The DataSync Agent will process all data which comes into its queue. This means that by default multiple instances can write to the same queue and the agent will process them all. If you do not want this behavior you can modify your configuration so the agent will only process data from a specific instance and skip the rest.
Prerequisites
First, you will need to set up one of the Perspectium DataSync Agents.
You should stop running your DataSync Agent before making any Agent configuration changes.
Procedure
To set up instance filter for the DataSync Agent, follow these steps:
Open your agent.xml
Add the <key> directive
Add the <key> directive to the <task> directive of your agent.xml. For example if you wanted to only process data from the ServiceNow instance dev12345 than you would put:
<key>dev12345</key>
Save your agent.xml and restart your agent
Example Configuration for DataSync Agent
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<config>
<agent>
<subscribe>
<task>
<task_name>example_subscribe</task_name>
<message_connection password="encrypted:XXXX" user="XXXX" queue="psp.out.replicator.example" >amqp://example.perspectium.net</message_connection>
<instance_connection password="encrypted:XXXX" user="XXXX">http://dev18450.service-now.com</instance_connection>
<handler>com.perspectium.replicator.sql.SQLSubscriber</handler>
<decryption_key>The cow jumped over the moon</decryption_key>
<database_type>mysql</database_type>
<database_server>MyAddress</database_server>
<database_port>3306</database_port>
<database_user>XXXX</database_user>
<database_password>XXXX</database_password>
<database>psp_repl</database>
<key>dev18450</key>
</task>
</subscribe>
<max_reads_per_connect>2000</max_reads_per_connect>
<polling_interval>5</polling_interval>
</agent>
</config>
NOTE: If you have multiple tasks in your agent.xml you should place this tag in each task. You can have one task have one key and a different task with a different key.
