5.68 DBA_HIST_STREAMS_APPLY_SUM

DBA_HIST_STREAMS_APPLY_SUM displays information about each apply process and its activities.

This view contains a snapshot of V$STREAMS_APPLY_COORDINATOR, V$STREAMS_APPLY_READER, and V$STREAMS_APPLY_SERVER. This view is intended for use with Automatic Workload Repository (AWR).

Column	Datatype	NULL	Description
SNAP_ID	NUMBER	NOT NULL	Unique snapshot ID
DBID	NUMBER	NOT NULL	Database ID for the snapshot
INSTANCE_NUMBER	NUMBER	NOT NULL	Instance number for the snapshot
APPLY_NAME	VARCHAR2(128)	NOT NULL	Name of the apply process
STARTUP_TIME	DATE	NOT NULL	Time that the apply process was last started
READER_TOTAL_MESSAGES_DEQUEUED	NUMBER		Total number of messages dequeued since the apply process was last started
READER_LAG	NUMBER		For captured messages, the delay (in seconds) between the creation of the last message and it being received by the apply process. For user enqueued messages, the delay between the message being enqueued in the local database and being received by the apply process.
COORD_TOTAL_RECEIVED	NUMBER		Total number of transactions received by the coordinator process since the apply process was last started
COORD_TOTAL_APPLIED	NUMBER		Total number of transactions applied by the apply process since the apply process was last started
COORD_TOTAL_ROLLBACKS	NUMBER		Number of transactions which were rolled back due to unexpected contention
COORD_TOTAL_WAIT_DEPS	NUMBER		Number of times since the apply process was last started that an apply server waited to apply a logical change record (LCR) in a transaction until another apply server applied a transaction because of a dependency between the transactions
COORD_TOTAL_WAIT_CMTS	NUMBER		Number of times since the apply process was last started that an apply server waited to commit a transaction until another apply server committed a transaction to serialize commits
COORD_LWM_LAG	NUMBER		For captured messages, the delay (in seconds) between the creation of the message corresponding to the low watermark and it being applied by the apply process. For user enqueued messages, the delay between the message being enqueued in the local database and being applied by the apply process.
SERVER_TOTAL_MESSAGES_APPLIED	NUMBER		Total number of messages applied by all the apply servers since the apply process was last started
SERVER_ELAPSED_DEQUEUE_TIME	NUMBER		Time elapsed (in hundredths of a second) dequeuing messages by all the apply servers since the apply process was last started
SERVER_ELAPSED_APPLY_TIME	NUMBER		Time elapsed (in hundredths of a second) applying messages by all the apply servers since the apply process was last started
CON_DBID	NUMBER		The database ID of the PDB for the sampled session
CON_ID	NUMBER		The ID of the container that CON_DBID identifies. Possible values include: 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. 1: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data

See Also:

• "V$STREAMS_APPLY_COORDINATOR"

• "V$STREAMS_APPLY_READER"

• "V$STREAMS_APPLY_SERVER"