first deployed. If your Monitor administrator configured default alert rules for the Monitor deployment, the values for the rules above may vary.

Component relationships

The subsections below describe the relationships that are formed with registered Oracle database components.

Geodatabase datasets

The inventory observer for Oracle databases detects only datasets in a geodatabase and forms individual relationships between the Oracle database component and its datasets. When registered with a monitored ArcGIS Server site, the ArcGIS Server inventory observer discovers and manages relationships between its services and the database's datasets.

Note:

If the Data Store component is unregistered in Monitor, its datasets are also unregistered.

Host

A host's inventory observer detects instances of Oracle running on the host machine, and a relationship is formed between the host component and the registered Oracle database component.

Note:

Host relationships for remotely monitored databases cannot be formed as the host is unavailable for monitoring.

ArcGIS Server

When an Oracle database is registered with a monitored ArcGIS Server site, the ArcGIS Server inventory observer discovers and manages relationships between the ArcGIS Server site and the Oracle database component.

Note:

If the Oracle database component is unregistered in Monitor, the relationship between the ArcGIS Server site and Oracle database component is removed.