Page 202 - HMRC - CCTTT

Deployment

Launch Process

• On Multi-Tier apps all nodes are
launched in parallel
• All Services on a Multi-Tier app are
launched sequentially based on
topology modeller dependencies
defined.
• Example
− The Apache Node(VM) & MySQL
Node(VM) are launched in parallel
− The MySQL Node (Tier 1) will
execute all steps as the Apache
Node is dependent on the MySQL
Node
− Once complete the Apache Node
(Tier 2) will execute all steps.

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