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From "Markus Jelsma (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-3473) Distributed deduplication broken
Date Mon, 21 May 2012 16:16:42 GMT
Markus Jelsma created SOLR-3473:
-----------------------------------

             Summary: 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
            Reporter: Markus Jelsma
             Fix For: 4.0


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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