code: func NewIdxConfig() *IdxConfig {
  	return &IdxConfig{
  		Enabled:                  true,
  		hosts:                    "localhost:9042",
  		keyspace:                 "metrictank",
  		consistency:              "one",
  		timeout:                  time.Second,
  		numConns:                 10,
  		writeQueueSize:           100000,
  		updateCassIdx:            true,
  		updateInterval:           time.Hour * 3,
  		pruneInterval:            time.Hour * 3,
  		protoVer:                 4,
  		createKeyspace:           true,
  		schemaFile:               "/etc/metrictank/schema-idx-cassandra.toml",
  		disableInitialHostLookup: false,
  		ssl:                      false,
  		capath:                   "/etc/metrictank/ca.pem",
  		hostverification:         true,
  		auth:                     false,
  		username:                 "cassandra",
  		password:                 "cassandra",
  		initLoadConcurrency:      1,
  	}
  }
docs: // NewIdxConfig returns IdxConfig with default values set.