[jira] [Updated] (SOLR-5300) Split shards with custom hash ranges

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

     [ https://issues.apache.org/jira/browse/SOLR-5300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shalin Shekhar Mangar updated SOLR-5300:
----------------------------------------

    Attachment: SOLR-5300.patch

A new parameter "ranges" is introduced in split shard action which accepts comma-separated hash ranges in hexadecimal only.

> Split shards with custom hash ranges
> ------------------------------------
>
>                 Key: SOLR-5300
>                 URL: https://issues.apache.org/jira/browse/SOLR-5300
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Shalin Shekhar Mangar
>             Fix For: 5.0, 4.6
>
>         Attachments: SOLR-5300.patch
>
>
> Currently, shards can only be split at the mid point of their hash range. This makes it difficult to control the distribution of data in the sub shards.
> We should make it possible to specify ranges to be used for splitting. A ranges parameter can be added which can accept hash ranges in decimal or hexadecimal e.g. ranges=0-0x1f4,0x1f5-0x3e8,0x3e9-0x5dc will split a shard with range 0-1500 into three shards with ranges [0,500], [501-1000] and [1001-1500] respectively.



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