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From "Rob Davies (JIRA)" <>
Subject [jira] Assigned: (AMQ-1916) Add another acknowledgement mode to enable acks for a window/batch of messages
Date Sun, 31 Aug 2008 08:14:52 GMT


Rob Davies reassigned AMQ-1916:

    Assignee: Rob Davies

> Add another acknowledgement mode to enable acks for a window/batch of messages
> ------------------------------------------------------------------------------
>                 Key: AMQ-1916
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Broker, JMS client
>    Affects Versions: 5.3.0
>         Environment: N/A
>            Reporter: Bonny Rais
>            Assignee: Rob Davies
> Add ActiveMQSession.WINDOW_ACKNOWLEDGE (or some other constant) to enable acknowledgement
of a number of  messages at once from a consumer. In this mode, the message
> being acknowledged will indicate all messages since the last acknowledgement up to the
specified messages are then acknowledged.
> This assumes that there's message ordering in place (which is already be there for queues
> This will allow consumers to indicate to the broker precisely what messages have been
 processed, as well as decouple delivery of messages from processing them without the need
to store them 
> locally on the consumer persistently themselves. This will minimise network chitchat
that would otherwise occur with INDIVIDUAL_ACKNOWLEDGE, and will add certainty about the state
> delivery of messages that is not possible with CLIENT_ACKNOWLEDGE (as there can be lots
of messages in flight sent by the broker but not yet processed).

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