Tungsten Replicator

Install PostgreSQL Applier

Once you have completed the configuration of the PostgreSQL database, you can configure and install the PostgreSQL applier as described using the steps below.

Before installing the applier, the following addition needs adding to the extractor configuration. Apply the following parameters on the extractor host, update the extractor using the details below, and then install the applier
Add the following to /etc/tungsten/tungsten.ini
```
[alpha]
...Existing Replicator Config...
enable-heterogeneous-service=true

shell> tpm update
```
Unpack the Tungsten Replicator distribution in a staging directory:
```
shell> tar zxf tungsten-replicator-8.0.4-132.tar.gz
```
Change into the staging directory:
```
shell> cd tungsten-replicator-8.0.4-132
```
Create the /etc/tungsten/tungsten.ini using the example below as a template.
Example tungsten.ini
```
[defaults]
install-directory=/opt/continuent
user=tungsten
profile-script=~/.bash_profile
rest-api-admin-user=apiuser
rest-api-admin-password=secret
replicator-rest-api-address=0.0.0.0

[alpha]
master=sourcehost
members=localhost,sourcehost
datasource-type=postgresql
postgresql-dbname=dbname
replication-user=tungsten
replication-password=secret
replication-host=remotedbhost
replication-port=5432
```
Show argument definitions
install-directory=/opt/continuentInstallation directory.
user=tungstenOS System User, for example tungsten. DO NOT use root.
profile-script=~/.bash_profileAppend commands to include env.sh in this profile script.
rest-api-admin-user=apiuserSpecify the initial Admin Username for API access.Available from v7.0.0
rest-api-admin-password=secretSpecify the initial Admin User Password for API access. rest-api-admin-password alias only available from version 7.1.2 onwards.Available from v7.0.0
replicator-rest-api-address=0.0.0.0Address for the API to bind too.Available from v7.0.0
Once the prerequisites and configuring of the installation has been completed, the software can be installed:
```
shell> ./tools/tpm install
```

If the installation process fails, check the output of the /tmp/tungsten-configure.log file for more information about the root cause.

Once the replicators have started, the status of the service can be checked using trepctl. See "Management and Monitoring of PostgreSQL Deployments" for more information.