# haasync

> This sample demonstrates eXtremeDB High Availability in asynchronous mode.

### How to Run

> In a console window run:

>         ReplMaster

> Then in a second console window run:

>         ReplSlave

> It is also possible to run replica applications in synchronous mode even if the master is running asynchronously. To do this the `MCO_HAMODE_FORCE_SYNC` flag must be set in the replica. This is demonstrated in the C sample `haasync-rplsync`. In a third console window run:

>         haasync-rplsync <Enter>

> But it is more instructive to run one instance in your development environment debugger, stepping through the code.