glad to hear that :-) thanks for the update. 2009/6/5 MicAnn <mbr...@axway.com>
> > > > MicAnn wrote: > > > > Parameters : > > Version : apache-activemq-5.2.0 on windows or AIX (unix) > > JDK 1.5.0 > > Test with exclude queue (no remote consumer) > > In the policyEntry queue, producerFlowControl is false. > > > > Conditions: > > I put 40000 little messages (or more) without active consumer by session > > of 10000 messages > > I lunch listener and sometimes I get more than 40000 messages (up to 19 > > duplicates messages) > > > > ActiveMQ log display this message during the get operations > > INFO HashIndex - Resize hash bins > > queue-data_queue#3a#2f#2fLOCAL.Q3 from 1024 to 4096 > > > > When MessageID are recorded it's possible to see the double MessageID of > > duplicate messages - marqued "duplicate" for the first and xxxxxx for the > > duplicate. > > > > rs37:/home/aep262ta/test_activemq> grep -n duplicate MessageID.txt > > 27209: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7209 > > duplicate > > 27210: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7210 > > duplicate > > 27211: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7211 > > duplicate > > 27212: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7212 > > duplicate > > 27213: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7213 > > duplicate > > 27214: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7214 > > duplicate > > 27246: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7246 > > duplicate > > 27247: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7247 > > duplicate > > 27248: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7248 > > duplicate > > 27249: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7249 > > duplicate > > 27250: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7250 > > duplicate > > rs37:/home/aep262ta/test_activemq> grep -n xxxxx MessageID.txt > > 28424: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7209 > > xxxxxxxxxxx > > 28425: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7210 > > xxxxxxxxxxx > > 28426: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7211 > > xxxxxxxxxxx > > 28427: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7212 > > xxxxxxxxxxx > > 28428: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7213 > > xxxxxxxxxxx > > 28429: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7214 > > xxxxxxxxxxx > > 28430: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7246 > > xxxxxxxxxxx > > 28431: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7247 > > xxxxxxxxxxx > > 28432: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7248 > > xxxxxxxxxxx > > 28433: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7249 > > xxxxxxxxxxx > > 28434: JMS MessageID : ID:rs37-36072-1244118256815-0:0:1:1:7250 > > xxxxxxxxxxx > > > > Here, messages read the first time in 27209 pos. are provided a second > > time in 28424 pos. > > > > Issue is reproducible on Windows or unix system (AIX). > > > > The JMX console shows that the QueueSize attribute has negative value > (see > > the image) http://www.nabble.com/file/p23872984/duplicate.jpeg and > > Dequeue count is bigger than EnqueueCount > > > > Other condition: > > With a non exclude queue, I can't reproduce the issue. > > and the resized HashIndex is different > > INFO HashIndex - Resize hash bins queue-data_queue#3a#2f#2fM1 > > from 1024 to 2048 > > INFO HashIndex - Resize hash bins queue-data_queue#3a#2f#2fM1 > > from 2048 to 4096 > > > > This issue is serious : duplicate message or lost message is grave. > > > > > > --------------- > Gary Tully said : Can you try your test scenario with the 5.3 snapshot, I > think it should > behave better. There was an issue with the queue cache, i think this > related > to https://issues.apache.org/activemq/browse/AMQ-2020 > ---------------- > OK, this issue seems resolved with apache-activemq-5.3-SNAPSHOT. I can't > reproduce it after five tests with the same conditions. > Thanks > -- > View this message in context: > http://www.nabble.com/Duplicate-message-when-HashIndex-table-is-resized-tp23872984p23890000.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. > > -- http://blog.garytully.com Open Source Integration http://fusesource.com
