If you have not previously installed the DataSync Agent, refer to these steps to Install the DataSync Agent.

Prerequisites


(warning) First, you will need to stop the DataSync Agent.

(warning) Next, make sure that you have backed up your local agent files, namely the files in the conf directory in your Perspectium Replicator Agent directory.

(warning) You will also need to request the latest Agent Installer from Perspectium Support.


Procedure


To start upgrading your DataSync Agent, choose from below:

Upgrade the Agent through command line

Upgrade the Agent through Agent installer


Upgrading the Agent through the command line 


This option is only available for Linux

If you generated an automatic installation script with your previous installation, you can run the installer from the command line and pass the automatic installation file as a parameter. Doing so will cause the installer to run and use all the settings you specified in the previous installation. You will not be prompted for this information. To run the installer with an auto installation script, open a command window and change to the directory where the new installer jar file resides. Next you should locate the auto installation script from your previous install. It is usually in the top directory of the agent installation and if you accepted the default name will be called auto-install.xml.

Once you know the location, copy and paste the auto-intall.xml into the same folder or directory as the perspectium-datasync-installer.jar.

Now you can run the following command making sure to use the correct name of the installer jar file:

java -jar perspectium-replicator-installer.jar auto-install.xml


Upgrading the Agent through the Agent Installer 


Open the Agent Installer

Open the Agent Installer .jar file. If you didn't receive this file, you can request one from Perspectium Support. A pop-up may appear indicating that the Agent Installer file can't be opened because it is from an unidentified developer. If this happens, click OK to close the pop-up and then navigate to System PreferencesSecurity & Privacy. Under the General tab, locate the section beginning with Allow apps downloaded from: and click Open Anyway. Then, click Open in the resulting pop-up to open the Agent Installer wizard.

Accept the End User License Agreement terms

Check the box to accept the terms of the Perspectium End User License Agreement. Then, click Next.

Choose an installation path and JDK/JRE directory

Choose a directory to install the DataSync Agent files in. If you specify a new directory, that directory will first be created and then populated with the Agent files. Then, click Next. On the resulting window, you will be asked to choose the directory where your Java JDK or JRE is installed. In most cases, you can accept the default directory here and then click Next.

(info) NOTE: If you are installing the agent in an existing directory, ensure that you have made backups of your local files.

Choose agent name and replicator type

Type a name for your DataSync Agent; e.g., datasyncforservicenow_to_mysql. Then, choose an option from the Replicator Type dropdown:

Choose...If sharing data to a...
MySQL_ReplicatorMySQL database
MSSQL_ReplicatorMicrosoft SQL database
Oracle_ReplicatorOracle database

Finally, click Next to proceed to the next step.

Enter Perspectium Mesh authentication info

On the resulting page, enter the following to allow your DataSync Agent to authenticate when connecting to the Perspectium Integration Mesh:

FieldInformation to enter
Server

Your Perspectium Integration Mesh URL (excluding "http://", "https://", "amqp://", or "amqps://")

e.g., us-east-3-dev.perspectium.net

UserUsername used to connect to the Perspectium Integration Mesh
Enter Password

Password used to connect to the Perspectium Integration Mesh

(info) NOTE: If you don't know or you forgot your Perspectium Integration Mesh server URL, username, and/or password, contact Perspectium Support.

Retype PasswordPassword used to connect to the Perspectium Integration Mesh
Queue Name

Name of the queue that will store data being shared from your ServiceNow instance to your database. Simply replace the yourqueue text here with the name of your ServiceNow instance; e.g., dev12345

Encryption/Decryption KeyA key of 24+ characters (for base64, TripleDES, and AES-128 encryption) or 32+ characters (for AES-256 encryption), including spaces, which will be used to encrypt data being shared from your ServiceNow instance to your database.
Max ReadsA maximum number of data messages that your DataSync Agent will read from the queue each time messages are processed
Polling Interval (sec)Time period (in seconds) for which your DataSync Agent will process messages from your shared queue

Then, click Next to continue to the next step.

Enter ServiceNow and database connection info

On the resulting page, enter the following information to allow your DataSync Agent to connect to and authenticate with your ServiceNow instance and database server:

FieldInformation to enter
Instance

Your ServiceNow instance URL (excluding "http://" or "https://")

User

Username used to log into your ServiceNow instance (in firstname.lastname format)

Enter Password

Password used to log into your ServiceNow instance

Retype PasswordPassword used to log into your ServiceNow instance
Server

Server URL for the database you will be sharing your ServiceNow instance data to (excluding "http://" or "https://")

PortPort number for your database
UserUsername used to log into your database
Enter PasswordPassword used to log into your database
Retype PasswordPassword used to log into your database
DatabaseName of your database schema

Then, click Next to continue to the next step.

Review and finish installation

On the Summary and Review screen, wait for the processes to finish running and then click Next. Then, on the Perform External Processes screen, wait for the processes to complete and then click Next.

Finally, on the Installation Finished screen, click Done to finish installation of your DataSync Agent.

(info) NOTEOptionally, you can Generate an automatic installation script on this screen and then choose a directory to save your install script in. This script can then be run on another device to install a DataSync Agent with the same settings you've specified here.

The following system files will be installed within the bin/perspectium_data directory and used for temporary storage/caching when your DataSync Agent is running:

  • psp.in.agent.errors
  • psp.in.messageset
  • psp.out.servicenow.INSTANCE_NAME (where INSTANCE_NAME  is from your https://INSTANCE_NAME.service-now.com URL)
  • psp.in.servicenow
  • TableStatsPublisher

A perspectium.log file will also be installed that contains important log messages for your DataSync Agent. For more information, see monitoring DataSync Agent logs.

(info) NOTE: If the files listed above exceed 1 GB in size, you may delete these files to improve your DataSync Agent performance.

Replace files with backups

If you created backups of your files, navigate to the directory where your agent is installed, and replace the configuration files. These will typically be your agent.xml and your log4j.xml files.

(Optional) Validate your Agent configuration

After installing your DataSync Agent, it is highly recommend to confirm that you Agent is configured correctly by running the Agent validateConfiguration tool.

To run the validateConfiguration tool on a Linux device, open a terminal window and change your current directory to the directory where you installed your DataSync Agent files. Then, change your current directory to Perspectium_Replicator_Agent and execute the following command:

bin/validateConfiguration start

To run the validateConfiguration tool on a Windows device, navigate to the bin directory that was installed within the main Agent directory that was specified in Step #3. Then, double-click to run the validateConfiguration.bat file.

Next steps


Start/stop the DataSync Agent