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

in my case, I got a message 0 available, but cassandra was up and cqlsh worked correctly, the problem was accessing from java: query was for a complete table, and some records were not accesible (all nodes containing them down). From cqlsh, select * from table works, only shows accesible records. So, the solution is to recover down nodes, and maybe to change replication factors with:

 ALTER KEYSPACE ....
nodetool repair -all 

then nodetool status to see changes and cluster structure