V$PROPAGATION_RECEIVER

V$PROPAGATION_RECEIVER displays information about buffer queue propagation schedules on the receiving (destination) side. The values are reset to zero when the database (or instance in an Oracle Real Application Clusters (Oracle RAC) environment) restarts, when propagation migrates to another instance, or when an unscheduled propagation is attempted.

Column Datatype Description

SRC_QUEUE_SCHEMA

VARCHAR2(30)

Name of the source schema

SRC_QUEUE_NAME

VARCHAR2(30)

Name of the source queue

SRC_DBNAME

VARCHAR2(128)

Name of the source database

DST_QUEUE_SCHEMA

VARCHAR2(30)

Name of the destination schema

DST_QUEUE_NAME

VARCHAR2(30)

Name of the destination queue

STARTUP_TIME

DATE

Startup time of this schedule. This time changes when the source/destination database gets restarted.

HIGH_WATER_MARK

NUMBER

High watermark of the messages received

ACKNOWLEDGEMENT

NUMBER

Acknowledgement of the messages received by the receiver

LAST_RECEIVED_MSG

NUMBER

Last received message

TOTAL_MSGS

NUMBER

Total number of messages

ELAPSED_UNPICKLE_TIME

NUMBER

Elapsed unpickle time

ELAPSED_RULE_TIME

NUMBER

Elapsed rule time

ELAPSED_ENQUEUE_TIME

NUMBER

Elapsed enqueue time

SESSION_ID

NUMBER

Session ID of the propagation receiver

SERIAL#

NUMBER

Serial number of the propagation receiver

SPID

VARCHAR2(24)

Process identification number of the propagation receiver

PROPAGATION_NAME

VARCHAR2(30)

Name of the Streams propagation on the source database

STATE

VARCHAR2(43)

State of the propagation receiver:

  • Initializing

  • Sending unapplied txns

  • Waiting for message from client

  • Receiving LCRs

  • Evaluating rules

  • Enqueueing LCRS

  • Waiting for memory

  • Waiting for apply to read

  • Waiting for message from propagation sender

When the propagation schedule is not optimized, the state is Normal.

LAST_RECEIVED_MSG_POSITION

RAW(64)

Last received message position. Corresponds to LAST_RECEIVED_MSG, except the value is in position rather than SCN. Position is used by XStream to determine ordering.

ACKNOWLEDGEMENT_POSITION

RAW(64)

Acknowledgement position of the messages received by the receiver. Corresponds to ACKNOWLEDGEMENT, except the value is in position rather than SCN. Position is used by XStream to determine ordering.

CON_ID

NUMBER

The ID of the container to which the data pertains. 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