Will by default auto-detect the protocol version as part of It is usually not necessary to configure this field, as the driver Optional native protocol version to use when contacting the Cassandra cluster. These parameters should be configured if the Cassandra clusterĪuthenticates clients with the PasswordAuthenticator authenticator. Optional authentication credentials to use when connecting to the cluster. TCP port on which the Cassandra servers listen for native transport queries. Mandatory The corresponding keyspace should exist on the cluster. So that the cluster can still be connected to when one of the configured hosts is down.Ĭassandra keyspace in which to look for tables. It is usually better to configure more than one however, Note that it is not necessary to configure the entire list of Cassandra nodes here, as theĭriver will dynamically discover the full cluster topologyįrom the contact host once connected.It is mandatory to configure at least one

The following configuration parameters are available:Ĭomma-separated list of Cassandra nodes to which to connect (names or addresses). Note that the default is localhost, which forbids remote access to this service.Ĭonfiguring Cassandra cluster connections ¶Īccessing datasets stored on a Cassandra cluster first requires the definition of a connection to this cluster. IP address on which the Cassandra server listens for native transport queries, TCP port on which the Cassandra server listens for native transport queries. Should be configured to true for native transport service to be enabled. In particular the following configuration directives in the cassandra.yaml Cassandra configuration file may have to be adjusted: Make sure that the native transport service is enabled on the Cassandra servers, and that the network port for this service is accessible from the Data Science Studio server.

With additional restrictions, it can also connect to clusters running Cassandra version 1.2.Ĭassandra clusters are accessed using CQ元 native transport (Cassandra binary protocol).

API Node & API Deployer: Real-time APIsĭata Science Studio can connect to clusters running Cassandra version 2.0.1 and later.

Automation scenarios, metrics, and checks.

Configuring Cassandra cluster connections.

Sys.describeKeyspace('Keyspace1', function(err, ksDef) ) Ĭon. Using It Access the System keyspace var System = require('cassandra-client').System Node-cassandra-client is distributed under the Apache license.įrom the Node.js source (which comes from the V8 source).

Cassandra client