Add some options to r2d2 pool

src/main.rs

@@ -46,7 +46,14 @@ fn main() {
  let redis_connstring = var("REDIS_CONNSTRING").unwrap_or_else(|_| String::from("redis://localhost"));
  let manager = r2d2_redis::RedisConnectionManager::new(&*redis_connstring).unwrap();
  let pool = r2d2::Pool::builder()
+ // At least 1 connection must be active
+ .min_idle(Some(2))
+ // Try to get a connection for max 1 second
  .connection_timeout(Duration::from_secs(1))
+ // Don't log errors directly.
+ // They can get quite verbose, and we're already catching and
+ // logging the corresponding results anyways.
+ .error_handler(Box::new(r2d2::NopErrorHandler))
  .build(manager)
  .unwrap();