[ https://issues.apache.org/activemq/browse/AMQ-370?page=all ]
Hiram Chirino resolved AMQ-370:
-------------------------------
Fix Version: 4.0
Resolution: Fixed
Exponential redeliveries are now implemented on the client side correctly in
activemq 4.0. I would recommend you upgrade to 4.0.
> Sleeping time between redeliveries
> ----------------------------------
>
> Key: AMQ-370
> URL: https://issues.apache.org/activemq/browse/AMQ-370
> Project: ActiveMQ
> Type: Improvement
> Reporter: Daniel Aioanei
> Fix For: 4.0
>
>
> The method org.activemq.service.impl.SubscriptionImpl.getMessagesToDispatch
> seems to wait synchronously until the next redelivery is due for each message
> to be retried. This means that for each message that needs be redelivered
> let's say the next day, there will be a thread that's going to be sleeping
> for a whole day. I think there is a lot of space for improvement here, but
> please correct me if I didn't understand the code correctly.
> if (redeliveryPolicy.isBackOffMode()
> && msg.getDeliveryCount() <
> redeliveryPolicy.getMaximumRetryCount()) {
> long sleepTime =
> redeliveryPolicy.getInitialRedeliveryTimeout();
> sleepTime *= (msg.getDeliveryCount() *
> redeliveryPolicy.getBackOffIncreaseRate());
> try {
> Thread.sleep(sleepTime);
> }
> catch (InterruptedException e) {
> }
> }
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