From b419f838d37062bd218cf676e13a8f9a122dcd01 Mon Sep 17 00:00:00 2001
From: Alexey Arno <af-arno@yandex-team.ru>
Date: Fri, 16 Jan 2015 13:48:53 +0300
Subject: [PATCH] dbms: Server: queries with several replicas: development
 [#METR-14410]

---
 dbms/include/DB/Client/ConnectionPool.h              | 4 ++++
 dbms/include/DB/DataStreams/RemoteBlockInputStream.h | 2 --
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/dbms/include/DB/Client/ConnectionPool.h b/dbms/include/DB/Client/ConnectionPool.h
index 6e0acd1354c..062c83b5a33 100644
--- a/dbms/include/DB/Client/ConnectionPool.h
+++ b/dbms/include/DB/Client/ConnectionPool.h
@@ -28,6 +28,10 @@ public:
 	typedef PoolBase<Connection>::Entry Entry;
 	virtual Entry get(Settings * settings = nullptr) = 0;
 
+	/** Выделяет до указанного количества соединений для работы. 
+	  * Соединения предоставляют доступ к разным репликам одного шарда.
+	  * Выкидывает исключение, если не удалось выделить ни одного соединения.
+	  */
 	virtual std::vector<Entry> getMany(Settings * settings = nullptr) 
 	{
 		return std::vector<Entry>{ get(settings) };
diff --git a/dbms/include/DB/DataStreams/RemoteBlockInputStream.h b/dbms/include/DB/DataStreams/RemoteBlockInputStream.h
index 326fe56579a..1b7070b2edc 100644
--- a/dbms/include/DB/DataStreams/RemoteBlockInputStream.h
+++ b/dbms/include/DB/DataStreams/RemoteBlockInputStream.h
@@ -164,8 +164,6 @@ protected:
 					use_many_replicas = false;
 					connection = &*entries[0];
 				}
-				else // XXX Придумать исключение + сообщение
-					throw Exception("");
 			}
 			else
 			{