Remote Scheduler Agent Installation for Oracle 11g Release 2
The remote scheduler agent was introduced in Oracle 11g Release 1 to allow remote external jobs. In Oracle 11g Release 2 it has been extended to include remote database jobs also. This article is an update of the installation described here.
Before we can install the agent we need to do some configuration on the database server that will be initiating all the scheduled jobs. Remember, this is a one-time configuration of the controlling server.
Enable shared server by setting the
SHARED_SERVERS initialisation parameter to a none-zero value.
SQL> CONN / AS SYSDBA Connected. SQL> ALTER SYSTEM SET SHARED_SERVERS=1; System altered. SQL>
Make sure the scheduler's default timezone is set correctly.
BEGIN DBMS_SCHEDULER.set_scheduler_attribute( attribute => 'default_timezone', value => 'Europe/London'); END; /
Check XML DB is installed and has the HTTP port set. If the following command returns an "object does not exist" error, XML DB is not installed on the database and must be installed before you proceed.
SQL> CONN / AS SYSDBA Connected. SQL> DESC RESOURCE_VIEW
If XML DB is already installed, check the HTTP port has been set using the
GETHTTPPORT function in the
CONN / AS SYSDBA SELECT DBMS_XDB.gethttpport FROM dual; GETHTTPPORT ----------- 8080 1 row selected. SQL>
If it is not set, set it using the
CONN / AS SYSDBA EXEC DBMS_XDB.sethttpport(8080);
Run the "prvtrsch.plb" script, located in the "$ORACLE_HOME/rdbms/admin" directory.
CONN / AS SYSDBA @?/rdbms/admin/prvtrsch.plb
Finally, set a password for the scheduler agent registration using the
Oracle Scheduler Agent Installation
Once the server configuration is complete, we need to install the Oracle Scheduler Agent on the machine we wish to run remote jobs against. In 11g Release 1 the agent software was on the Transparent Gateways disk, but in Release2 it is now on the Database Client disk, available from Oracle Technology Network. Start the installer using the following command, then proceed with the installation.
Select the "Custom" option and click the "Next" button.
Select the languages you require and click the "Next" button.
Enter the appropriate ORACLE_BASE and ORACLE_HOME, then click the "Next" button.
Select the "Oracle Scheduler Agent", then click the "Next" button.
Enter the name of the server you are installing the agent on and the port you would like the agent to listen on, then click the "Next" button.
Wait while the prerequisite checks take place. Correct any errors or check the "Ignore All" checkbox, then click the "Next" button.
If you are happy with the summary information click the "Finish" button.
Wait while the installation takes place. When prompted, run the configuration script as the root user, then click the "OK" button.
Click the "Close" button to exit the installer.
Once the agent installation is complete, register it against any databases wishing to run external jobs on this machine using the
schagent utility, passing in the hostname of the database and the HTTP port of XML DB. The
schagent utility is present in the "$ORACLE_HOME/bin" directory of the agent installation.
$ cd /u01/app/oracle/product/11.2.0/tg_1/bin $ ./schagent -registerdatabase oel5-11gr2.localdomain 8080 Agent Registration Password ? ************* * Oracle Scheduler Agent Registration for 11.2 Agent Agent Registration Successful! $>
schagent utility is also used to stop and start the agent on UNIX style platforms.
$ ./schagent -stop $ ./schagent -start
On Windows platforms, simply stop and start the <home-name>_OracleSchedulerExecutionAgent service.
The agent configuration information is stored in the "$ORACLE_HOME/schagent.conf" file.
The agent is now ready for use with remote external or database jobs.
Scheduler Features List
Here are quick links to articles on scheduler features that span multiple versions.
For more information see:
- Using the Oracle Scheduler Agent to Run Remote Jobs
- All Scheduler Articles
- Scheduler Quick Links : 10gR1, 10gR2, 11gR1, 11gR2, 12cR1, 12cR2
Hope this helps. Regards Tim...