improvement: change suggestion and default for max sqlite DB readers

config.toml

@@ -36,8 +36,9 @@ data_directory = "."
 # Minimum number of SQLite reader connections
 #min_conn = 4
 
-# Maximum number of SQLite reader connections
-#max_conn = 128
+# Maximum number of SQLite reader connections.  Recommend setting this
+# to approx the number of cores.
+#max_conn = 8
 
 [network]
 # Bind to this network address

src/config.rs

@@ -207,7 +207,7 @@ impl Default for Settings {
                 data_directory: ".".to_owned(),
                 in_memory: false,
                 min_conn: 4,
-                max_conn: 128,
+                max_conn: 8,
             },
             network: Network {
                 port: 8080,