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From "Lance Norskog (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-3473) Distributed deduplication broken
Date Sat, 01 Sep 2012 00:49:08 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446539#comment-13446539
] 

Lance Norskog commented on SOLR-3473:
-------------------------------------

It would be great to have this work in some form, even if it does not have the same API as
before.

                
> Distributed deduplication broken
> --------------------------------
>
>                 Key: SOLR-3473
>                 URL: https://issues.apache.org/jira/browse/SOLR-3473
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud, update
>    Affects Versions: 4.0-ALPHA
>            Reporter: Markus Jelsma
>             Fix For: 4.0
>
>         Attachments: SOLR-3473.patch, SOLR-3473.patch, SOLR-3473-trunk-2.patch
>
>
> Solr's deduplication via the SignatureUpdateProcessor is broken for distributed updates
on SolrCloud.
> Mark Miller:
> {quote}
> Looking again at the SignatureUpdateProcessor code, I think that indeed this won't currently
work with distrib updates. Could you file a JIRA issue for that? The problem is that we convert
update commands into solr documents - and that can cause a loss of info if an update proc
modifies the update command.
> I think the reason that you see a multiple values error when you try the other order
is because of the lack of a document clone (the other issue I mentioned a few emails back).
Addressing that won't solve your issue though - we have to come up with a way to propagate
the currently lost info on the update command.
> {quote}
> Please see the ML thread for the full discussion: http://lucene.472066.n3.nabble.com/SolrCloud-deduplication-td3984657.html

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