RUST-823 Reduce default max_pool_size to 10 (#346)

Author: patrickfreed

src/cmap/mod.rs

@@ -40,7 +40,7 @@ use worker::ConnectionPoolWorker;
 #[cfg(test)]
 use self::worker::PoolWorkerHandle;
 
-const DEFAULT_MAX_POOL_SIZE: u32 = 100;
+const DEFAULT_MAX_POOL_SIZE: u32 = 10;
 
 /// A pool of connections implementing the CMAP spec. All state is kept internally in an `Arc`, and
 /// internal state that is mutable is additionally wrapped by a lock.

src/cmap/options.rs

@@ -57,7 +57,7 @@ pub(crate) struct ConnectionPoolOptions {
     /// The maximum number of connections that the pool can have at a given time. This includes
     /// connections which are currently checked out of the pool.
     ///
-    /// The default is 100.
+    /// The default is 10.
     pub(crate) max_pool_size: Option<u32>,
 
     /// The minimum number of connections that the pool can have at a given time. This includes