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https://issues.apache.org/jira/browse/SOLR-1715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14310932#comment-14310932
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Toke Eskildsen commented on SOLR-1715:
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[~mkhludnev] I think that would also be a viable solution, especially since it
does not require new code. It might be preferable for many setups. It would
require a bit of bookkeeping when multiple subsets are used, with a limitation
of 64 subsets per DV-long-field, but persistent subsets requires a bookkeeping
system anyway.
I our case we would very much like to avoid changing the shards as it triggers
a backup round. But it might be that large shards with a semi-hard requirement
of immutability are rare.
> Externally Generated Filters
> ----------------------------
>
> Key: SOLR-1715
> URL: https://issues.apache.org/jira/browse/SOLR-1715
> Project: Solr
> Issue Type: New Feature
> Components: search
> Reporter: Grant Ingersoll
> Priority: Minor
> Fix For: 4.9, Trunk
>
>
> I'd like to have a way of loading document filters from externally generated
> sources. For instance, I may have run a clustering task over my corpus and
> the results may be stored in HDFS (Hadoop). A given cluster will have a
> centroid and a bunch of points that are in the cluster. The points are
> labeled by doc id (the Solr doc id) from the index.
> Another example is I may have an external security system that can provide
> info on which documents are available to a user.
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