tCassandraClose – Docs for ESB 5.x

Component family

Big Data / Cassandra

Function

tCassandraClose closes an active
connection to the Cassandra server.

Purpose

tCassandraClose is used to
disconnect a connection to a Cassandra server so as to release
occupied resources.

Basic settings

Component List

Select an active Cassandra connection to be closed.

Advanced settings

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at the
Job level as well as at each component level.

Global Variables

ERROR_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error check box is
cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable
functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl +
Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio
User Guide.

Usage

This component is generally used with other Cassandra components,
particularly tCassandraConnection.

Log4j

The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User
Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.

Limitation

n/a