With this option you are selecting what values will appear in the data set for your new rows. When using a date field to form your new rows, you will be asked what date increments you want to add additional by.
When adding new rows, this option will determine whether you update the data field that you are assessing or creating a new data field to show the output of the logic.
When you untick ‘Use minimum / maximum’ you will have the opportunity to set the range of values you want to create the new rows for. The option to set a minimum and maximum value to assess by is what you would choose. To enable Tableau Prep Conductor on an existing installation of Tableau Server, see Step 1 (Existing Install): Enable Tableau Prep Conductor.When adding new rows, you may not want to assess the whole column or range of values within it.
For more information, see the following topics:įor new Tableau Server installations, see Step 1 (New Install): Install Tableau Server with Tableau Prep Conductor. It is recommended that you enable Tableau Prep Conductor on a dedicated node to run flows. For more information, see Workload Management through Node Roles. If the node role is set to exclude flows, then Tableau Prep Conductor is not installed on that node. Topology and Configurationīy default, Tableau Prep Conductor is automatically enabled on a node where backgrounder is enabled. For more information, see Monitor Flow Health and Performance. You can monitor user activity and performance of flows using Administrative views.
As you need more resources, we recommend adding more nodes to your server environment. These schedules let you determine when flows run, how frequently they run, the priority of that schedule, and whether to run items in that schedule serially or in parallel.Īdd resources: When scaling your Tableau Prep Conductor environment, we recommend scaling up to an 8 physical cores box per node running as many as 4 backgrounders on each. Manage flow schedules: You can control flow execution by creating flow schedules. This is highly recommended since Prep flows are CPU and RAM intensive. Isolate flows to a separate node: Running Tableau Prep Conductor on a separate node will isolate flow workflows from other Tableau workloads. Tableau Prep Conductor uses Data Engine to temporarily load the data and then perform the regular expression. When connecting to SQL Server, Tableau Prep lets you write regular expression calculations. For example, SQL Server does not natively support regular expressions. (Link opens in a new window)ĭata Engine: Any changes to data or transformation steps in your flow that cannot be pushed to the underlying data source are processed using the Data Engine process. For a list of supported Connectors, see Supported Connectors. The Backgrounder processes can be up to half the number of the physical cores of that node.Ĭonnectors: Prep Conductor uses the supported Tableau Data connectors to connect to data. By adding more Backgrounders to a node, you can increase the number of flows that can be run in parallel on that node. Backgrounder is single threaded, so each instance of the Backgrounder process on a node can run one flow at a time. Tableau Prep Conductor uses the following components to run flows:īackgrounder: Tableau Prep Conductor uses the Backgrounder process to run flows. For more information, see Tableau Server Logs and Log File Locations Logs generated by the Tableau Prep Conductor process are located in C:\ProgramData\Tableau\Tableau Server\data\tabsvc\logs\flowprocessor. For more information, see View Server Process Status Status of the Tableau Prep Conductor process is visible on the Status Page. For more information, see Tableau Prep Conductor. Starting in 2020.4 the Data Management Add-on is only needed to schedule flows to run on Tableau Server. It leverages the scheduling and tracking functionality of Tableau Server so you can automate running flows to update the flow output. The Tableau Prep Conductor process runs flows and processes flows for ingestion by Data Catalog.