Adapters > Using the Adapter for Greenplum > Configuring the Adapter for Greenplum

Configuring the Adapter for Greenplum

Topics:

How to:

Reference:

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Configuring the adapter consists of specifying connection and authentication information for each of the connections you want to establish.

In order to connect to a Greenplum data source, the adapter requires connection and authentication information.

You supply this information using the SET CONNECTION_ATTRIBUTES command. You can:

You can declare connections to more than one Greenplum data source using the SET CONNECTION_ATTRIBUTES commands. The actual connection takes place when the first query is issued. If you issue multiple SET CONNECTION_ATTRIBUTES commands:

Procedure: How to Configure an Adapter

  1. From the Web Console sidebar, click Connect to Data.

    or

    From the Data Management Console, expand the Adapters folder.

    In the DMC, the Adapters folder opens. In the Web Console, the Adapters page opens showing your configured adapters.

  2. In the Web Console, click the New Datasource button on the menu bar and find the adapter on the drop-down list or, in the DMC, expand the Available folder if it is not already expanded.
    On the Web Console, you can select a category of adapter from the drop-down list or use the search option (magnifying glass) to search for specific characters.
  3. In the DMC, expand the appropriate group folder and the specific adapter folder. The group folder is described in the connection attributes reference.
  4. Right-click the adapter name and/or version and select Configure.

    The Add Adapter to Configuration pane opens.

  5. Enter values for the parameters required by the adapter, as described in the chapter for the specific adapter you want to configure.
  6. Click Configure. The configured adapter is added to the Adapters list in the DMC resources tree or the Configured list in the Web Console.
    In the Web Console, the adapter remains on the Available Adapters list with a check mark to indicate that at least one connection has been configured. You can configure additional connections from either the Configured or Available list by right-clicking the adapter and clicking Add Connection.

Reference: Connection Attributes for Greenplum

The Adapter for Greenplum is under the SQL group folder.

The following list describes the connection attributes for which you can supply values. To complete the attribute declaration, click the Configure button.

Connection name

Logical name used to identify this particular set of connection attributes. The default is CON01.

URL

Location URL for the Greenplum data source. The basic syntax is:x

jdbc:pivotal:greenplum://hostname:5432;DatabaseName=database

where:

hostname

Is the computer name or IP address on which the Greenplum database is located.

database

Is the name of the database.

Driver name

Name for the Greenplum driver: com.pivotal.jdbc.GreenplumDriver

See driver documentation for the specific release you are using.

IBI_CLASSPATH

Defines the additional Java Class directories or full-path jar names which will be available for Java Services. Value may be set by editing the communications file or in the Web Console. Using the Web Console, you can enter one reference per line in the input field. When the file is saved, the entries are converted to a single string using colon (:) delimiters for all platforms. OpenVMS platforms must use UNIX-style conventions for values (for example, /mydisk/myhome/myclasses.jar, rather than mydisk:[myhome]myclasses.jar) when setting values. When editing the file manually, you must maintain the colon delimiter.

Security

There are two methods by which a user can be authenticated when connecting to a database server:

  • Explicit. The user ID and password are explicitly specified for each connection and passed to the database, at connection time, for authentication.
  • Password Passthru. The user ID and password received from the client application are passed to the database, at connection time, for authentication.
User

Primary authorization ID by which you are known to the data source.

Password

Password associated with the primary authorization ID.

Select profile

Select a profile from the drop-down menu to indicate the level of profile in which to store the CONNECTION_ATTRIBUTES command. The global profile, edasprof.prf, is the default.

If you wish to create a new profile, either a user profile (user.prf) or a group profile if available on your platform (using the appropriate naming convention), choose New Profile from the drop-down menu and enter a name in the Profile Name field (the extension is added automatically).

Store the connection attributes in the server profile (edasprof).

Syntax: How to Declare Connection Attributes Manually 

ENGINE SQLGPDB SET CONNECTION_ATTRIBUTES connection 
'URL'/userid,password

where:

SQLGPDB

Indicates the adapter. You can omit this value if you previously issued the SET SQLENGINE command.

connection

Is the connection name.

URL

Is the URL to the location of the Greenplum data source.

userid

Is the primary authorization ID by which you are known to the target database.

password

Is the password associated with the primary authorization ID.

Example: Declaring Connection Attributes

The following SET CONNECTION_ATTRIBUTES command connects to a data source using the Greenplum Driver, with an explicit user ID (MYUSER) and password (PASS). To ensure security, specifying connection attributes from the Web Console or Data Management Console will encrypt the password before adding it to the server profile. 

ENGINE SQLGPDB SET CONNECTION_ATTRIBUTES CON1
  'jdbc:xxxxxxx://hostname:port/datasource

Overriding the Default Connection

How to:

If multiple connections have been defined, the connection named in the first SET CONNECTION_ATTRIBUTES command serves as the default connection.

Syntax: How to Change the Default Connection 

ENGINE SQLGPDB SET DEFAULT_CONNECTION connection

where:

You change this setting by expanding the Domains and Reports folders, then right-clicking a subfolder and choosing Metadata. Right-click SQLGPDB and select Change Settings. The Change Settings pane opens.

SQLGPDB

Indicates the adapter. You can omit this value if you previously issued the SET SQLENGINE command.

connection

Is the connection defined in a previously issued SET CONNECTION_ATTRIBUTES command. If this name was not previously declared, the following message is issued: 

FOC1671, Command out of sequence
Note:
  • If you use the SET DEFAULT_CONNECTION command more than once, the connection name specified in the last command serves as the default connection.
  • The SET DEFAULT_CONNECTION command cannot be issued while an uncommitted transaction (LUW) is pending. In that case, the following message is issued: 
    FOC1671, Command out of sequence.

Example: Selecting the Default Connection

The following SET DEFAULT_CONNECTION command selects the database server named SAMPLE as the default database server: 

ENGINE SQLGPDB SET DEFAULT_CONNECTION SAMPLE

Controlling the Connection Scope

How to:

The SET AUTODISCONNECT command controls the persistence of connections when using the adapter for each of the connections you want to establish.

Syntax: How to Control the Connection Scope

x
ENGINE SQLGPDB SET AUTODISCONNECT ON {FIN|COMMIT}

where:

You change this setting by expanding the Domains and Reports folders, then right-clicking a subfolder and choosing Metadata. Right-click SQLGPDB and select Change Settings. The Change Settings pane opens.

SQLGPDB

Indicates the adapter. You can omit this value if you previously issued the SET SQLENGINE command.

FIN

Disconnects automatically only after the session has been terminated. FIN is the default value.

COMMIT

Disconnects automatically only after COMMIT or ROLLBACK is issued as a native SQL command.

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