Strange behavior of RedeliveryPolicy with BackOffMultiplier

[Andrei Shakirin <as...@talend.com>]

Hi,

I observe a strange behaviour of redelivery in AMQ 5.13.4 in case if BackOffMultiplier is specified.

For example, redelivery policy is specified as:
Initial delay = 0;
Maximum redeliveries = 5
Redelivery delay = 12 sec
BackOffMultiplier = 5

Redelivery 1: immediately: OK
Redelivery 2: in 12 sec: OK
Redelivery 3: in 1 min: OK
Redelivery 4: in 12 sec: NOT OK
Redelivery 5: in 1 min: NOT OK

It looks like after some redeliveries, the current delay is ignored and restarted from the beginning. Issue occurs only sometimes.

I cannot find any known bugs regarding that. Any idea what can be the reason and how it can be investigated more deeply?

Regards,
Andrei.
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