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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-01
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V$BUFFERED_PUBLISHERS

V$BUFFERED_PUBLISHERS displays information about all buffered publishers in the instance. There is one row per queue per sender. The values are reset to zero when the database (or instance in a Real Application Clusters (RAC ) environment) restarts.

Column Datatype Description
QUEUE_ID NUMBER Identifier for the queue
QUEUE_SCHEMA VARCHAR2(30) Owner of the queue
QUEUE_NAME VARCHAR2(30) Name of the queue
SENDER_NAME VARCHAR2(30) Name of the agent enqueuing the message (the Streams name assigned for a capture process)
SENDER_ADDRESS VARCHAR2(1024) Queue name and database name of the source (last propagating) queue; database name is not specified if the source queue is in the local database
SENDER_PROTOCOL NUMBER Protocol used by the sender's address
NUM_MSGS NUMBER Current number of messages that have yet to be dequeued from the buffer queue
CNUM_MSGS NUMBER Cumulative total number of messages enqueued into the buffered queue since the database last started (comparable to V$STREAMS_CAPTURE total_enqueued_messages
LAST_ENQUEUED_MSG NUMBER Most recently enqueued message identifier
UNBROWSED_MSGS NUMBER The count of messages that have been enqueued, but now browsed
OVERSPILLED_MSGS NUMBER The count of messages that have been spilled, but not browsed
MEMORY_USAGE NUMBER The percentage of the streams pool that is being used (or 0 if there is no streams pool)
PUBLISHER_STATE VARCHAR2(59) State of the publisher. Possible values are:
  • PUBLISHING MESSAGES (normal)

  • IN FLOW CONTROL: TOO MANY UNBROWSED MESSAGES

  • IN FLOW CONTROL: OVERSPILLED MESSAGES

  • IN FLOW CONTROL: INSUFFICIENT MEMORY AND UNBROWSED MESSAGES