JobScheduler Universal Agent - Can be operated for a Synology NAS

Prerequisites

The JobScheduler Universal Agent is operated with a Java Virtual Machine starting. The Synology NAS should support
- Java SE Embedded 8 (JRE) or a newer version.
The JobScheduler Universal Agent is pure Java, therefore no further requirements concerning operating system or architecture apply.

For Synology NAS devices that are not equipped with Java a package for simplified installation is provided by PCLoadLetter, see Java SE Embedded package for Synology NAS
- Download Java SE Embedded for your processor architecture
- Follow the instructions from the article to install Java.
The Universal Agent is installed in the same way as for any Unix platform:
- Download JobScheduler Universal Agent for Unix
- Extract the Universal Agent from the tar file.
- Install and Operate the Agent.

The Agent can be started manually by running the start script from the bin sub-directory:
./jobschduler_agent.sh start
The Agent is stopped accordingly with
./jobscheduler_agent.sh stop

To make the Universal Agent run on start-up of the Synology NAS follow these steps:

Copy the start script jobscheduler_agent.sh to /usr/syno/etc/rc.d
- A different target directory might be used depending on the version of the Synology NAS.
Prefix the name of the start script like this S99jobscheduler_agent.sh
- This will make the Universal Agent
  - start after other services are up and running.
  - terminate before other services are stopped.
Check that the the start script is executable.
Set the following environment variables in the start script:
- SCHEDULER_HOME
  - This variable points to the installation directory of the Universal Agent.
  - This variable is not required when running the start script from the bin folder of the Universal Agent installation directory.
- JAVA_HOME
  - This variable points to the Java installation directory.
  - This variable is required should Java not be available in the PATH when the daemon is started.

To check if the Universal Agent is up and running

In your browser open the URL http://<diskstation>:4445//jobscheduler/agent/api/
- <diskstation>: is the hostname of your Synology NAS.
- 4445: is the port that the Universal Agent is listening for. The port number can be freely assigned when starting the Universal Agent.
In response you should receive a page with text information about the Universal Agent release, start time, running tasks etc.

Should the Universal Agent not be started then check the log file from the ./logs folder of the installation directory.