[
https://issues.apache.org/jira/browse/CASSANDRA-6477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039757#comment-14039757
]
Benedict commented on CASSANDRA-6477:
-------------------------------------
There's a possible simplification of my proposed algorithm: if we start by
forcing writes/reads to quorum if they touch a global index, we could simply
proxy each write deterministically to one other replica, so long as we wait for
both writes to complete before a single source/table/undelrying replica reports
success.
We need to bikeshed nomenclature a bit as well: we already have the term
"primary replica" reserved for regular replication. It will help is we can
disambiguate between this and the source/underlying table replica(s). So we'd
have primary table replica, secondary table replica, primary index replica,
secondary index replica? Or something along those lines.
> 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
> Fix For: 3.0
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
