description: Use the V$TRUE_CACHE_INFO view to monitor True Cache-related information. —

Monitoring True Cache with the V$TRUE_CACHE_INFO View

Use the V$TRUE_CACHE_INFO view to review messages about True Cache and redo transport operations.

This information has been migrated from V$DATAGUARD_STATUS to V$TRUE_CACHE_INFO.

To view the messages, enter the following query:

SELECT * FROM v$true_cache_info;

The following example shows the output format. The messages, message numbers, and timestamps vary by configuration and activity.

SEVERITY      DEST_ID MESSAGE_NUM ERROR_CODE TIMESTAMP          MESSAGE                               CON_ID
------------- ------- ----------- ---------- ------------------ ------------------------------------  ------
Informational       2           1          0 01-SEP-26 12:00:00 Redo transport to True Cache started       0

V$TRUE_CACHE_INFO Columns

The following table describes the columns in the V$TRUE_CACHE_INFO view.

Column Datatype Description
SEVERITY VARCHAR2(13) The severity of the event: Informational, Warning, Error, Fatal, or Control.
DEST_ID NUMBER The destination ID to which the event pertains, or 0 when the event does not pertain to a destination.
MESSAGE_NUM NUMBER A chronologically increasing number that uniquely identifies the event.
ERROR_CODE NUMBER The error ID associated with the event.
TIMESTAMP DATE The message date.
MESSAGE VARCHAR2(256) Text that describes the event.
CON_ID NUMBER The ID of the container to which the data pertains. A value of 0 applies to the entire CDB or a non-CDB, 1 applies to the root, and any other value identifies the applicable container.