```
set skip_unavailable_shards=1;
select hostname(), * from cluster('{cluster}', system.one);

Connection failed at try №1,

Connection failed at try №2,

Connection failed at try №3,

Connection failed at try №1,

Connection failed at try №2,

Connection failed at try №3,
```

expected 3 try.
#pragma once
#include <optional>
#include <common/logger_useful.h>
#include <DataStreams/IBlockInputStream.h>
#include <Common/Throttler.h>
#include <Client/ConnectionPool.h>
#include <Client/MultiplexedConnections.h>
#include <Interpreters/Cluster.h>
#include <DataStreams/RemoteQueryExecutor.h>
namespace DB
{
class Context;