7.13 V$AQ_CROSS_INSTANCE_JOBS

V$AQ_CROSS_INSTANCE_JOBS describes each of the cross process jobs.

Each job serves to forward messages for a shard from a source instance to a destination instance for a set of subscribers of a sharded queue.

Column Datatype Description

JOB_ID

NUMBER

Job ID within this coordinator

SCHEMA_NAME

VARCHAR2(128)

Source schema of the job

QUEUE_NAME

VARCHAR2(128)

Source queue name of the cross job

SHARD_ID

NUMBER

Source shard ID

START_SUBSHARD_ID

NUMBER

Start subshard ID of the job

DESTINATION_INSTANCE_ID

NUMBER

Destination instance of the cross job

COORDINATOR_ID

NUMBER

Index of the coordinator serving the job

DEST_SERVER_PROCESS_ID

NUMBER

Process ID of the destination server

JOB_STATE

VARCHAR2(28)

State of the job:

  • REQUESTED

  • RUNNING

  • STOPPED

  • PAUSED

  • CRASHED

  • INACTIVE

FLOW_CONTROL

NUMBER

Indicates whether the job is flow controlled:

  • 0 - The job is not flow controlled

  • 1 - The job is flow controlled

MSGS_SENT

NUMBER

Messages sent during the job

BYTES_SENT

NUMBER

Bytes sent during the job

ACK_LATENCY

NUMBER

Latency for receiving ACK for the job

JOB_TYPE

VARCHAR2(26)

Cross instance job type. Values:

  • CROSS_STREAM

    : This job type is responsible for forwarding a shard from its owner instance to a destination dequeue instance for all subscribers performing dequeue from that shard at the destination dequeue instance.

  • DEQUEUE_AFFINITY_TO_REMOTE: This job type is responsible for switching a subscriber's dequeue affinity from a shard's owner instance to a remote dequeue instance.

  • DEQUEUE_AFFINITY_TO_LOCAL: This job type is responsible for switching back a subscriber's dequeue affinity from a remote dequeue instance to a shard's owner instance.

PRIORITY0_CROSS_LWM

NUMBER

Last priority 0 subshard received at DESTINATION_INSTANCE_ID

PRIORITY1_CROSS_LWM

NUMBER

Last priority 1 subshard received at DESTINATION_INSTANCE_ID

PRIORITY2_CROSS_LWM

NUMBER

Last priority 2 subshard received at DESTINATION_INSTANCE_ID

PRIORITY3_CROSS_LWM

NUMBER

Last priority 3 subshard received at DESTINATION_INSTANCE_ID

PRIORITY4_CROSS_LWM

NUMBER

Last priority 4 subshard received at DESTINATION_INSTANCE_ID

PRIORITY5_CROSS_LWM

NUMBER

Last priority 5 subshard received at DESTINATION_INSTANCE_ID

PRIORITY6_CROSS_LWM

NUMBER

Last priority 6 subshard received at DESTINATION_INSTANCE_ID

PRIORITY7_CROSS_LWM

NUMBER

Last priority 7 subshard received at DESTINATION_INSTANCE_ID

PRIORITY8_CROSS_LWM

NUMBER

Last priority 8 subshard received at DESTINATION_INSTANCE_ID

PRIORITY9_CROSS_LWM

NUMBER

Last priority 9 subshard received at DESTINATION_INSTANCE_ID

JOB_START_TIME

TIMESTAMP(3) WITH TIME ZONE

Start time of this job

SUBSCRIBER_ID

NUMBER

Subscriber ID whose affinity is being switched for the DEQUEUE_AFFINITY_TO_REMOTE and DEQUEUE_AFFINITY_TO_LOCAL job types

SUBSCRIBER_NAME

VARCHAR2(512)

Subscriber name whose affinity is being switched for the DEQUEUE_AFFINITY_TO_REMOTE and DEQUEUE_AFFINITY_TO_LOCAL job types. This column is NULL for the CROSS_STREAM job type.

OWNER_INSTANCE_ID

NUMBER

Owner instance of the shard

QUEUE_ID

NUMBER

Queue ID

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

See Also:

Oracle Database Advanced Queuing User's Guide for more information about Oracle Database Advanced Queueing