# tFixedFlowInput MapReduce properties (deprecated) Availability-note[Deprecated](https://help.talend.com/r/en-US/Cloud/labels-on-talend-help-center/availability-deprecated) This content is deprecated. These properties are used to configure tFixedFlowInput running in the MapReduce Job framework. The MapReduce tFixedFlowInput component belongs to the Misc family. The component in this framework is available in all Talend products with Big Data and Talend Data Fabric. Availability-note[Deprecated](https://help.talend.com/r/en-US/Cloud/labels-on-talend-help-center/availability-deprecated) This content is deprecated. The MapReduce framework is deprecated from Talend 7.3 onwards. Use Talend Jobs for Apache Spark to accomplish your integration tasks. ## Basic settings | Schema and Edit
Schema | A schema is a row description, it defines the number of fields that
will be processed and passed on to the next component. The schema is
either built-in or remote in the Repository.

Click Edit
schema to make changes to the schema. If the current schema is of the Repository type, three options are available:

| | --- | --- | | | Built-in: The schema will be created
and stored locally for this component only. Related topic: see
*Talend Studio User Guide*. | | | Repository: You have already created
the schema and stored it in the Repository, hence can be reused in
various projects and Job designs. Related topic: see *Talend Studio User Guide*. | | Mode | From the three options, select the mode that you want to use.


Use Single Table : Enter the data that
you want to generate in the relevant value field.


Use Inline Table : Add the row(s) that
you want to generate.


Use Inline Content : Enter the data
that you want to generate, separated by the separators that you have
already defined in the Row and
Field Separator fields. | | Number of rows | Enter the number of lines to be generated. | | Values | Between inverted commas, enter the values corresponding to the columns
you defined in the schema dialog box via the Edit
schema button. | ## Global Variables | Global Variables | NB\_LINE:
the number of rows processed. This is an After variable and it returns an integer.


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 | **Usage rule** | In a
Talend
Map/Reduce Job, it is used as a start component and requires
a transformation component as output link. The other components used along with it must be
Map/Reduce components, too. They generate native Map/Reduce code that can be executed
directly in Hadoop.

Note that in this documentation, unless otherwise
explicitly stated, a scenario presents only Standard Jobs,
that is to say traditional
Talend
data integration Jobs, and non Map/Reduce Jobs. | | --- | --- | | Hadoop Connection | You need to use the Hadoop Configuration tab in the
Run view to define the connection to a given Hadoop
distribution for the whole Job.

This connection is effective on a per-Job basis. |