tApacheKuduInput Standard properties - Cloud - 8.0

Kudu

Version
Cloud
8.0
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Content
Data Governance > Third-party systems > Database components (Integration) > Kudu components
Data Quality and Preparation > Third-party systems > Database components (Integration) > Kudu components
Design and Development > Third-party systems > Database components (Integration) > Kudu components

These properties are used to configure tApacheKuduInput running in the Standard Job framework.

The Standard tApacheKuduInput component belongs to the Big Data family.

The component in this framework is available in all subscription-based Talend products.

Note: This component is available only when you have installed the R2022-01 Studio Monthly update or a later one delivered by Talend. For more information, check with your administrator.

Basic settings

Property type

Either Built-In or Repository.

Built-In: No property data stored centrally.

Repository: Select the repository file where the properties are stored.

Master addresses

Click the plus button on the bottom of this field to add and configure master addresses.

  • Master node host name: Enter the IP address or hostname that identifies the Apache Kudu cluster master node.
  • Master node port: Enter the port associated with the Apache Kudu cluster master node.

To add multiple master nodes that are of the same Apache Kudu cluster, add them in separate rows.

Table name

Enter the name of the Apache Kudu table to retrieve data from. You can also select the name of the Apache Kudu table by clicking the [...] button next to this field.

Schema and Edit schema

A schema is a row description. It defines the number of fields (columns) to be processed and passed on to the next component. When you create a Spark Job, avoid the reserved word line when naming the fields.

  • Built-In: You create and store the schema locally for this component only.

  • Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs.

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

  • View schema: choose this option to view the schema only.

  • Change to built-in property: choose this option to change the schema to Built-in for local changes.

  • Update repository connection: 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 No upon completion and choose this schema metadata again in the Repository Content window.

Guess schema

Click this button to retrieve the table schema.

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

Global Variables

NB_LINE: the number of rows read by an input component or transferred to an output component. 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

This component is used as a start component and requires an output link.