The Oracle GoldenGate Manager performs a number of functions like starting the other GoldenGate processes, trail log file management and reporting.
The Manager process needs to be configured on both the source as well as target systems and configuration is carried out via a parameter file just as in the case of the other GoldenGate processes like Extract and Replicat.
After installation of the software, we launch the GoldenGate Software Command Interface (GGSCI) and issue the following command to edit the Manager parameter file
EDIT PARAMS MGR
The only mandatory parameter that we need to specify is the PORT which defines the port on the local system where the manager process is running. The default port is 7809 and we can either specify the default port or some other port provided the port is available and not restricted in any way.
Some other recommended optional parameters are AUTOSTART which which automatically start the Extract and Replicat processes when the Manager starts.
The USERID and PASSWORD parameter and required if you enable GoldenGate DDL support and this is the Oracle user account that we created for the Manager(and Extract/Replicat) as described in the earlier tutorial.
The Manager process can also clean up trail files from disk when GoldenGate has finished processing them via the PURGEOLDEXTRACTS parameter. Used with the USECHECKPOINTS clause, it will ensure that until all processes have fnished using the data contained in the trail files, they will not be deleted.
The following is an example of a manager parameter file
[oracle@redhat346 ggs]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 10.4.0.19 Build 002
Linux, x64, 64bit (optimized), Oracle 11 on Sep 17 2009 23:51:28
Copyright (C) 1995, 2009, Oracle and/or its affiliates. All rights reserved.
GGSCI 2> EDIT PARAMS MGR
USERID ggs_owner, PASSWORD ggs_owner
PURGEOLDEXTRACTS /u01/oracle/ggs/dirdat/ex, USECHECKPOINTS
The manager can be stopped and started via the GSSCI commands START MANAGER and STOP MANAGER .
Information on the status of the Manager can be obtained via the INFO MANAGER command
GGSCI (devu007) 4> info manager
Manager is running (IP port devu007.7809).