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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-8709) Account for out of order version number is TopicStream
Date Sun, 21 Feb 2016 17:45:18 GMT
Joel Bernstein created SOLR-8709:
------------------------------------

             Summary: Account for out of order version number is TopicStream
                 Key: SOLR-8709
                 URL: https://issues.apache.org/jira/browse/SOLR-8709
             Project: Solr
          Issue Type: Bug
            Reporter: Joel Bernstein


Currently the TopicStream can miss documents if version numbers are received out-of-order.
The TopicStream sorts on version number so it will only miss out-of-order versions that span
commit boundaries.

In order to resolve this issue we can adopt an approach that keeps a set of the last N version
numbers sent in memory. As the documents are scanned we can check for documents within this
time window that do not appear in the sent set. These documents can then be sent.



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