Return-Path: X-Original-To: apmail-cassandra-commits-archive@www.apache.org Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 0E76E1813C for ; Tue, 7 Jul 2015 15:39:09 +0000 (UTC) Received: (qmail 78622 invoked by uid 500); 7 Jul 2015 15:39:08 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 78596 invoked by uid 500); 7 Jul 2015 15:39:08 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 78582 invoked by uid 99); 7 Jul 2015 15:39:08 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 07 Jul 2015 15:39:08 +0000 Date: Tue, 7 Jul 2015 15:39:08 +0000 (UTC) From: "Carl Yeksigian (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CASSANDRA-6477) Materialized Views (was: Global Indexes) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/CASSANDRA-6477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14616872#comment-14616872 ] Carl Yeksigian commented on CASSANDRA-6477: ------------------------------------------- # MV use the batchlog in order to provide eventual consistency # MV updates follow the same CL as the base update has # No, repairs to the base table only assure that the base table is consistent; same with a repair on a MV In the patch, there is no way to do a repair between the MV and the base table other than dropping and recreating the view. > 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 > > > 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)