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https://issues.apache.org/jira/browse/SOLR-5944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14951183#comment-14951183
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Yonik Seeley commented on SOLR-5944:
------------------------------------

Stepping back and looking the high level view of Ishan's last 
proposal/approach, I think it looks fine.
Once we get into true partial udpates, we can't really allow reorders, so they 
either have to be ordered on the sender side, or the receiver side.  From a 
complexity POV, once we have to order certain types of updates, it's no more 
complex to order them all.

If I could wave a magic wand, we'd have the order-on-the-sender-side approach, 
because it should also solve known weaknesses like I appear to be hitting in 
SOLR-8129, but I recognize it would be a lot of work.  Of course, reordering on 
the receiver side is not going to be a picnic either - the synchronization 
involved may be quite difficult to get right.

> Support updates of numeric DocValues
> ------------------------------------
>
>                 Key: SOLR-5944
>                 URL: https://issues.apache.org/jira/browse/SOLR-5944
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ishan Chattopadhyaya
>            Assignee: Shalin Shekhar Mangar
>         Attachments: SOLR-5944.patch, SOLR-5944.patch, SOLR-5944.patch, 
> SOLR-5944.patch, SOLR-5944.patch, SOLR-5944.patch, SOLR-5944.patch, 
> SOLR-5944.patch, SOLR-5944.patch, SOLR-5944.patch, SOLR-5944.patch, 
> SOLR-5944.patch
>
>
> LUCENE-5189 introduced support for updates to numeric docvalues. It would be 
> really nice to have Solr support this.



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