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From "Mark Miller (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-2765) Shard/Node states
Date Thu, 06 Oct 2011 19:55:29 GMT


Mark Miller commented on SOLR-2765:

This is where incremental update of the cloud state gets tricky...

If you have something like these roles at the shard level, all of a sudden you cannot change
them on the fly because the new incremental update will not pick them up.

Its a tricky situation - without incremental, things start to get nasty at a huge number of
shards. One possibility is that everyone also watches another node, that when pinged, causes
a full read - so that must cloud state updates are incremental, but when per shard info like
this is changed on the fly, you can then trigger a full read by everyone...
> Shard/Node states
> -----------------
>                 Key: SOLR-2765
>                 URL:
>             Project: Solr
>          Issue Type: Sub-task
>          Components: SolrCloud, update
>            Reporter: Yonik Seeley
>             Fix For: 4.0
>         Attachments: shard-roles.patch
> Need state for shards that indicate they are recovering, active/enabled, or disabled.

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