[ http://issues.apache.org/jira/browse/QPID-54?page=all ]
Marnie McCormack updated QPID-54:
---------------------------------
Fix Version/s: M2
(was: M1)
> When the broker is receiving high load client received rate falls.
> ------------------------------------------------------------------
>
> Key: QPID-54
> URL: http://issues.apache.org/jira/browse/QPID-54
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker, Java Client
> Reporter: Martin Ritchie
> Fix For: M2
>
>
> From work on QPID-48.
> When running the IBM Sender / Receiver tests at high data rates the OS cannot
> keep up with the high message rate. The messages are buffered by MINA, I
> haven't been able to cause MINA to result in an out of memory exception but
> that is the logical outcome if the data rate was high enough(see DIRMINA-144,
> DIRMINA-262). When the sender disconnects the broker receives a high volume
> of messages as the Sender's MINA buffer empties.
> As these messages arrive and are processed by the DeliveryManager the data
> rate's received on the Receiver drop by as much as 50%. When then Sender has
> finally sent all messages the Receiver's data rate increases usually to a new
> higher level. As would be expected as it is simply draining a single queue.
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