[jira] [Commented] (SOLR-4221) Custom sharding

["Yonik Seeley (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13679494#comment-13679494 ] 

Yonik Seeley commented on SOLR-4221:
------------------------------------

Off the top of my head, some things left to do in this general area of "custom sharding":
- ability to create a new shard via collections API (and other lifecycle operations... delete, rename?)
  - probably want to have the option of either leaving it empty, or creating new replicas
- anything that may make time based sharding easier
  - this probably includes shard aliasing, like we have collection aliasing now
- when creating a collection, the ability to specify a router (and associated config for the router) and have that persisted, etc
- using request parameters or document fields to direct what shard an update is for
  - I think a lot of this is done/working (implicit router), but lacks tests

Further down the road, we also need to consider what to do about deletes, real-time get, or other operations where we would normally derive the shard from the ID... if it's not provided in another form, then we could decide to broadcast to all shards.

                
> Custom sharding
> ---------------
>
>                 Key: SOLR-4221
>                 URL: https://issues.apache.org/jira/browse/SOLR-4221
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Yonik Seeley
>
> Features to let users control everything about sharding/routing.

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