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Jonathan Ellis commented on CASSANDRA-6477: ------------------------------------------- I disagree about making synchronous the default. As Jake points out that can kill your availability even on a single MV if you are unlucky with replica placement, and it's virtually guaranteed to kill it with many MV. I would go so far as to say that synchronous MV updates are not useful and we should not bother adding it. > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)