@Override
    public boolean removeWorkflowWithExpiry(String workflowId, int ttlSeconds) {
        throw new UnsupportedOperationException(
                "This method is not currently implemented in CassandraExecutionDAO. Please use RedisDAO mode instead now for using TTLs.");
    }
This is a dummy implementation and this feature is not yet implemented for Cassandra backed
Conductor
cassandra-persistence/src/main/java/com/netflix/conductor/cassandra/dao/CassandraExecutionDAO.java