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https://issues.apache.org/jira/browse/SOLR-5693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13893529#comment-13893529
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ASF subversion and git services commented on SOLR-5693:
-------------------------------------------------------
Commit 1565347 from [[email protected]] in branch 'dev/branches/branch_4x'
[ https://svn.apache.org/r1565347 ]
LUCENE-5434: NRT support for file systems that do no have delete on last close
or cannot delete while referenced semantics.
SOLR-5693: Running on HDFS does work correctly with NRT search.
> 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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