# tFixedFlowInput properties for Apache Spark Batch

These properties are used to configure tFixedFlowInput running in the Spark Batch Job framework.

The Spark Batch 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.

## Basic settings

| Schema and Edit<br>Schema | A schema is a row description, it defines the number of fields that<br>will be processed and passed on to the next component. The schema is<br>either built-in or remote in the Repository.<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> |
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|  | Built-in: The schema will be created<br>and stored locally for this component only. Related topic: see<br>*Talend Studio User Guide*. |
|  | Repository: You have already created<br>the schema and stored it in the Repository, hence can be reused in<br>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.<br><br><br>Use Single Table : Enter the data that<br>you want to generate in the relevant value field.<br><br><br>Use Inline Table : Add the row(s) that<br>you want to generate.<br><br><br>Use Inline Content : Enter the data<br>that you want to generate, separated by the separators that you have<br>already defined in the Row and<br>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<br>you defined in the schema dialog box via the Edit<br>schema button. |

## Advanced settings

| Set the number of partitions | Select this check box and then enter the number of partitions into<br>which you want to dispatch the input rows.<br><br>If you leave this check box clear, each input row forms a partition.<br>For example, with *5* in the Number of rows field, each row is handled as<br>one partition and thus they make 5 partitions in total. |
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## Usage

| **Usage rule** | This component is used as a start component and requires an<br>output link.<br><br>This component, along with the Spark Batch component Palette it belongs to,<br>appears only when you are creating a Spark Batch Job.<br><br>Note that in this documentation, unless otherwise explicitly stated, a<br>scenario presents only Standard Jobs, that is to<br>say traditional<br>Talend<br>data integration Jobs. |
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| Spark Connection | In the Spark<br>Configuration tab in the Run<br>view, define the connection to a given Spark cluster for the whole Job. In<br>addition, since the Job expects its dependent jar files for execution, you must<br>specify the directory in the file system to which these jar files are<br>transferred so that Spark can access these files:<br><br><ul> <li> <div> <span>Yarn mode</span> (Yarn client or Yarn cluster):<ul> <li> <p>When using Google Dataproc, specify a bucket in the                                            <span>Google Storage staging bucket</span>                                        field in the <span>Spark configuration</span>                                        tab.</p> </li> <li> <p>When using HDInsight, specify the blob to be used for Job                                        deployment in the <span>Windows Azure Storage                                            configuration</span> area in the <span>Spark                                            configuration</span> tab.</p> </li> <li>When using Altus, specify the S3 bucket or the Azure                                    Data Lake Storage for Job deployment in the <span>Spark                                        configuration</span> tab.</li> <li>When using Qubole, add a                                        <span>tS3Configuration</span> to your Job to write                                    your actual business data in the S3 system with Qubole. Without                                        <span>tS3Configuration</span>, this business data is                                    written in the Qubole HDFS system and destroyed once you shut                                    down your cluster.</li> <li> <p>When using on-premises distributions, use the configuration component                                        corresponding to the file system your cluster is using.                                        Typically, this system is HDFS and so use <a href="https://help.qlik.com/talend/r/en-US/7.3/components/hdfs/thdfsconfiguration">tHDFSConfiguration</a>.</p> </li> </ul> </div> </li> <li> <p> <span>Standalone mode</span>: use the                            configuration component corresponding to the file system your cluster is                            using, such as <a href="https://help.qlik.com/talend/r/en-US/7.3/components/hdfs/thdfsconfiguration-properties-for-apache-spark-batch">tHDFSConfiguration Apache Spark Batch</a> or <a href="https://help.qlik.com/talend/r/en-US/7.3/components/amazon-s3/ts3configuration-properties-for-apache-spark-batch">tS3Configuration Apache Spark Batch</a>.</p> <p>If you are using Databricks without any configuration component present                            in your Job, your business data is written directly in DBFS (Databricks                            Filesystem).</p> </li> </ul><br><br>This connection is effective on a per-Job basis. |