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1. Log in to the management console using the following URL: https://<DAS_HOST>:<DAS_PORT>/carbon/
2. Click Main, and then click Streams.
3. Click Edit of the corresponding event stream which you want to persist.
4. Click Next [Persist Event].
5. Select Persist Event Stream, and select EVENT_STORE for Record Store.
6. For each of the attribute types, do the following as required to define the schema of the event stream as shown below.
   
• Select Persist Attribute, if you want to persist a particular attribute.
• A facet is a hierarchical implementation of a collection of several categories of attributes within one attribute. Facet attributes allow you to carry out a faceted extended search within the defined categories. If you define an attribute as a facet, you need to send its values for it as a JSON string array

  Select FACET for Attribute Type, if you want to persist an attribute as a facet. 

  Info

  For more information on facets, see Searching Data By Categories.

• Select Primary Key, to define an attribute type as a primary key.

• Select Index Column, to enable an attribute type to be applied in searches.

• Select Score Param, to define an attribute as a score parameter. For more information on score parameters, see Defining Score Parameters Searching Data By Categories.
• Define and add any Arbitrary Data Attributes which you want to persist.
7. Click Save Event Stream to persist the event stream.