I know one of the last technical issues reported to us had mentioned breakdown when approaching 900th
You keep repeating this, without providing proof when asked several times ... well here is that message:
"Datacenter connectivity issues have caused short drop in the hashrate. The problem has been resolved and all stratum servers are now reachable. This all happened when 900 Th/s was within a reach. We will get there again with your support and participation in mining ;-)"
So where does it mention database? Where you read that the pool can't keep up with 900Th ?