Error - cannot achieve consistency level Serial when updating a service


Has anyone else come across this issue ?

Setup: Cassandra - 3 nodes, RF -3, in Kong.Conf - consistency_level is ONE

When 2 of 3 C* nodes are down, and when I try to update a service, i get this error: " [kong] init.lua:97 could not execute update query: [Unavailable exception] Cannot achieve consistency level SERIAL". Seems like a different consistency level(SERIAL) is used in this particular case instead of using the one specified in kong.conf (ONE)

After some more testing, it seems, consistency_level SERIAL is used by kong for all PATCH requests and consistency_level QUORUM is used by kong for all POST requests.