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#include <Columns/ColumnString.h>
#include <Columns/ColumnsNumber.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <Storages/System/StorageSystemDistributionQueue.h>
#include <Storages/SelectQueryInfo.h>
#include <Storages/StorageDistributed.h>
#include <Storages/VirtualColumnUtils.h>
#include <Access/ContextAccess.h>
#include <Common/typeid_cast.h>
#include <Interpreters/Context.h>
#include <Databases/IDatabase.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
}
namespace
{
using namespace DB;
/// Drop "password" from the path.
///
/// In case of use_compact_format_in_distributed_parts_names=0 the path format is:
///
/// user[:password]@host:port#default_database format
///
/// And password should be masked out.
///
/// See:
/// - Cluster::Address::fromFullString()
/// - Cluster::Address::toFullString()
std::string maskDataPath(const std::string & path)
{
std::string masked_path = path;
if (!masked_path.ends_with('/'))
throw Exception(ErrorCodes::LOGICAL_ERROR, "Invalid path format");
masked_path.pop_back();
size_t node_pos = masked_path.rfind('/');
/// Loop through each node, that separated with a comma
while (node_pos != std::string::npos)
{
++node_pos;
size_t user_pw_end = masked_path.find('@', node_pos);
if (user_pw_end == std::string::npos)
{
/// Likely new format (use_compact_format_in_distributed_parts_names=1)
return path;
}
size_t pw_start = masked_path.find(':', node_pos);
if (pw_start > user_pw_end)
{
/// No password in path
return path;
}
++pw_start;
size_t pw_length = user_pw_end - pw_start;
/// Replace with a single '*' to hide even the password length.
masked_path.replace(pw_start, pw_length, 1, '*');
/// "," cannot be in the node specification since it will be encoded in hex.
node_pos = masked_path.find(',', node_pos);
}
masked_path.push_back('/');
return masked_path;
}
}
namespace DB
{
NamesAndTypesList StorageSystemDistributionQueue::getNamesAndTypes()
{
return {
{ "database", std::make_shared<DataTypeString>() },
{ "table", std::make_shared<DataTypeString>() },
{ "data_path", std::make_shared<DataTypeString>() },
{ "is_blocked", std::make_shared<DataTypeUInt8>() },
{ "error_count", std::make_shared<DataTypeUInt64>() },
{ "data_files", std::make_shared<DataTypeUInt64>() },
{ "data_compressed_bytes", std::make_shared<DataTypeUInt64>() },
{ "broken_data_files", std::make_shared<DataTypeUInt64>() },
{ "broken_data_compressed_bytes", std::make_shared<DataTypeUInt64>() },
{ "last_exception", std::make_shared<DataTypeString>() },
{ "last_exception_time", std::make_shared<DataTypeDateTime>() },
};
}
void StorageSystemDistributionQueue::fillData(MutableColumns & res_columns, ContextPtr context, const SelectQueryInfo & query_info) const
{
const auto access = context->getAccess();
const bool check_access_for_databases = !access->isGranted(AccessType::SHOW_TABLES);
std::map<String, std::map<String, StoragePtr>> tables;
for (const auto & db : DatabaseCatalog::instance().getDatabases())
{
/// Check if database can contain distributed tables
if (!db.second->canContainDistributedTables())
continue;
const bool check_access_for_tables = check_access_for_databases && !access->isGranted(AccessType::SHOW_TABLES, db.first);
for (auto iterator = db.second->getTablesIterator(context); iterator->isValid(); iterator->next())
{
StoragePtr table = iterator->table();
if (!table)
continue;
if (!dynamic_cast<const StorageDistributed *>(table.get()))
continue;
if (check_access_for_tables && !access->isGranted(AccessType::SHOW_TABLES, db.first, iterator->name()))
continue;
tables[db.first][iterator->name()] = table;
}
}
MutableColumnPtr col_database_mut = ColumnString::create();
MutableColumnPtr col_table_mut = ColumnString::create();
for (auto & db : tables)
{
for (auto & table : db.second)
{
col_database_mut->insert(db.first);
col_table_mut->insert(table.first);
}
}
ColumnPtr col_database_to_filter = std::move(col_database_mut);
ColumnPtr col_table_to_filter = std::move(col_table_mut);
/// Determine what tables are needed by the conditions in the query.
{
Block filtered_block
{
{ col_database_to_filter, std::make_shared<DataTypeString>(), "database" },
{ col_table_to_filter, std::make_shared<DataTypeString>(), "table" },
};
VirtualColumnUtils::filterBlockWithQuery(query_info.query, filtered_block, context);
if (!filtered_block.rows())
return;
col_database_to_filter = filtered_block.getByName("database").column;
col_table_to_filter = filtered_block.getByName("table").column;
}
for (size_t i = 0, tables_size = col_database_to_filter->size(); i < tables_size; ++i)
{
String database = (*col_database_to_filter)[i].safeGet<const String &>();
String table = (*col_table_to_filter)[i].safeGet<const String &>();
auto & distributed_table = dynamic_cast<StorageDistributed &>(*tables[database][table]);
for (const auto & status : distributed_table.getDirectoryQueueStatuses())
{
size_t col_num = 0;
res_columns[col_num++]->insert(database);
res_columns[col_num++]->insert(table);
res_columns[col_num++]->insert(maskDataPath(status.path));
res_columns[col_num++]->insert(status.is_blocked);
res_columns[col_num++]->insert(status.error_count);
res_columns[col_num++]->insert(status.files_count);
res_columns[col_num++]->insert(status.bytes_count);
res_columns[col_num++]->insert(status.broken_files_count);
res_columns[col_num++]->insert(status.broken_bytes_count);
if (status.last_exception)
res_columns[col_num++]->insert(getExceptionMessage(status.last_exception, false));
else
res_columns[col_num++]->insertDefault();
res_columns[col_num++]->insert(static_cast<UInt32>(std::chrono::system_clock::to_time_t(status.last_exception_time)));
}
}
}
}
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