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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/08/09 12:11:53 UTC

[GitHub] [pulsar] gaozhangmin opened a new issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader 

gaozhangmin opened a new issue #11604:
URL: https://github.com/apache/pulsar/issues/11604


   Got exception when consumer using reader:
   Got exception java.lang.UnsupportedOperationException: MessageId is null。


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[GitHub] [pulsar] leizhiyuan commented on issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader

Posted by GitBox <gi...@apache.org>.
leizhiyuan commented on issue #11604:
URL: https://github.com/apache/pulsar/issues/11604#issuecomment-895179218


   ![image](https://user-images.githubusercontent.com/2684384/128705475-9ea3ebf1-b5c2-470f-b6bc-41ebea06ae57.png)
   
   They add a precheck for messageId


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[GitHub] [pulsar] leizhiyuan commented on issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader

Posted by GitBox <gi...@apache.org>.
leizhiyuan commented on issue #11604:
URL: https://github.com/apache/pulsar/issues/11604#issuecomment-895182485


   ![image](https://user-images.githubusercontent.com/2684384/128705973-f4ef264f-ff43-4b46-a2b4-672d3f1b2147.png)
   
   maybe there is a concurrent bug。 
   
   
   ```
     if (lastCumulativeAck.messageId == null) {. // 1. is not null
               return false;
           }
           if (messageId.compareTo(lastCumulativeAck.messageId) <= 0) { //1.another thread change the messageId to null
               // Already included in a cumulative ack
               return true;
           } else {
               return pendingIndividualAcks.contains(messageId);
           }
   ```


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[GitHub] [pulsar] gaozhangmin commented on issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader

Posted by GitBox <gi...@apache.org>.
gaozhangmin commented on issue #11604:
URL: https://github.com/apache/pulsar/issues/11604#issuecomment-895180330


   > which version do you use？
   2.8.0
   


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[GitHub] [pulsar] merlimat closed issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader

Posted by GitBox <gi...@apache.org>.
merlimat closed issue #11604:
URL: https://github.com/apache/pulsar/issues/11604


   


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[GitHub] [pulsar] leizhiyuan edited a comment on issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader

Posted by GitBox <gi...@apache.org>.
leizhiyuan edited a comment on issue #11604:
URL: https://github.com/apache/pulsar/issues/11604#issuecomment-895182485


   ![image](https://user-images.githubusercontent.com/2684384/128705973-f4ef264f-ff43-4b46-a2b4-672d3f1b2147.png)
   
   maybe there is a concurrent bug。 
   
   
   ```
     if (lastCumulativeAck.messageId == null) {. // 1. is not null
               return false;
           }
           if (messageId.compareTo(lastCumulativeAck.messageId) <= 0) { //2.another thread change the messageId to null
               // Already included in a cumulative ack
               return true;
           } else {
               return pendingIndividualAcks.contains(messageId);
           }
   ```


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[GitHub] [pulsar] leizhiyuan commented on issue #11604: Got exception java.lang.UnsupportedOperationException: MessageId is null。Using Reader

Posted by GitBox <gi...@apache.org>.
leizhiyuan commented on issue #11604:
URL: https://github.com/apache/pulsar/issues/11604#issuecomment-895178912


   which version do you use？
   
   this pr seems fixed it 
   
   https://github.com/apache/pulsar/pull/10586 


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