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• The system architecture describes:
  • system boundaries
  • products
  • platforms
  • setup scenarios

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system_architecture system_architecture

System Architecture

• Download: JS7_JobScheduler_System_Architecture.pptx
• Download: JS7_JobScheduler_System_Architecture.pdf
• Use the links above if the document below does not display in your browser.
  
  

System Architecture

JS7 includes the following products:

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• JOC Cockpit and Controller can each implement a passive cluster with an active node and a standby node.
• Agents can be operated standalone or as instances of a JS7 - Agent Cluster which implements active-passive or active-active scheduling.
  
  

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products products

Products

The products interact as described in the slide below:

• The JOC Cockpit implements:
  • the user interface for browser access.
  • the JS7 - REST Web Service API which:
    • is connected to a database and which persistently stores the inventory and the history of workflow executions,
    • performs all operations for managing Controllers,
    • optionally is available from dedicated API Servers.
• The Controller connects to Agents:
  • for JS7 - Deployment of Scheduling Objects of workflows, 
  • to forward orders for workflow execution,
  • to receive execution results from Agents.
• The Agents:
  • execute workflows and jobs,
  • return execution results and log output to the Controller.
    
    

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network_connections network_connections

Network Connections

Network connections are only established in the directions indicated.

• Any connections are unilateral.
• Connections can be secured by TLS/SSL certificates.
  
  

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cluster_architecture cluster_architecture

Cluster Architecture

The JS7 offers a 4-tier architecture with any JS7 products available for clustering:

• Each tier acts as a Cluster Watch in case that the underlying tier requires an arbitrator to decide about the active/standby role.
• Each tier works asynchronously and does not rely on availability of the next tier. This includes absence of any single point of failure.
• The Agent Cluster is represented from both a Director Agent and any number of Subagents that execute tasks.
  • This provides better autonomy to the Agent Cluster as Director Agents can be operated more close to Subagents in the network.
  • Agent Clusters can execute workflows autonomously provided that jobs and dependencies map to Agents in the same cluster.
    
    

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setup_scenarios setup_scenarios

Setup Scenarios

Consider attached slides JS7_JobScheduler_System_Architecture.pdf for further setup scenarios.

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