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The following page has been changed by JoeStump: http://wiki.apache.org/cassandra/API The comment on the change is: Added notes about returning to the client and formatting. ------------------------------------------------------------------------------ '''WARNING:''' Some SQL/RDBMS terminology being used in this documentation for analogy purposes. They should be thought of as just that; analogies. There are few similarities between how data is managed in a traditional RDBMS and Cassandra. Please see DataModel for more information. == Terminology / Abbreviations == - Keyspace:: Contains multiple Column Families + Keyspace:: Contains multiple Column Families. - CF:: ColumnFamily. + CF:: !ColumnFamily. - SCF:: ColumnFamily of type "Super". + SCF:: !ColumnFamily of type "Super". == Exceptions == NotFoundException:: A specific column was requested that does not exist. @@ -26, +26 @@ ==== Write ==== ||'''Level'''||'''Behavior'''|| - ||`ZERO`||Only ensure that the write has been written to the commit log.|| + ||`ZERO`||Only ensure that the write has been written to the commit log before responding to the client.|| - ||`ONE`||Ensure that the write has been written to at least 1 node's commit log and memory table.|| + ||`ONE`||Ensure that the write has been written to at least 1 node's commit log and memory table before responding to the client.|| - ||`QUORUM`||Ensure that the write has been written to `<ReplicationFactor> / 2 + 1` nodes.|| + ||`QUORUM`||Ensure that the write has been written to `<ReplicationFactor> / 2 + 1` nodes before responding to the client.|| - ||`ALL`||Ensure that the write is written to `<ReplicationFactor>` nodes.|| + ||`ALL`||Ensure that the write is written to `<ReplicationFactor>` nodes before responding to the client.|| ==== Read ====
