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Alpha panics when started without its Zero node #2289
When starting up an Alpha node without its associated Zero, Alpha will try to connect to Zero several times, then panic with a message like
This makes it hard to keep a Dgraph cluster running reliably, because Alpha servers can't be trusted to stay up. Even if a watchdog like monit or systemd watches Alpha, it may conclude after several repeat crashes that the service is truly broken and should not be restarted. May I suggest having Alpha retry forever, instead of panicking?
I think this might also make it possible to start Zero and Alpha concurrently, which would simplify cluster startup. :)