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Queue [Settings]

A queue for point-to-point messaging.

To view this page in the console, click the following path:

  • Service integration -> Buses -> bus_name -> [Destination resources] Destinations -> queue_name.


    Configuration tab

    The Configuration tab shows configuration properties for this object. These property values are preserved even if the runtime environment is stopped then restarted. See the information center task descriptions for information about how to apply configuration changes to the runtime environment.


    General Properties

    Identifier

    The identifier by which this destination is known for administrative purposes.

    Do not use an underscore character "_" as the first character, because this naming convention is reserved for system use.

    We can use a naming convention to suggest a hierarchical structure for destinations; for example, by using dotted notation for a destination name Library.Shelf.Book1A. Such structure can be useful for organizing queues into logical groups for ease of association, and to permit the use of wildcard notation in filters; for example, Library.Shelf.* or *.Queue.accountXYZ.

    Information Value
    Required No
    Data type String

    UUID

    The universal unique identifier assigned by the system to this destination for administrative purposes.

    Information Value
    Required No
    Data type String

    Type

    Whether this bus destination is for a queue, topic space, or some other type of destination.

    A queue for point-to-point messaging.

    Information Value
    Required No
    Data type String

    Description

    An optional description for the bus destination, for administrative purposes.

    Information Value
    Required No
    Data type Text area

    Mediation

    The name of the mediation that mediates this destination.

    Information Value
    Required No
    Data type String

    Enable producers to override default reliability

    Select this option to enable producers to override the default reliability set on the destination.

    Information Value
    Required No
    Data type Boolean

    Default reliability

    The reliability assigned to a message produced to this destination when an explicit reliability has not been set by the producer.

    Information Value
    Required No
    Data type drop-down list
    Range

    Best effort nonpersistent

    Messages are discarded when a messaging engine stops or fails. Messages might also be discarded if a connection used to send them becomes unavailable or as a result of constrained system resources.

    Express nonpersistent

    Messages are discarded when a messaging engine stops or fails. Messages might also be discarded if a connection used to send them becomes unavailable.

    Reliable nonpersistent

    Messages are discarded when a messaging engine stops or fails.

    Reliable persistent

    Messages might be discarded when a messaging engine fails.

    Assured persistent

    Messages are not discarded.

    Maximum reliability

    The maximum reliability of messages accepted by this destination.

    Information Value
    Required No
    Data type drop-down list
    Range

    Best effort nonpersistent

    Messages are discarded when a messaging engine stops or fails. Messages might also be discarded if a connection used to send them becomes unavailable or as a result of constrained system resources.

    Express nonpersistent

    Messages are discarded when a messaging engine stops or fails. Messages might also be discarded if a connection used to send them becomes unavailable.

    Reliable nonpersistent

    Messages are discarded when a messaging engine stops or fails.

    Reliable persistent

    Messages might be discarded when a messaging engine fails.

    Assured persistent

    Messages are not discarded.

    Default priority

    The default priority assigned to messages sent to this destination when a priority has not been set by the producer.

    Information Value
    Required No
    Data type Integer
    Range 0 through 9

    Exception destination

    Use these properties to define what happens to any messages that cannot be delivered to this destination.

    None

    The bus destination does not use an exception destination and undeliverable messages are not rerouted to an exception destination.

    Attempts to redeliver the message continue, up to the maximum failed deliveries limit set for the bus destination. Then, attempts to redeliver the message continue with a time interval between retry attempts. This interval is either the Default blocked destination retry interval of the messaging engine that is associated with this destination, or the Blocked retry timeout set for this destination. The Default blocked destination retry interval value can be used by all queue and topic destinations associated with this messaging engine. To set a time interval specifically for this destination, select Override messaging engine blocked retry timeout default, then enter a blocked retry timeout value for this destination.

    Information Value
    Required No
    Data type Radio button
    Default Not selected

    Override messaging engine blocked retry timeout default

    Override the blocked queue retry interval configured on the messaging engine owning the destination.

    Select this property to set the blocked retry timeout for this destination. This property is available only when None is selected for the exception destination.

    Information Value
    Required Yes, if None is selected.
    Data type Boolean
    Default Unchecked. The Default blocked destination retry interval value of the associated messaging engine is used.

    Blocked retry timeout in milliseconds

    When no exception destination is configured, the time interval to apply between retry attempts, after the maximum failed deliveries limit is reached, for this destination.

    This property is available only when Override messaging engine blocked retry timeout default is selected in the exception destination properties.

