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https://issues.apache.org/activemq/browse/AMQ-2780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan Rolland updated AMQ-2780:
------------------------------
Attachment: Producer.java
Consumer.java
BenchmarkSupport.java
the command and arguments to invoke the two apps from maven to reproduce the
problem:
mvn -e exec:java -Dexec.mainClass="org.apache.activemq.benchmark.Producer"
-Dexec.args="tcp://127.0.0.1:61616 false queue/syncTopic false 64"
mvn -e exec:java -Dexec.mainClass="org.apache.activemq.benchmark.Consumer"
-Dexec.args="tcp://127.0.0.1:61616 false queue/RemoteQ false 1 1"
example output from consumer showing violations:
Delay Set to:5227 ms, violations:0
Delay Set to:2233 ms, violations:0
Delay Set to:9269 ms, violations:0
Delay Set to:8694 ms, violations:0
Delay Set to:7000 ms, violations:0
Delay Set to:6667 ms, violations:0
Delay Set to:7708 ms, violations:0
Delay Set to:4281 ms, violations:0
Delay Set to:4317 ms, violations:0
Delay Set to:1227 ms, violations:0
Delay Set to:6678 ms, violations:0
MessageID Out of Order: 1037651!=1037451
MessageID Out of Order: 1037451!=1037851
MessageID Out of Order: 1037851!=1037651
Delay Set to:384 ms, violations:3
Delay Set to:460 ms, violations:3
Delay Set to:784 ms, violations:3
Delay Set to:9581 ms, violations:3
MessageID Out of Order: 1433823!=1433623
MessageID Out of Order: 1433623!=1434023
MessageID Out of Order: 1434023!=1433823
Delay Set to:954 ms, violations:6
Delay Set to:8185 ms, violations:6
Delay Set to:4814 ms, violations:6
Delay Set to:5689 ms, violations:6
Delay Set to:6990 ms, violations:6
Delay Set to:6026 ms, violations:6
Delay Set to:4511 ms, violations:6
Delay Set to:304 ms, violations:6
> ActiveMQ not preserving Message Order
> -------------------------------------
>
> Key: AMQ-2780
> URL: https://issues.apache.org/activemq/browse/AMQ-2780
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.3.0
> Environment: Windows XP, JDK 1.6.0_07
> Reporter: Ryan Rolland
> Priority: Critical
> Attachments: BenchmarkSupport.java, Consumer.java, Producer.java
>
>
> I believe I have found a bug in message order delivery in ActiveMQ. I have
> taken the example benchmark consumer and producer programs and made the
> following modifications:
> 1) Added a counter to keep track manually of the message order.
> 2) Made the transmitted number of bytes per message random between 1 and
> 64 bytes.
> 3) Added a random delay between 1 and 10 seconds triggered after every
> 100000 messages transferred on the publishing side.
> After running for a few minutes I begin to see violations in the message
> delivery order. In my most recent run I have counted 54 violations over the
> course of an hour.
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