Does the APISIX need to write the configuration to the local disk? The APISIX currently can run without the configuration center, etcd.
But its routes configuration just is stored in the memory. If APISIX runs without etcd or could not connect the etcd (still possible), meanwhile, APISIX has been restarted because of some critical BUG. APISIX will restart with no route configuration which will cause the network failure. On the other hand, other API-Gateway, such as tyk or zuul, will write the configuration to the local disk when it exit.
