Zero Downtime Installation Guide for Oracle

10.3

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Configure and Deploy the Messaging Stream

Configure and deploy the messaging stream on both systems.

In both schemas, configure the messaging stream:

DECLARE
out_error_msg VARCHAR2(32000);
out_return_code INT;
BEGIN
  CMXZDT.CONFIGURE_GGS_EVENT_REPLICAT(CMXZDT.zdt_local);
  CMXZDT.CONFIGURE_GGS_EVENT_EXTRACT(CMXZDT.zdt_local);
  CMXZDT.START_EVENT_QUEUE(out_error_message  => out_error_msg,
                           out_return_code => out_return_code);
  dbms_output.put_line('out_return_code => '||out_return_code||' out_error_msg => '||substr(out_error_msg,1,250));
END;
/

On both systems, run the

info all

command from the ggsci prompt. Verify that all event queue processes are running.

In the source schema, generate ggsci parameter files and GoldenGate processes:

BEGIN
  CMXZDT.CONFIGURE_GGS_EXTRACT(CMXZDT.zdt_local);
END;
 /

In the target schema, generate ggsci parameter files and GoldenGate processes:

BEGIN
  CMXZDT.CONFIGURE_GGS_REPLICAT(CMXZDT.zdt_local);
END;
 /

In both schemas, set sequences so that they do not overlap:

exec cmxzdt.configure_sequences;

This command sets the source schema to even and the target schema to odd to avoid overlaps.

In the source schema, start the PUMP and EXTRACT processes:

DECLARE
out_error_msg VARCHAR2(32000);
out_return_code INT;
begin
  cmxzdt.start_replication_extract(in_env_type => cmxzdt.zdt_local,
                                   out_error_message  => out_error_msg,
                                   out_return_code => out_return_code);
                                   
  dbms_output.put_line('out_return_code => '||out_return_code||' out_error_msg => '||substr(out_error_msg,1,250));
end;
/

In the target schema, start the REPLICATE processes:

DECLARE
out_error_msg VARCHAR2(32000);
out_return_code INT;
begin
  cmxzdt.start_replication_replay(in_env_type => cmxzdt.zdt_local,
                                   out_error_message => out_error_msg,
                                   out_return_code => out_return_code);
                                   
  dbms_output.put_line('out_return_code => '||out_return_code||' out_error_msg => '||substr(out_error_msg,1,250));
end;
/

On both systems, run the

info all

command from the ggsci prompt.

Verify that the

info all

summary displays ten processes, each with a status of RUNNING.

Messaging stream processes have the prefixes EQ, PQ, and RQ.

Data extract processes have the prefixes E_ and P_. These processes extract data from the source system.

Data replication processes have the prefix R_. These processes replicate data on the target system.

The following output shows the processes, with one replication process not running:

GGSCI (hostname) 13> info all

Program     Status      Group       Lag           Time Since Chkpt

MANAGER     RUNNING
EXTRACT     RUNNING     EQENVA       00:00:00      00:00:00
EXTRACT     RUNNING     EQENVB       00:00:00      00:00:00
EXTRACT     RUNNING     E_ENVA       00:00:00      00:00:08
EXTRACT     RUNNING     PQENVA       00:00:00      00:00:09
EXTRACT     RUNNING     PQENVB       00:00:00      00:00:00
EXTRACT     RUNNING     P_ENVA       00:00:00      00:00:01
REPLICAT    RUNNING     RQENVA       00:00:00      00:00:00
REPLICAT    RUNNING     RQENVB       00:00:00      00:00:08
REPLICAT    ABENDED     R_ENVB       169:25:21     00:00:02
REPLICAT    RUNNING     R_ENVBU      00:00:00      00:00:07

If a process is not running, see the log files in the

D:/ggs/dirrpt

directory. There is a separate .dsc and .rpt file for each process. For more information about troubleshooting process errors, see the Oracle GoldenGate documentation for administrators.

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Table of Contents

Zero Downtime Installation Guide for Oracle

Zero Downtime Installation Guide for Oracle

Configure and Deploy the Messaging Stream

Configure and Deploy the Messaging Stream