mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-18 12:22:12 +00:00
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
#include <Interpreters/ClusterProxy/executeQuery.h>
|
|
#include <Interpreters/ClusterProxy/IStreamFactory.h>
|
|
#include <Core/Settings.h>
|
|
#include <Interpreters/Context.h>
|
|
#include <Interpreters/Cluster.h>
|
|
#include <Interpreters/IInterpreter.h>
|
|
#include <Parsers/queryToString.h>
|
|
#include <Interpreters/ProcessList.h>
|
|
#include <Processors/Pipe.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
namespace ClusterProxy
|
|
{
|
|
|
|
Context removeUserRestrictionsFromSettings(const Context & context, const Settings & settings)
|
|
{
|
|
Settings new_settings = settings;
|
|
new_settings.queue_max_wait_ms = Cluster::saturate(new_settings.queue_max_wait_ms, settings.max_execution_time);
|
|
|
|
/// Does not matter on remote servers, because queries are sent under different user.
|
|
new_settings.max_concurrent_queries_for_user = 0;
|
|
new_settings.max_memory_usage_for_user = 0;
|
|
/// This setting is really not for user and should not be sent to remote server.
|
|
new_settings.max_memory_usage_for_all_queries = 0;
|
|
|
|
/// Set as unchanged to avoid sending to remote server.
|
|
new_settings.max_concurrent_queries_for_user.changed = false;
|
|
new_settings.max_memory_usage_for_user.changed = false;
|
|
new_settings.max_memory_usage_for_all_queries.changed = false;
|
|
|
|
if (settings.force_optimize_skip_unused_shards_no_nested)
|
|
{
|
|
new_settings.force_optimize_skip_unused_shards = 0;
|
|
new_settings.force_optimize_skip_unused_shards.changed = false;
|
|
}
|
|
|
|
Context new_context(context);
|
|
new_context.setSettings(new_settings);
|
|
|
|
return new_context;
|
|
}
|
|
|
|
Pipes executeQuery(
|
|
IStreamFactory & stream_factory, const ClusterPtr & cluster,
|
|
const ASTPtr & query_ast, const Context & context, const Settings & settings, const SelectQueryInfo & query_info)
|
|
{
|
|
Pipes res;
|
|
|
|
const std::string query = queryToString(query_ast);
|
|
|
|
Context new_context = removeUserRestrictionsFromSettings(context, settings);
|
|
|
|
ThrottlerPtr user_level_throttler;
|
|
if (auto process_list_element = context.getProcessListElement())
|
|
user_level_throttler = process_list_element->getUserNetworkThrottler();
|
|
|
|
/// Network bandwidth limit, if needed.
|
|
ThrottlerPtr throttler;
|
|
if (settings.max_network_bandwidth || settings.max_network_bytes)
|
|
{
|
|
throttler = std::make_shared<Throttler>(
|
|
settings.max_network_bandwidth,
|
|
settings.max_network_bytes,
|
|
"Limit for bytes to send or receive over network exceeded.",
|
|
user_level_throttler);
|
|
}
|
|
else
|
|
throttler = user_level_throttler;
|
|
|
|
for (const auto & shard_info : cluster->getShardsInfo())
|
|
stream_factory.createForShard(shard_info, query, query_ast, new_context, throttler, query_info, res);
|
|
|
|
return res;
|
|
}
|
|
|
|
}
|
|
|
|
}
|