Configuring the System for the CBS (SAP Library)

Configuring the System for the CBS

For some of the steps mentioned below, you need the Visual Admin Tool of the J2EE Engine. On Windows platforms, you start the admin tool using the batch file: <drive>:\usr\sap\<SAPSID>\JC<instance number>\j2ee\admin\go.bat

(<drive> specifies the drive on which the J2EE Engine is installed).

Note

On other platforms like Unix and Linux, the file path doesn’t start with a drive name. When the administrator tool is up, choose Connect ® Login from the menu. Then enter login data and choose Connect.

JDBC Connector Service Parameters

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1. Adapt the following JDBC connector service parameters:

JDBC Connector Service Parameters Settings

Parameter	Meaning	Proposed Value
sysDS.maximumConnections	Maximum number of connections that can be used at the same time	50

If you are running CBS on a J2EE cluster, then several server nodes must be considered. For simplicity, Server <node> is used as placeholder for the various server nodes in the course of this section.

2. Start the Visual Admin Tool as mentioned above

3. Go to node Server <node> ® Services ® JDBC connector and select the Properties tab.

4. Set the value of key sysDS.maximumConnections to 50.

This value should be less than the DB configuration parameter MAXUSERTASKS (see below).

5. Save the settings

The service will be restarted automatically. To be sure you can restart the J2EE instance afterwards.

Database Parameters

Both CBS and DTR use a database for data storage. Therefore it is very important that enough disk space is available for database data and logs.

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1. Check regularly during operation if there is still enough space for the data volume and log volume to grow.

With regard to data volume and log volume (at least) two cases have to be distinguished:

a. Database is used for CBS only: In this case, a data volume size of 2 GB is sufficient as start size.

However, the proposed value for the data volume is not sufficient if a very large number of components are built on CBS. The log volume for CBS is not as critical as for DTR (see below).

b. Database is used for CBS and DTR: If both CBS and DTR use the same database for data storage, the data volume should be at least 5 GB as start size.

However, the proposed value for the data volume is not sufficient if a very large number of components are built on CBS and a very large number of files are stored in DTR.

Note

Since DTR is the primary storage for source code in the SAP NetWeaver Java Development Infrastructure and all DTR data is stored in the database, it is vital to properly set up database logs and to do regular backups to prevent any loss of data in case of system failures.

For best performance and safety, the database log volumes should be located on other physical disks than the data volumes and the CBS temp folder.

For more information on the DTR administration, refer to Structure link Administration of the Design Time Repository Server.

Note

For the proper setup of database logs and regular backups, refer to your database administration manual..

Proposed database Parameters

The database parameters for the supported database platforms correspond to the settings required for the Design Time Repository server. For more information, refer to Structure link CBS Buildspace.

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Data/Log Volume

You can increase the data / log volume by creating a new volume. The volume size can be changed at creation time only. If data volume size and data log size are exceeded, CBS will not work correctly, as access to the database will fail (especially when new data is inserted into the database).

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1. To change the data volume, go to Configuration ® Volumes and choose Data.

2. Regarding the log volume, go to Configuration ® Volumes and choose Log.

Note

All the above parameter changes (except creation of new data / log volume) require a database restart. Take care to stop the J2EE engine, restart the database and then restart the J2EE engine.