Fast Mirror Mode

When you use the DAH only for requesting information from child servers, you can run it in fast mirror mode to improve performance.

In fast mirror mode, DAH does not perform any extra processing on actions. It simply distributes actions between child servers, either with load balancing or failover. In this case, you can use DAH only for requesting information from child servers.

When running the DAH in fast mirror mode:

  • You must not send state-changing actions to the DAH. For example, you must not use the action parameters Delete, State, StoreState and so on.

  • You must not use actions that require DAH to perform extra processing on actions. For example, you must not use the action parameters Template, EncryptResponse, Output and so on.

  • You must not use action parameters that use document IDs (such as the ID parameter).

  • You must not use distributed actions (actions sent to all child servers) or asynchronous actions.