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The 

The 

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• communicates with the same database
• shares the /opt/trifacta/conf and /opt/trifacta/logs directories through NFS.

• Database: PostGreSQL supports HA. The HA-enabled database runs outside of the cluster of platform nodes and appears to each node as a single database. No application code changes are required.
• Load balancer: HAProxy is used for its capabilities on health checking the other HA nodes. This load balance periodically checks the health of the other nodes in the setup. 
  
  • If the health for a given node fails, then the load balancer stops routing traffic to that node while continuing to poll its health. 
  • If the node recovers, the load balancer resumes sending traffic to it.
  • Node health is described below.
• Synchronized configuration: All nodes share the /opt/trifacta/conf mount point, which allows the same configuration files to be visible and accessible on each node. 

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1. All nodes must meet the system requirements. See System Requirements in the Planning Guide.

2. All nodes must have the appropriate ports opened. See System Ports in the Planning Guide.

3. Install the databases.

   Info
   NOTE: The databases must be installed in a location that is accessible to all nodes.

   Info
   NOTE: When installing databases for high availability access, you should deploy standard access and replication techniques that are consistent with the policies of your enterprise.

    

   See Install Databases in the Databases Guide.

4. Complete the installation process for the server node.

   Info
   NOTE: After install, do not start the D s node .

   See Install Software.

5. Repeat the above process for each of the client nodes.

6. The software is installed on all nodes. No node is running the software.

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