Component family |
Internet/MapR Streams | |
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. The properties are stored centrally under the Hadoop Cluster node of the Repository tree. |
tMapRStreamsConnection |
Select the tMapRStreamsConnection component to reuse the connection details you already defined. This parameter is mandatory for this component to connect to MapR Streams. | |
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Action |
Select how a stream or a topic is created. The related parameters to each action are displayed only when this action is selected.
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Stream path |
Enter the path to the stream to be created or updated in MapR-FS. | |
Stream permissions |
Grant the permissions to a user account over the stream to be created or updated. These permissions are about
The syntax you need to use is u:username_or_userid_of_the_account within double quotation marks. When you have selected Alter stream from the Action list, a list of check boxes are displayed in the Stream permissions area so that you can select the check box corresponding to each permission to be changed and then grant this permission to a different user account. For details about these permissions, see MapR documentation at MapR Streams Security. | |
Stream settings |
Define the configuration of the stream to be created or updated. The parameters to be set are
When you have selected Alter stream from the Action list, a list of check boxes are displayed in the Stream settings area so that you can select the check box corresponding to each parameter to be changed and then update this parameter. | |
Topic name |
Enter the name of the topic to be created. This field is displayed when you have selected one of the actions about topics from the Action list. | |
Number of partitions or Set number of partitions |
Enter the number of partitions to be created for the topic. This field is displayed when you have selected one of the actions about topics from the Action list. | |
Advanced settings |
tStatCatcher Statistics |
Select this check box to gather the processing metadata at the Job level as well as at each component level. |
Usage |
This component is used standalone to create or update a topic or a stream to be used by the other MapR Streams components. | |
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 the article Installing External Modules on Talend Help Center (https://help.talend.com) how to configure the Studio in the Talend Installation and Upgrade Guide. |