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https://issues.apache.org/jira/browse/SOLR-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13455265#comment-13455265
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Michael Garski commented on SOLR-2592:
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Good point Lance, I had not even thought of that.
Dan - is there a reason the patch I submitted will not work for your use case?
I have a similar case where I need to ensure that docs that are related are in
the same shard, and with my patch that can be done by making the document's
unique id a composite id that can be parsed to extract the value that is hashed
on to determine shard membership. During any subsequent split or merge
operation the unique id can again be parsed (or the value of a field read) to
determine membership rather than the entire unique id.
> Pluggable shard lookup mechanism for SolrCloud
> ----------------------------------------------
>
> Key: SOLR-2592
> URL: https://issues.apache.org/jira/browse/SOLR-2592
> Project: Solr
> Issue Type: New Feature
> Components: SolrCloud
> Affects Versions: 4.0-ALPHA
> Reporter: Noble Paul
> Assignee: Mark Miller
> Attachments: dbq_fix.patch, pluggable_sharding.patch,
> pluggable_sharding_V2.patch, SOLR-2592.patch, SOLR-2592_r1373086.patch,
> SOLR-2592_rev_2.patch, SOLR_2592_solr_4_0_0_BETA_ShardPartitioner.patch
>
>
> If the data in a cloud can be partitioned on some criteria (say range, hash,
> attribute value etc) It will be easy to narrow down the search to a smaller
> subset of shards and in effect can achieve more efficient search.
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