# tFilterColumns Storm 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 tFilterColumns running in the Storm Job framework.

The Storm tFilterColumns component belongs to the Processing family.

This component is available in Talend Real Time Big Data Platform 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 Storm framework is deprecated from Talend 7.1 onwards. Use Talend Jobs for Apache Spark Streaming to accomplish your Streaming related tasks.

## Basic settings

| Schema and Edit<br>Schema | A schema is a row description. It defines the number of fields<br>(columns) to be processed and passed on to the next component. When you create a Spark<br>Job, avoid the reserved word line when naming the<br>fields.<br><br>Click Edit<br>schema to make changes to the schema. If the current schema is of the Repository type, three options are available:<br><br><ul> <li> <p> <span>View schema</span>: choose this                option to view the schema only.</p> </li> <li> <p> <span>Change to built-in property</span>:                choose this option to change the schema to <span>Built-in</span> for local changes.</p> </li> <li> <p> <span>Update repository connection</span>:                choose this option to change the schema stored in the repository and decide whether                to propagate the changes to all the Jobs upon completion. If you just want to                propagate the changes to the current Job, you can select <span>No</span> upon completion and choose this schema metadata                again in the <span>Repository Content</span>                window.</p> </li> </ul><br><br>Click Sync columns to retrieve<br>the schema from the previous component in the Job.<br><br>This<br>component offers the advantage of the dynamic schema feature. This allows you to<br>retrieve unknown columns from source files or to copy batches of columns from a source<br>without mapping each column individually. For further information about dynamic schemas,<br>see *Talend Studio*<br>*User Guide*.<br><br>This<br>dynamic schema feature is designed for the purpose of retrieving unknown columns of a<br>table and is recommended to be used for this purpose only; it is not recommended for the<br>use of creating tables. |
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|  | Built-In: You create and store the schema locally for this component<br>only. |
|  | Repository: You have already created the schema and stored it in the<br>Repository. You can reuse it in various projects and Job designs. |

## Usage

| **Usage rule** | If you have subscribed to one of the<br>Talend<br>solutions with Big Data, you can also<br>use this component as a Storm component. In a<br>Talend<br>Storm Job, this component is used as<br>an intermediate step and other components used along with it must be Storm components, too.<br>They generate native Storm code that can be executed directly in a Storm system.<br><br>The Storm version does not support the use of the global variables.<br><br>You need to use the Storm Configuration tab in the<br>Run view to define the connection to a given Storm<br>system for the whole Job.<br><br>This connection is effective on a per-Job basis.<br><br>For further information about a<br>Talend<br>Storm Job, see the sections describing how to create and configure a<br><br>Talend<br>Storm Job of the **Talend Big Data Getting Started Guide**.<br><br>Note that in this documentation, unless otherwise explicitly stated, a scenario presents<br>only Standard Jobs, that is to say traditional<br>Talend<br>data<br>integration Jobs. |
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