Recommended Deployment
The addition of dedicated index servers further improves search high availability, as well as the load-balancing of queries. A second build group increases document processing volume.
The figures below show how failover works.
Context:
Important:
When the primary server is off, you are still able to make queries on the
secondary server, but page thumbnails and previews no longer display. This
behavior is normal since both thumbnails and previews call the Connector Server
to retrieve file content, and this server is only present in the primary server
chain by default. To make page thumbnails and previews available, the solution consists in deploying two full identical chains on both primary and secondary servers, with 1 Connector Server + 1 build group + 1 Search Server. |