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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2548) Multithreaded faceting
Date Tue, 10 Sep 2013 00:59:54 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13762543#comment-13762543
] 

Yonik Seeley commented on SOLR-2548:
------------------------------------

bq. in the event of an exception in one worker; the rest should be cancelled

In addition to Robert's comment that points out why we never want to use cancel on anything
that does IO, we shouldn't add complexity trying to optimize an error case.

bq. ExecutionException is a wrapping exception; you should unwrap it and wrap SolrException
on its contents, not the ExecutionException itself.

We should definitely strive to make the multi-threading as transparent as possible (i.e. exceptions
should be as close as possible to the non-threaded case).
                
> Multithreaded faceting
> ----------------------
>
>                 Key: SOLR-2548
>                 URL: https://issues.apache.org/jira/browse/SOLR-2548
>             Project: Solr
>          Issue Type: Improvement
>          Components: search
>    Affects Versions: 3.1
>            Reporter: Janne Majaranta
>            Assignee: Erick Erickson
>            Priority: Minor
>              Labels: facet
>             Fix For: 4.5, 5.0
>
>         Attachments: SOLR-2548_4.2.1.patch, SOLR-2548_for_31x.patch, SOLR-2548_multithreaded_faceting,_dsmiley.patch,
SOLR-2548.patch, SOLR-2548.patch, SOLR-2548.patch, SOLR-2548.patch, SOLR-2548.patch, SOLR-2548.patch
>
>
> Add multithreading support for faceting.

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