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https://issues.apache.org/jira/browse/SOLR-303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580188#action_12580188
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Jayson Minard commented on SOLR-303:
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Would it be interesting to others to have an extended response format for
distributed queries that would bring back the list of shards numbered, and then
code each element of the response with the source list of shards that
contributed to the element appearing in the results? For example, which shard
was the source of a document? Or which shards had the facet value present?
And so on.
In really high shard counts it is more efficient if you can trim follow-on
queries and pivots to only shards that matter. This information would help
that effort.
Regardless, it is useful for debugging.
> Distributed Search over HTTP
> ----------------------------
>
> Key: SOLR-303
> URL: https://issues.apache.org/jira/browse/SOLR-303
> Project: Solr
> Issue Type: New Feature
> Components: search
> Reporter: Sharad Agarwal
> Assignee: Yonik Seeley
> Attachments: distributed.patch, distributed.patch, distributed.patch,
> distributed.patch, distributed.patch, distributed.patch, distributed.patch,
> distributed.patch, distributed.patch, distributed.patch, distributed.patch,
> distributed.patch, distributed_add_tests_for_intended_behavior.patch,
> distributed_facet_count_bugfix.patch, distributed_pjaol.patch,
> fedsearch.patch, fedsearch.patch, fedsearch.patch, fedsearch.patch,
> fedsearch.patch, fedsearch.patch, fedsearch.patch, fedsearch.stu.patch,
> fedsearch.stu.patch
>
>
> Searching over multiple shards and aggregating results.
> Motivated by http://wiki.apache.org/solr/DistributedSearch
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