Process Server supports rolling upgrades. In a rolling upgrade, Process Server services that run on the agents within a Secure Agent group are upgraded sequentially.
Therefore, while Process Server is being upgraded on one agent, the service remains
available on other agents in the group.
Other services that run on the agents within a Secure Agent group are upgraded on each agent
simultaneously. Therefore, they are unavailable while the agents in the group are being
upgraded. They become available again when all agents in the group have been
successfully upgraded.
Example
Your organization uses the following runtime environments:
Secure Agent group A:
Agent A1 runs Data Integration Server and Process Server.
Agent A2 runs Data Integration Server, Mass Ingestion, and Process Server.
Secure Agent group B:
Agent B1 runs Data Integration Server, Mass Ingestion, and Process Server.
Agent B2 runs Data Integration Server, Mass Ingestion, and Process Server.
When your organization is upgraded, Secure Agent groups A and B are upgraded simultaneously. Within each Secure Agent group, Process Server is upgraded sequentially. Therefore, while Process Server is being upgraded on agents A1 and B1, it remains up and running on agents A2 and B2. When the upgrade finishes on agents A1 and B1, Process Server is upgraded on agents A2 and B2.
Data Integration Server and Mass Ingestion do not support rolling upgrades. In groups A and B, Data Integration Server is upgraded on each agent simultaneously. In group B, Mass Ingestion is upgraded on agents B1 and B2 simultaneously.
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