[jira] [Resolved] (SOLR-5338) Split shards by a route key

["Shalin Shekhar Mangar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-5338?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shalin Shekhar Mangar resolved SOLR-5338.
-----------------------------------------

    Resolution: Fixed

> Split shards by a route key
> ---------------------------
>
>                 Key: SOLR-5338
>                 URL: https://issues.apache.org/jira/browse/SOLR-5338
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Shalin Shekhar Mangar
>             Fix For: 4.6, 5.0
>
>         Attachments: SOLR-5338.patch, SOLR-5338.patch, SOLR-5338.patch
>
>
> Provide a way to split a shard using a route key such that all documents of the specified route key end up in a single dedicated sub-shard.
> Example:
> Assume that collection1, shard1 has hash range [0, 20]. Also that route key 'A!' has hash range [12,15]. Then invoking:
> {code}
> /admin/collections?action=SPLIT&collection=collection1&split.key=A!
> {code}
> should produce three sub-shards with hash range [0,11], [12,15] and [16,20].
> Specifying the source shard is not required here because the route key is enough to figure it out. Route keys spanning more than one shards will not be supported.
> Note that the sub-shard with the hash range of the route key may also contain documents for other route keys whose hash ranges overlap.



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