Method and system for ensuring reliability of unicast video streaming at a video streaming platform

A method implemented in an electronic device serving as a stream distributor distributing unicast video and audio streams of a streaming platform system is disclosed. The stream distributor receives a unicast data flow containing data of a video and audio stream from a load balancer, the unicast data flow being transmitted in user datagram protocol (UDP) packets. The method includes the electronic device detecting initiation of a maintenance activity on a virtual machine or its host associated with the stream distributor. The method includes the electronic device indicating a failure mode of the stream distributor, where the failure mode indication is to cause the load balancer to switch the unicast data flow to an alternate stream distributor. The method also includes the electronic device detecting a completion of the load balancer switching the unicast data flow to the alternate stream distributor, and halting the distribution of the unicast data flow.