During single node cluster startup application fails with:
[error] a.c.s.PersistentShardCoordinator - Persistence failure when replaying events for persistenceId [/sharding/kafkaProducer-rawParameterValuesCoordinator]. Last known sequence number 
java.util.concurrent.ExecutionException: com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query at consistency SERIAL (1 replica were required but only 0 acknowledged the write)
Cassandra instance is running in docker container and network connectivity to it seems to be ok. I wonder from where this SERIAL consistency comes from? In my mind this can be set on client side, but i didn’t find any relevant code in akka-persistence-cassandra source. And what could be the reason for this exception.
Cassandra version is 3.11, akka-persistence-cassandra i tryed 0.60 and 0.80.
So far i found that exception happens with CQL: “insert into item.config(property, value) values(?,?) if not exists”. The item is the persistent enty name. I din’t find the place in akka code where this cql is generated and what to do with it. One possibility is to change cassandra config prop write_query_timeout or something else. Question remains why in dev mode with embedded cassandra i don’t receive this exception.