Installation of the MongoDB replication requires special configuration of the Source and Target hosts so that each is configured for the correct datasource type.
To configure the Applier replicators:
Before installing the applier, the following additions need adding to the extractor configuration. Apply the following parameter to the extractor configuration before installing the applier
Add the following the /etc/tungsten/tungsten.ini
[alpha] ...Existing Replicator Config... enable-heterogeneous-service=trueshell>tpm update
The above step is only applicable for standalone extractors. If you are configuring replications from an existing Tungsten Cluster (Cluster-Extractor), follow the steps outlined here to ensure the cluster is configured correctly: Section 3.4.1, “Prepare: Replicating Data Out of a Cluster”
Unpack the Tungsten Replicator distribution in staging directory:
shell> tar zxf tungsten-replicator-7.0.3-141.tar.gzChange into the staging directory:
shell> cd tungsten-replicator-7.0.3-141Configure the installation using tpm:
shell>./tools/tpm configure defaults \ --reset \ --install-directory=/opt/continuent \ --profile-script=~/.bash_profile \ --rest-api-admin-user=apiuser \ --rest-api-admin-pass=secretshell>./tools/tpm configure alpha \ --master=sourcehost \ --members=localhost \ --datasource-type=mongodb \ --replication-user=tungsten \ --replication-password=secret \ --svc-applier-filters=dropstatementdata \ --role=slave \ --replication-port=27017
shell> vi /etc/tungsten/tungsten.ini[defaults] install-directory=/opt/continuent profile-script=~/.bash_profile rest-api-admin-user=apiuser rest-api-admin-pass=secret[alpha] master=sourcehost members=localhost datasource-type=mongodb replication-user=tungsten replication-password=secret svc-applier-filters=dropstatementdata role=slave replication-port=27017
Configuration group defaults
The description of each of the options is shown below; click the icon to hide this detail:
For staging configurations, deletes all pre-existing configuration information between updating with the new configuration values.
--install-directory=/opt/continuent
install-directory=/opt/continuent
Path to the directory where the active deployment will be installed. The configured directory will contain the software, THL and relay log information unless configured otherwise.
--profile-script=~/.bash_profile
profile-script=~/.bash_profile
Append commands to include env.sh in this profile script
Configuration group alpha
The description of each of the options is shown below; click the icon to hide this detail:
The hostname of the primary (extractor) within the current service.
Hostnames for the dataservice members
Database type
For databases that required authentication, the username to use when connecting to the database using the corresponding connection method (native, JDBC, etc.).
The password to be used when connecting to the database using
the corresponding
--replication-user.
--svc-applier-filters=dropstatementdata
svc-applier-filters=dropstatementdata
Replication service applier filters
What is the replication role for this service?
The network port used to connect to the database server. The default port used depends on the database being configured.
If you plan to make full use of the REST API (which is enabled by default) you will need to also configure a username and password for API access. This must be done by specifying the following options in your configuration:
rest-api-admin-user=tungsten rest-api-admin-pass=secret
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 Section 4.5.5, “Management and Monitoring of MongoDB Deployments” for more information.