tPaloInputMulti Standard properties

Use an existing connection

Select this check box and in the Component List drop-down list, select the desired connection component to reuse the connection details you already defined.

Note that when a Job contains the parent Job and the child Job, Component List presents only the connection components in the same Job level.

Host Name

Enter the host name or the IP address of the host server.

Server Port

Type in the listening port number of the Palo server.

Username and Password

Enter the Palo user authentication data.

To enter the password, click the [...] button next to the password field, and then in the pop-up dialog box enter the password between double quotes and click OK to save the settings.

Database

Type in the name of the database where the elements of interest reside.

Cube

Type in the name of the cube where the dimension elements to be retrieved are stored.

Cube type

Select the cube type from the drop-down list for the cube of concern. This type may be:

- Normal

- Attribut

- System

- User Info

Commit size

Type in the row count of each batch to be retrieved.

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.

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.

Built-in: The schema is created and stored locally for this component only. Related topic: see Talend Studio User Guide.

Repository: The schema already exists and is stored in the Repository, hence can be reused. Related topic: see Talend Studio User Guide.

Cube Query

Complete this table with the query you want to use to retrieve data. The columns to be filled are:

Column: the schema columns are added automatically to this column once defined in the schema editor. The schema columns are used to stored the retrieved dimension elements.

Dimensions: type in each of the dimension names of the cube from which you want to retrieve dimension elements.

Elements: type in the dimension elements from which data is retrieved. If several elements are needed from one single dimension, separate them with a comma.

tStat Catcher Statistics

Select this check box to collect log data at the component level.

Global Variables

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 rule

This component requires an output component.

Connections

Outgoing links (from this component to another):

Row: Main

Trigger: Run if; On Subjob Ok; On Subjob Error; On Component Ok; On Component Error.

Incoming links (from one component to this one):

Row: Iterate

Trigger: Run if; On Subjob Ok; On Subjob Error; On Component Ok; On Component Error.

For further information regarding connections, see Talend Studio User Guide.

Limitation

According to the architecture of OLAP-Systems only one single value (text or numeric) could be retrieved from the cube. The MEASURE column and the TEXT column are fixed and read-only.

Due to license incompatibility, one or more JARs required to use this component are not provided. You can install the missing JARs for this particular component by clicking the Install button on the Component tab view. You can also find out and add all missing JARs easily on the Modules tab in the Integration perspective of your studio. For details, see Installing external modules. You can find more details about how to install external modules in Talend Help Center (https://help.talend.com).