http://code.google.com/p/jassandra/source/browse/trunk/org.softao.jassandra/ src/org/softao/jassandra/thrift/ThriftColumnFamily.java
Insert and Delete method of this class are using batch_mutation. Cheers. Dop From: Lubos Pusty [mailto:lubospu...@gmail.com] Sent: Friday, April 23, 2010 9:40 PM To: user@cassandra.apache.org Subject: lazyboy - batch insert Hello, Is there a possibility to execute batch mutation (e.g. insert) over different rows with supercolumns in lazyboy? To be more concrete: Keyspace1: { ColumnFamily1: { rowid1: { SuperColumn1: { key1_1 : val1, key1_2 : val2, .. }, SuperColumn2: { key2_1 : val1, key2_2 : val2, } } rowid2: { SuperColumn3: { ... } } Records are part of same columnfamily with following keys: Key(keyspace='Keyspace',column_family='ColumnFamily1',super_column='SuperCol umn1', key='rowid1') Key(keyspace='Keyspace',column_family='ColumnFamily1',super_column='SuperCol umn2', key='rowid1') Key(keyspace='Keyspace',column_family='ColumnFamily1',super_column='SuperCol umn3', key='rowid2') Having those records filled with data and keys, I'd like to insert them in batch instead of doing it one by one (as it is currently implemented in lazyboy): recordset.py: def save(self, consistency=None): consistency = consistency or self.consistency records = modified(self.itervalues()) if not valid(records): raise ErrorMissingField("Missing required field(s):", missing(records)) for record in records: record.save(consistency) return self I've seen in thrift interface specification method batch_mutate with mutation_map, is it relevant to this type of operation? Thanks, Lubos
