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https://issues.apache.org/jira/browse/SOLR-3011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13244027#comment-13244027
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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: https://issues.apache.org/jira/browse/SOLR-3011
> 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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