RC.connect: Connect, login, close connection to Cassandra

In RCassandra: R/Cassandra interface

Description

RC.connect connects a to a host running Cassandra. All subsequent operations are performed on the handle returned by this function.

RC.close closes a Cassandra connection.

RC.login perform an authentication request.

Usage

RC.connect(host = NULL, port = 9160L)
RC.close(conn)
RC.login(conn, username = "default", password = "")

Arguments

host	host name or IP address to connect to using TCP/IP
port	port to connect to on the above host
conn	connection handle as returned by RC.connect
username	username for the authentication dictionary
password	password for the authentication dictionary

Details

RC.connect return an opaque connection handle that has to be used for all subsequent calls on the same connection. RCassandra uses low-level system calls to communicate with Cassandra, this handle is not an R connection.

RC.close closes an existing Cassandra connection.

RC.login sends an authenticataion request with the given credentials. How this is processed depend on the authentication module use in the Cassandra instance this connection connects to.

Value

RC.connect returns a Cassandra connection handle.

RC.close return NULL

RC.login returns conn.

Author(s)

Simon Urbanek

Examples

## Not run: 
c <- RC.connect("cassandra-host")
RC.login(c, "foo", "bar")
RC.cluster.name(c)
RC.describe.keyspaces(c)
RC.close(c)

## End(Not run)

RCassandra documentation built on May 2, 2019, 10:10 a.m.