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From "Bernd Fehling (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-3011) DIH MultiThreaded bug
Date Mon, 02 Apr 2012 08:15:01 GMT


Bernd Fehling commented on SOLR-3011:

It works with 3.5 but after applying the SOLR-3011 patch it fails. 
I know that "threads" will be removed with 4.0 but nevertheless it is helpful when loading
tons of data on a multi CPU machine.
I try to provide a unit test as new issue with reference to this issue.

Stupid question, if "threads" will be removed with 4.0 does this mean that the redesign of
dataimport is multi-threading by default so that no "threads" parameter is needed, or will
it be sized down to single-thread?

> DIH MultiThreaded bug
> ---------------------
>                 Key: SOLR-3011
>                 URL:
>             Project: Solr
>          Issue Type: Sub-task
>          Components: contrib - DataImportHandler
>    Affects Versions: 3.5
>            Reporter: Mikhail Khludnev
>            Assignee: James Dyer
>            Priority: Minor
>             Fix For: 3.6
>         Attachments: SOLR-3011.patch, SOLR-3011.patch, SOLR-3011.patch, SOLR-3011.patch,
SOLR-3011.patch, patch-3011-EntityProcessorBase-iterator.patch, patch-3011-EntityProcessorBase-iterator.patch
> current DIH design is not thread safe. see last comments at SOLR-2382 and SOLR-2947.
I'm going to provide the patch makes DIH core threadsafe. Mostly it's a SOLR-2947 patch from
28th Dec. 

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