Pavel Moravec created QPID-4595:
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Summary: Invoking Receiver::fetch() in a loop for slow producer
causes only first <prefetch> messages received
Key: QPID-4595
URL: https://issues.apache.org/jira/browse/QPID-4595
Project: Qpid
Issue Type: Bug
Components: C++ Client
Affects Versions: 0.18
Reporter: Pavel Moravec
Priority: Minor
Description of problem:
Having a scenario with a slow producer and a consumer periodically running
Receiver::fetch() method (for timeout lesser than forever), the consumer gets
just first N messages where N is the size of prefetch / capacity, and then
nothing - despite there are new messages on the broker.
Version-Release number of selected component (if applicable):
qpid-cpp-client*-0.18-14
How reproducible:
100%
Steps to Reproduce:
1. Unpack attached tarball
2. make
3. in one terminal, create queue and start producer (that waits 15 seconds to
kick-off consumer first):
./setup
4. in another terminal, start consumer:
./read
Actual results:
When producer starts to produce messages, the consumer gets just first 10
messages (or whatever is set in receiver.setCapacity()). Later on, despite
there are new messages in the queue, receiver does not get any.
Expected results:
Receiver gets further messages when some occurr on the broker.
Additional info:
Patch proposed
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