To ensure fault tolerance in case of failure of the server-it is possible to use several servers running in High-availability mode.
Consider the mode of operation of 2 servers with slave mode - adapters and channels remain inactive while the main process is running. Set up 2 Astra servers to broadcast multicast. The channels and their output settings are the same between 192.168.1.1 and 192.168.1.2 servers. On the server 192.168.1.2 run the Astra with these parameters:
astra -c /etc/astra/astra.conf -p 8000 --slave http://192.168.1.1:8000
This command will start Astra and will constantly monitor the process on the server 192.168.1.1 As soon as the connection with him will be lost - Astra to run all the channels to work.
If the master server appears on the network - the channels and the receiving process stops-and Astra goes into standby mode.