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From Rob Davies <>
Subject Re: Persistent delivery mode and durable subscriptions
Date Thu, 08 Mar 2007 05:13:40 GMT
Hi Suchitha,

  yes - for durable subscribers, persistent messages are always  
placed in the message store of the broker.
There are a few different implementations we use for message storage,  
but generally there is a background thread that tries and removes  
messages that have expired - though this will be done in a more  
consistent way for the next ActiveMQ release -http://


Rob Davies

On 7 Mar 2007, at 19:03, Suchitha Koneru ((sukoneru)) wrote:

> Hi active mq users ,
>                    I have a question in regard to persistent delivery
> for durable subscriptions.
> Consider the scenario , where in , The subscriber is durable.
> For the topic publisher  , If I set the delivery mode to persistent ,
> are the messages saved to disk all the time. Are these messages not
> purged at all ?
> Also along with persistent mode of delivery , if I set time to live  
> as 5
> minutes , are the messages still on the disk even after 5 minutes.
> Please let me know,
> thanks,
> Suchitha.

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