ClickHouse/dbms/src/Storages/System/StorageSystemProcesses.cpp

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#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeFactory.h>
#include <Interpreters/ProcessList.h>
#include <Storages/System/StorageSystemProcesses.h>
#include <Interpreters/Context.h>
#include <Core/Settings.h>
#include <Interpreters/ProfileEventsExt.h>
#include <Common/typeid_cast.h>
#include <Common/IPv6ToBinary.h>
#include <Columns/ColumnsNumber.h>
#include <Columns/ColumnArray.h>
namespace DB
{
NamesAndTypesList StorageSystemProcesses::getNamesAndTypes()
{
return {
{"is_initial_query", std::make_shared<DataTypeUInt8>()},
{"user", std::make_shared<DataTypeString>()},
{"query_id", std::make_shared<DataTypeString>()},
{"address", DataTypeFactory::instance().get("IPv6")},
{"port", std::make_shared<DataTypeUInt16>()},
{"initial_user", std::make_shared<DataTypeString>()},
{"initial_query_id", std::make_shared<DataTypeString>()},
{"initial_address", DataTypeFactory::instance().get("IPv6")},
{"initial_port", std::make_shared<DataTypeUInt16>()},
{"interface", std::make_shared<DataTypeUInt8>()},
{"os_user", std::make_shared<DataTypeString>()},
{"client_hostname", std::make_shared<DataTypeString>()},
{"client_name", std::make_shared<DataTypeString>()},
{"client_revision", std::make_shared<DataTypeUInt64>()},
{"client_version_major", std::make_shared<DataTypeUInt64>()},
{"client_version_minor", std::make_shared<DataTypeUInt64>()},
{"client_version_patch", std::make_shared<DataTypeUInt64>()},
{"http_method", std::make_shared<DataTypeUInt8>()},
{"http_user_agent", std::make_shared<DataTypeString>()},
{"quota_key", std::make_shared<DataTypeString>()},
{"elapsed", std::make_shared<DataTypeFloat64>()},
{"is_cancelled", std::make_shared<DataTypeUInt8>()},
{"read_rows", std::make_shared<DataTypeUInt64>()},
{"read_bytes", std::make_shared<DataTypeUInt64>()},
{"total_rows_approx", std::make_shared<DataTypeUInt64>()},
{"written_rows", std::make_shared<DataTypeUInt64>()},
{"written_bytes", std::make_shared<DataTypeUInt64>()},
{"memory_usage", std::make_shared<DataTypeInt64>()},
{"peak_memory_usage", std::make_shared<DataTypeInt64>()},
{"query", std::make_shared<DataTypeString>()},
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{"thread_ids", std::make_shared<DataTypeArray>(std::make_shared<DataTypeUInt32>())},
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{"ProfileEvents.Names", std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())},
{"ProfileEvents.Values", std::make_shared<DataTypeArray>(std::make_shared<DataTypeUInt64>())},
{"Settings.Names", std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())},
{"Settings.Values", std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())},
};
}
void StorageSystemProcesses::fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo &) const
{
ProcessList::Info info = context.getProcessList().getInfo(true, true, true);
for (const auto & process : info)
{
size_t i = 0;
res_columns[i++]->insert(process.client_info.query_kind == ClientInfo::QueryKind::INITIAL_QUERY);
res_columns[i++]->insert(process.client_info.current_user);
res_columns[i++]->insert(process.client_info.current_query_id);
res_columns[i++]->insertData(IPv6ToBinary(process.client_info.current_address.host()).data(), 16);
res_columns[i++]->insert(process.client_info.current_address.port());
res_columns[i++]->insert(process.client_info.initial_user);
res_columns[i++]->insert(process.client_info.initial_query_id);
res_columns[i++]->insertData(IPv6ToBinary(process.client_info.initial_address.host()).data(), 16);
res_columns[i++]->insert(process.client_info.initial_address.port());
res_columns[i++]->insert(UInt64(process.client_info.interface));
res_columns[i++]->insert(process.client_info.os_user);
res_columns[i++]->insert(process.client_info.client_hostname);
res_columns[i++]->insert(process.client_info.client_name);
res_columns[i++]->insert(process.client_info.client_revision);
res_columns[i++]->insert(process.client_info.client_version_major);
res_columns[i++]->insert(process.client_info.client_version_minor);
res_columns[i++]->insert(process.client_info.client_version_patch);
res_columns[i++]->insert(UInt64(process.client_info.http_method));
res_columns[i++]->insert(process.client_info.http_user_agent);
res_columns[i++]->insert(process.client_info.quota_key);
res_columns[i++]->insert(process.elapsed_seconds);
res_columns[i++]->insert(process.is_cancelled);
res_columns[i++]->insert(process.read_rows);
res_columns[i++]->insert(process.read_bytes);
res_columns[i++]->insert(process.total_rows);
res_columns[i++]->insert(process.written_rows);
res_columns[i++]->insert(process.written_bytes);
res_columns[i++]->insert(process.memory_usage);
res_columns[i++]->insert(process.peak_memory_usage);
res_columns[i++]->insert(process.query);
{
Array threads_array;
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threads_array.reserve(process.thread_ids.size());
for (const UInt32 thread_id : process.thread_ids)
threads_array.emplace_back(thread_id);
res_columns[i++]->insert(threads_array);
}
{
IColumn * column_profile_events_names = res_columns[i++].get();
IColumn * column_profile_events_values = res_columns[i++].get();
if (process.profile_counters)
ProfileEvents::dumpToArrayColumns(*process.profile_counters, column_profile_events_names, column_profile_events_values, true);
else
{
column_profile_events_names->insertDefault();
column_profile_events_values->insertDefault();
}
}
{
IColumn * column_settings_names = res_columns[i++].get();
IColumn * column_settings_values = res_columns[i++].get();
if (process.query_settings)
process.query_settings->dumpToArrayColumns(column_settings_names, column_settings_values, true);
else
{
column_settings_names->insertDefault();
column_settings_values->insertDefault();
}
}
}
}
}