Not enough replica available for query at consistency ONE (1 required but only 0 alive)

Question

I have a Cassandra cluster with three nodes, two of which are up. They are all in the same DC. When my Java application goes to write to the cluster, I get an error in my applic

Answer 1

I hit this today because the datacenter field is case sensitive. If your dc is 'somedc01' this isn't going to work:

replication = 
    {
        'class': 'NetworkTopologyStrategy',
        'SOMEDC01': '3'  #  <-- BOOM!
    }
    AND durable_writes = true;

Anyway, it's not that intuitive, hope this helps.