Application Service Guide > Metadata Access Service > Metadata Access Service Properties
  

Metadata Access Service Properties

To view the Metadata Access Service properties, select the service in the Domain Navigator and click the Properties view. You can change the properties while the service is running, but you must restart the service for the properties to take effect.

General Properties

The following table describes the general properties for the service:
Property
Description
Name
Name of the service. The name is not case sensitive and must be unique within the domain. It cannot exceed 128 characters or begin with @. It also cannot contain spaces or the following special characters:
` ~ % ^ * + = { } \ ; : ' " / ? . , < > | ! ( ) ] [
Description
Description of the service. The description cannot exceed 765 characters.
Location
Domain and folder where the service is created. Click Browse to choose a different folder. You can move the service after you create it.
License
License object that allows use of the service.
Node
Node on which the service runs.
Backup Nodes
If your license includes high availability, nodes on which the service can run if the primary node is unavailable.

Execution Options

The following table describes the execution options for the Metadata Access Service:
Property
Description
Use Operating System Profiles and Impersonation
If enabled, the Metadata Access Service uses the operating system profiles to access the Hadoop cluster.
Hadoop Kerberos Service Principal Name
Service Principal Name (SPN) of the Metadata Access Service to connect to a Hadoop cluster that uses Kerberos authentication.
Not applicable for the MapR distribution.
Hadoop Kerberos Keytab
The file path to the Kerberos keytab file on the machine on which the Metadata Access Service runs.
Not applicable for the MapR distribution.
Use logged in user as impersonation user
Required if the Hadoop cluster uses Kerberos authentication. If enabled, the Metadata Access Service uses the impersonation user to access the Hadoop environment. Default is false.

HTTP Configuration Properties

The following table describes the HTTP configuration properties for the service:
Property
Description
HTTP Protocol Type
Security protocol that the Metadata Access Service uses. Select one of the following values:
  • - HTTP. Requests to the service must use an HTTP URL.
  • - HTTPS. Requests to the service must use an HTTPS URL.
When you set the HTTP protocol type to HTTPS, you enable Transport Layer Security (TLS) for the service. You must configure the HTTP or HTTPS port for each service process.
Default is HTTP.

Logging Options

The following table describes the log level properties:
Property
Description
Log Level
Configure the Log Level property to set the logging level. The following values are valid:
  • - Fatal. Writes FATAL messages to the log. FATAL messages include nonrecoverable system failures that cause the service to shut down or become unavailable.
  • - Error. Writes FATAL and ERROR code messages to the log. ERROR messages include connection failures, failures to save or retrieve metadata, service errors.
  • - Warning. Writes FATAL, WARNING, and ERROR messages to the log. WARNING errors include recoverable system failures or warnings.
  • - Info. Writes FATAL, INFO, WARNING, and ERROR messages to the log. INFO messages include system and service change messages.
  • - Trace. Write FATAL, TRACE, INFO, WARNING, and ERROR code messages to the log. TRACE messages log user request failures.
  • - Debug. Write FATAL, DEBUG, TRACE, INFO, WARNING, and ERROR messages to the log. DEBUG messages are user request logs.

Custom Properties

Configure custom properties that are unique to specific environments.
You might need to apply custom properties in special cases. When you define a custom property, enter the property name and an initial value. Define custom properties only at the request of Informatica Global Customer Support.