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.

Action

Select how a stream or a topic is created. The related parameters to
each action are displayed only when this action is selected.

• Create stream: it creates a
  stream. If this stream exists already, the entire Job is
  stopped.

• Create stream if not exists:
  it creates a stream when this stream does not exist. If this
  stream exists, the Job skip the creation to move to the next
  step.

• Alter stream: it changes the
  configuration of a stream.

• Create topic: it creates a
  topic. If this topic exists already, the entire Job is
  stopped.

  Note that the stream to which this topic belongs must already
  exist.

• Create topic if not exists:
  it creates a topic when this topic does not exist. If this topic
  exists, the Job skip the creation to move to the next
  step.

  Note that the stream to which this topic belongs must already
  exist.

• Alter topic: it changes the
  configuration of a topic.

Stream path

Enter the path to the stream to be created or updated in
MapR-FS.

Stream permissions

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

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.

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.

tStatCatcher Statistics

Select this check box to gather the processing metadata at the Job
level as well as at each component level.

Usage rule

This component is used standalone to create or update a topic or a
stream to be used by the other MapR Streams components.

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. You can find more details about how to install external modules in
Talend Help Center (https://help.talend.com).