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Posted to dev@lucene.apache.org by "Mark Miller (JIRA)" <ji...@apache.org> on 2014/02/04 19:20:14 UTC

[jira] [Created] (SOLR-5693) Running on HDFS does work correctly with NRT search.

Mark Miller created SOLR-5693:
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             Summary: Running on HDFS does work correctly with NRT search.
                 Key: SOLR-5693
                 URL: https://issues.apache.org/jira/browse/SOLR-5693
             Project: Solr
          Issue Type: Bug
            Reporter: Mark Miller
            Assignee: Mark Miller
             Fix For: 5.0, 4.7


Like NFS, HDFS has different file delete semantics than Windows and Unix. For non NRT cases, you can work around this by reserving commit points, but NRT counts on delete on last close semantics (unix), or delete fails, try again later (windows). This is because files can be merged away before they even become part of a commit point. Meanwhile, real time readers can reference those files.



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