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From "Chetan Mehrotra (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OAK-5211) OakDirectory should not save dir listing if no change is done
Date Fri, 02 Dec 2016 08:09:58 GMT
Chetan Mehrotra created OAK-5211:
------------------------------------

             Summary: OakDirectory should not save dir listing if no change is done
                 Key: OAK-5211
                 URL: https://issues.apache.org/jira/browse/OAK-5211
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: lucene
            Reporter: Chetan Mehrotra
            Assignee: Chetan Mehrotra
            Priority: Minor
             Fix For: 1.6


[~alex.parvulescu] noted that OakDirectory saves the directory listing even if no actual change
happened in the directory. Only change that happens is the order of entries in set. 

In normal cases LuceneIndexEditor avoids initializing the IndexWriter if there is no change.
However it can happen that when any node gets deleted the editor performs a delete operation.
It can happen that tree being deleted is not indexed but still editor would do this as it
cannot determine that easily. This would lead to OakDirectory being closed without any change
and thus can lead save of dir listing with just change in order of entries



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