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https://issues.apache.org/jira/browse/QPID-7505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Wall updated QPID-7505:
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Description:
As part of changes made for QPID-1642 the functionality of
BasicMessageConsumer_0_10#receive(long) was changed to force message delivery
by sending message.flush when there is no message present locally in a consumer
queue. The message.flush is followed by the message.flow to restore the credit
as message.flush forces the sender to exhaust his credit supply making it zero
when message.flush command completes. However, no sync is sent after sending
message flow. As result, in some cases the credit is not restored promptly
impacting various messaging scenarios when message is published immediately
after receive() is called but the published message is delivered to another
consumer because credits are not restored after message.flush
This problem was detected by the sporadic failure of ConsumerPriorityTest on
the 0-10 path.
was:As part of changes made for QPID-1642 the functionality of
BasicMessageConsumer_0_10#receive(long) was changed to force message delivery
by sending message.flush when there is no message present locally in a consumer
queue. The message.flush is followed by the message.flow to restore the credit
as message.flush forces the sender to exhaust his credit supply making it zero
when message.flush command completes. However, no sync is sent after sending
message flow. As result, in some cases the credit is not restored promptly
impacting various messaging scenarios when message is published immediately
after receive() is called but the published message is delivered to another
consumer because credits are not restored after message.flush
> [Java Client,0-10] The consumer credits might not be restored by the time
> when MessageConsumer#receive() returns in situations when there is no message
> prefetched locally and consumer is sending message.flush/flow as part of
> receive() to force delivery
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-7505
> URL: https://issues.apache.org/jira/browse/QPID-7505
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.18, 0.20, 0.22, 0.24, 0.26, 0.28, 0.30, 0.32,
> qpid-java-6.0, qpid-java-6.0.1, qpid-java-6.0.2, qpid-java-6.0.3,
> qpid-java-6.0.4, qpid-java-6.0.5, qpid-java-6.1
> Reporter: Alex Rudyy
> Assignee: Keith Wall
> Fix For: qpid-java-6.0.2
>
>
> As part of changes made for QPID-1642 the functionality of
> BasicMessageConsumer_0_10#receive(long) was changed to force message delivery
> by sending message.flush when there is no message present locally in a
> consumer queue. The message.flush is followed by the message.flow to restore
> the credit as message.flush forces the sender to exhaust his credit supply
> making it zero when message.flush command completes. However, no sync is sent
> after sending message flow. As result, in some cases the credit is not
> restored promptly impacting various messaging scenarios when message is
> published immediately after receive() is called but the published message is
> delivered to another consumer because credits are not restored after
> message.flush
> This problem was detected by the sporadic failure of ConsumerPriorityTest on
> the 0-10 path.
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