[ 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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