Dear Wiki user, You have subscribed to a wiki page or wiki category on "Cassandra Wiki" for change notification.
The "BinaryMemtable" page has been changed by JonathanEllis. http://wiki.apache.org/cassandra/BinaryMemtable -------------------------------------------------- New page: Binary Memtable is the name of Cassandra's bulk-load interface. It avoids several kinds of overhead associated with the normal Thrift API: * Converting to Thrift from the internal structures and back * Routing (copying) from a coordinator node to the replica nodes * Writing to the commitlog * Serializing the internal structures to on-disk format The tradeoff you make is that it is considerably less convenient to use than Thrift: * You must use the StorageProxy API, only available as Java code * You must pre-serialize the rows yourself * The rows you send are not live for querying until a flush occurs (either normally because the Binary Memtable fills up, or because you request one with `nodetool`) * You must write an entire row at once There is an example of using Hadoop to load data through the Binary Memtable interface at https://svn.apache.org/repos/asf/cassandra/trunk/contrib/bmt_example/.
