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https://issues.apache.org/jira/browse/CASSANDRA-6477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14631507#comment-14631507
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T Jake Luciani commented on CASSANDRA-6477:
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bq. Frankly, I'm pretty negative on adding such option. 

But then why do we even offer the batchlog at all?  Hand rolled materialized 
views use them.  And if you feel we should guarantee a consistency level then 
you would never use a batchlog. Since any timeout would mean you didn't achieve 
your consistency level and you must retry.  

If you are talking about just the UE then we could check the MV replica UP/Down 
status in the coordinator as well as the base.

> Materialized Views (was: Global Indexes)
> ----------------------------------------
>
>                 Key: CASSANDRA-6477
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6477
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Jonathan Ellis
>            Assignee: Carl Yeksigian
>              Labels: cql
>             Fix For: 3.0 beta 1
>
>         Attachments: test-view-data.sh, users.yaml
>
>
> Local indexes are suitable for low-cardinality data, where spreading the 
> index across the cluster is a Good Thing.  However, for high-cardinality 
> data, local indexes require querying most nodes in the cluster even if only a 
> handful of rows is returned.



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