We use 'LastStartTime' in backends list to check whether there is an unexpected restart of BE, but it will be changed as BE's first heartbeat time after FE restarted, it would be better to set it to BE's actual start time.
We use 'LastStartTime' in backends list to check whether there is an unexpected restart of BE, but it will be changed as BE's first heartbeat time after FE restarted, it would be better to set it to BE's actual start time.