    Information Value
    Required Yes, if Override messaging engine blocked retry timeout default is checked.
    Data type Integer

    System

    The bus destination uses the system default exception destination.

    Undeliverable messages are routed to the system default exception destination of the messaging engine that detects the problem: _SYSTEM.Exception.Destination.messaging_engine_name.

    Information Value
    Required No
    Data type Radio button
    Default Selected

    Specify

    The bus destination uses the exception destination specified in this field.

    The exception destination must be a queue, on the same bus or a foreign bus, and must exist when the exception destination processing is configured.

    Information Value
    Required No
    Data type Radio button
    Default Not selected

    Maximum failed deliveries per message

    The maximum number of failed attempts to process a message. After this number of failed attempts, if an exception destination is configured, the message is forwarded from the intended destination to its exception destination. If an exception destination is not configured, a time interval between retry attempts is applied.

    This interval is either the Default blocked destination retry interval of the messaging engine that is associated with this destination, or the Blocked retry timeout set for this destination.

    Information Value
    Required Yes, if an exception destination has been configured.
    Data type Integer
    Default 5
    Range 0 through 2147483647

    Keep count of failed deliveries per message

    This option persists the failed delivery counts of the messages in the message store.

    Persist the failed delivery counts of JMS messages in the message store. This option retains the count of failed deliveries even after the messaging engine is restarted.

    Information Value
    Required No
    Data type Boolean
    Default Not selected

    When the option is not selected, the history of the failed delivery counts for the messages will be lost if the messaging engine is restarted.

    Important: Although the property is selected, the property will not be effective until the database tables are upgraded using the sibDBUpgrade command for WebSphere Application Server v8.5 and later.

    Send allowed

    Clear this option (setting it to false) to stop producers from being able to send messages to this destination.

    Information Value
    Required No
    Data type Boolean

    Receive allowed

    Clear this option (setting it to false) to prevent consumers from being able to receive messages from this destination.

    Information Value
    Required No
    Data type Boolean

    Receive exclusive

    Allow only one consumer to attach to each message point. If this option is not selected multiple consumers will be allowed to attach and receive messages from each message point.

    Information Value
    Required No
    Data type Boolean

    Maintain strict message order

    Enable this option will maintain the strict ordering of messages for this destination.

    Information Value
    Required No
    Data type Boolean

    Reply destination

    The name of a destination to be appended to any non-empty reverse routing path of messages sent to this destination.

    This property is intended for use with mediations on reply messages.

    For more information about the use of this property, see Configure a destination reverse routing path.

    Information Value
    Required No
    Data type String

    Reply destination bus

    The bus on which the reply destination exists.

    This property is intended for use with mediations on reply messages.

    For more information about the use of this property, see Configure a destination reverse routing path.

    Information Value
    Required No
    Data type String

    Default forward routing path

    The value to which a message's forward routing path will be set if the message contains no forward routing path. This identifies a sequential list of intermediary bus destinations that messages must pass through to reach a target bus destination. The format of the field is a list of line-delimited bus destinations specified as bus:name.

    To forward messages to one or more bus destinations, type a list of bus destinations. Type each destination entry on a separate line, and in the form bus_name:destination_name or :destination_name

    Where

    bus_name

    Is the name of the service integration bus on which the destination is configured. If we do not specify a bus name, the destination is assumed to be on the same bus as the destination for which we are setting this property.

    destination_name

    is the name of a bus destination.

    Information Value
    Required No
    Data type Text area


    Message points

    Queue points

    Displays a list of queue points used to hold messages pending delivery to receiving applications.

    Mediation points

    Displays a list of mediation points created when a mediation is associated with a bus destination.


    Additional Properties

    Context properties

    Context information passed to the mediation.

    Mediation execution points

    Mediation execution points for the processing of messages from mediation message points that are on a WebSphere MQ server.


    Related Items

    Application resources for this destination

    This pane provides an expandable tree view of all the applications and messaging resources that reference the current destination, both directly and indirectly. As many of the references as possible are resolved to links to the associated configuration panel for the referenced object.

    Use this panel to inspect the configuration from the queue or topic space (destination) to the application or other JMS resources to ensure that the configuration is correct.


    Related tasks

  • Create a queue for point-to-point messaging

  • Configure bus destination properties

  • Configure a destination reverse routing path


    Related information:

  • Administrative console buttons

  • Administrative console preference settings

  • Messaging engines [Settings]

  • Application resources for this destination Reference topic