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From "James Dyer (Created) (JIRA)" <>
Subject [jira] [Created] (SOLR-3262) Remove "threads" from DIH (Trunk only)
Date Wed, 21 Mar 2012 18:37:40 GMT
Remove "threads" from DIH (Trunk only)

                 Key: SOLR-3262
             Project: Solr
          Issue Type: Bug
          Components: contrib - DataImportHandler
    Affects Versions: 4.0
            Reporter: James Dyer
            Assignee: James Dyer
            Priority: Minor
             Fix For: 4.0

SOLR-1352 introduced a multi-threading feature for DataImportHandler.  Historically, this
feature only seemed to work in a limited set of cases and I don't think we can guarantee users
that using "threads" will behave consistently.  Also, the multi-threaded option adds considerable
complexity making code refactoring difficult. 

I propose removing "threads" from Trunk.  (But keep it in 3.x, applying any bug fixes for
it there.)  This can be a first step in improving the DIH code base.  

Eventually we can possibly add a carefully though-out "threads" implementation back in.

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