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Apache Cassandra is an open source distributed database management system. It is designed to handle very large amounts of data spread out across many servers. It is a NoSQL solution. The module allows the insertion and retrieval of information from Cassandra clusters. This is not a DB driver module.

The following modules must be loaded before this module: none.

This module depends on the thrift library version 0.7.0. Please install this library in order to be able to successful compile this module. You can find this library at http://thrift.apache.org/ thrift 0.7.0 - available at http://thrift.apache.org/

Host of Cassandra node. Port of Cassandra node. ... modparam("ndb_cassandra", "host", "10.22.22.190") modparam("ndb_cassandra", "port", 9160) ...

Inserts the value for the given key, column, column_family and keyspace. There must be an existing keyspace called 'keyspace' with a column_family called 'column_family' in the targeted Cassandra node. Return integer needs to be checked: ret < 0, error ret > 0, success

Retrieves the value for the given key, column, column_family and keyspace. There must be an existing keyspace called 'keyspace' with a column_family called 'column_family' in the targeted Cassandra node. value will be returned as well as a integer return code. Return integer needs to be checked: ret < 0, error ret > 0, success

... loadmodule "ndb_cassandra.so" # (...) modparam("ndb_cassandra", "host", "10.22.22.190") modparam("ndb_cassandra", "port", 9160) # (...) xlog("L_DBG", "Testing ndb_cassandra module."); # Inserting to cassandra $var(keyspace) = "indigital"; $var(column_family) = "employees"; $var(column) = "name"; $var(val_write) = "TestMyName"; # To be written if (cass_insert("$var(keyspace)", "$var(column_family)", "$ru", "$var(column)", "$var(val_write)") > 0) { xlog("L_DBG", "ndb_cassandra. Sucess while inserting to Cassandra. val_write: \"$var(val_write)\""); } else { xlog("L_DBG", "ndb_cassandra. Error while inserting to Cassandra"); } # Retrieving from cassandra $var(keyspace) = "indigital"; $var(column_family) = "employees"; $var(key) = "sip:10.22.22.110"; # Before we saved our $ru, which was 'sip:10.22.22.110' $var(column) = "name"; $var(val_read) = ""; # To be read if (cass_retrieve("$var(keyspace)", "$var(column_family)", "$var(key)", "$var(column)", "$var(val_read)") > 0) { xlog("L_DBG", "ndb_cassandra. Sucess while reading from Cassandra. val_read: \"$var(val_read)\""); } else { xlog("L_DBG", "ndb_cassandra. Error while reading from Cassandra"); } ...