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The Power of High Availability Connectivity Agent by Antony Reynolds

Juergen Kress
PaaS Partner Adoption


High Availability with Oracle Integration Connectivity Agent

You want your systems to be resilient to failure and within Integration Cloud Oracle take care to ensure that there is always redundancy in the cloud based components to enable your integrations to continue to run despite potential failures of hardware or software.  However the connectivity agent was a singleton until recently.  That is no longer the case and you can now run more than one agent in an agent group.

Of Connections, Agent Groups & Agents

An agent is a software component installed on your local system that "phones home" to Integration Cloud to allow message transfer between cloud and local systems without opening any firewalls.  Agents are assigned to agent groups which are logical groupings of agents.  A connection may make use of an agent group to gain access to local resources.

The feature flag oic.adapter.connectivity-agent.ha allows two agents per agent group.  This provides an HA solution for the agent, if one agent fails the other continues to process messages.

Agent Networking

Agents require access to Integration Cloud using HTTPS, note that the agent may need to use a proxy to access Integration Cloud.  This allows them to check for messages to be delivered from the cloud to local systems or vice versa.  When using multiple agents in an agent group it is important that all agents in the group can access the same resources across the network.  Failure to do this can cause unexpected failure of messages. Read the complete article here.

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Comments ( 2 )
  • AMIT SINGH Monday, October 12, 2020
    Does this also support for file polling? It seems we have a file poller which stops polling when we have both agents are running in a HA mode.
  • AMIT SINGH Monday, October 12, 2020
    does this work for file polling for File adapter with FTP agent. We installed agent in HA mode and we are getting a file lock
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