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Posted to commits@beam.apache.org by "Jean-Baptiste Onofré (JIRA)" <ji...@apache.org> on 2016/12/10 16:12:58 UTC

[jira] [Created] (BEAM-1127) JmsIO should create an unique source in case of topic

Jean-Baptiste Onofré created BEAM-1127:
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             Summary: JmsIO should create an unique source in case of topic
                 Key: BEAM-1127
                 URL: https://issues.apache.org/jira/browse/BEAM-1127
             Project: Beam
          Issue Type: Bug
          Components: sdk-java-extensions
            Reporter: Jean-Baptiste Onofré
            Assignee: Jean-Baptiste Onofré


The JmsIO deals with both queue and topic.

Currently, we create multiple sources depending of the desired number of splits.
If this behavior is correct when using a queue (we have concurrent consumers of the queue), it's basically wrong when using a topic (we have multiple subscribers, so potentially duplicated message).

When using a topic, the JmsIO should use an unique source (to avoid messages duplication).



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