tPaloDatabase - 6.1

Talend Components Reference Guide

EnrichVersion
6.1
EnrichProdName
Talend Big Data
Talend Big Data Platform
Talend Data Fabric
Talend Data Integration
Talend Data Management Platform
Talend Data Services Platform
Talend ESB
Talend MDM Platform
Talend Open Studio for Big Data
Talend Open Studio for Data Integration
Talend Open Studio for Data Quality
Talend Open Studio for ESB
Talend Open Studio for MDM
Talend Real-Time Big Data Platform
task
Data Governance
Data Quality and Preparation
Design and Development
EnrichPlatform
Talend Studio

tPaloDatabase Properties

Component family

Business Intelligence/Cube OLAP/Palo

 

Function

This component creates, drops or recreates databases in a given Palo server.

Purpose

This component manages the databases inside a Palo server.

Basic settings

Use an existing connection

Select this check box and in the Component List click the relevant connection component to reuse the connection details you already defined.

Note

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

Connection configuration

Note

Unavailable when using an existing connection.

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 on which the given operation should take place.

 

Action on database

Select the operation you want to perform on the database of interest:

- Create database: the database does not exist and will be created.

- Create database if not exists: the database is created when it does not exist.

- Delete database if exists and create: the database is deleted if exist and a new one is then created.

- Delete database: the database is removed from the server

Advanced settings

tStat Catcher Statistics

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

Global Variables

DATABASENAME: the name of the database. This is an After variable and it returns a string.

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.

Connections

Outgoing links (from this component to another):

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.

Usage

This component can be used in standalone for database management in a Palo server.

Log4j

If you are using a subscription-based version of the Studio, the activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.

Limitation

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 https://help.talend.com/display/KB/How+to+install+external+modules+in+the+Talend+products or the section describing how to configure the Studio in the Talend Installation Guide.

Scenario: Creating a database

The Job in this scenario creates a new database on a given Palo server.

To replicate this scenario, proceed as follows:

  1. Drop tPaloDatabase from the component Palette onto the design workspace.

  2. Double-click the tPaloDatabase component to open its Component view.

  3. In the Host name field, type in the host name or the IP address of the host server, localhost for this example.

  4. In the Server Port field, type in the listening port number of the Palo server. In this scenario, it is 7777.

  5. In the Username field and the Password field, type in the authentication information. In this example, both of them are admin.

  6. In the Database field, type in the database name in which you want to create the cube, talenddatabase in this example.

  7. In the Action on database field, select the action to be performed. In this scenario, select Create database as the database to be created does not exist.

  8. Press F6 to run the Job.

A new database is created on the given Palo server.