lars.bachmann at s2002.tu-chemnitz.de
Thu May 15 11:49:55 BST 2008
> Lars Bachmann wrote:
>> 1. if my producer sends only a small amount of messages (lets say
>> 5000), then all queues receive all messages persistent and
>> everything is ok
>> 2. if my producer sends a larger amount of messages (lets say
>> 100000), then some strange behaviour appears. All queues receive
>> only some of this messages. Sometimes 80% sometimes 50% sometimes
>> even only 10% => i couldnt discover any pattern, it seemed to be
>> just random
> Could you send us the client code, please? I'd like to try reproducing this.
i attached the sources of the producer
>> So Im wondering why this happens. Could it be that there are too
>> many messages to persist and the broker cant handle it because of
>> i dont know too less memory or some like this ?
> The way you described it above, the messages should certainly get
> routed to (and persisted by) all the queues.
> Are there any errors in the server logs?
there are no errors in the logs
>> Another question: Lets say we have 5 subscriber (each listen to his
>> "own" queue) in the pub / sub scenario and we want persistent
>> message storing. Does this mean that each messages is stored 5
>> times ? (and for n subscribers n times which would cause a big
> In a non-clustered setup only one copy of the message is stored. In a
> cluster we store one copy of the message *per node* that has queues to
> which the message was routed.
thank you for information
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