mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-04-18 21:44:02 +03:00
321 lines
8.8 KiB
C++
321 lines
8.8 KiB
C++
/* c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil
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* vi: set shiftwidth=4 tabstop=4 expandtab:
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* :indentSize=4:tabSize=4:noTabs=true:
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*
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* Copyright (C) 2016 MariaDB Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#define PREFER_MY_CONFIG_H
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#include "idb_mysql.h"
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#include "dbrm.h"
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#include "objectidmanager.h"
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#include "we_convertor.h"
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#include "we_define.h"
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#include "IDBPolicy.h"
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#include "configcpp.h"
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#include "we_config.h"
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#include "we_brm.h"
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#include "bytestream.h"
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#include "liboamcpp.h"
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#include "messagequeue.h"
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#include "messagequeuepool.h"
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#include "we_messages.h"
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#include "is_columnstore.h"
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#include "ha_mcs_logging.h"
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// Required declaration as it isn't in a MairaDB include
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bool schema_table_store_record(THD* thd, TABLE* table);
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ST_FIELD_INFO is_columnstore_files_fields[] = {
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Show::Column("OBJECT_ID", Show::ULong(0), NOT_NULL),
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Show::Column("SEGMENT_ID", Show::ULong(0), NOT_NULL),
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Show::Column("PARTITION_ID", Show::ULong(0), NOT_NULL),
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Show::Column("FILENAME", Show::Varchar(1024), NOT_NULL),
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Show::Column("FILE_SIZE", Show::ULonglong(0), NULLABLE),
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Show::Column("COMPRESSED_DATA_SIZE", Show::ULonglong(0), NULLABLE),
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Show::CEnd()};
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static bool get_file_sizes(THD* thd, messageqcpp::MessageQueueClient* msgQueueClient, const char* fileName,
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off_t* fileSize, off_t* compressedFileSize)
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{
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messageqcpp::ByteStream bs;
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messageqcpp::ByteStream::byte rc;
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std::string errMsg;
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try
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{
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bs << (messageqcpp::ByteStream::byte)WriteEngine::WE_SVR_GET_FILESIZE;
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// header??
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bs << fileName;
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msgQueueClient->write(bs);
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// namespace??
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messageqcpp::SBS sbs;
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sbs = msgQueueClient->read();
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if (sbs->length() == 0)
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{
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delete msgQueueClient;
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return false;
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}
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*sbs >> rc;
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*sbs >> errMsg;
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if (rc)
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{
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ha_mcs_impl::log_this(thd,
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"I_S::COLUMNSTORE_FILE::get_file_sizes(): WriteEngineServer returns an error().",
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logging::LOG_TYPE_ERROR, thd->thread_id);
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return false;
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}
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*sbs >> *fileSize;
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*sbs >> *compressedFileSize;
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return true;
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}
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catch (...)
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{
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return false;
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}
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}
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static int generate_result(BRM::OID_t oid, BRM::DBRM* emp, TABLE* table, THD* thd)
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{
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std::vector<struct BRM::EMEntry> entries;
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CHARSET_INFO* cs = system_charset_info;
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char oidDirName[WriteEngine::FILE_NAME_SIZE];
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char fullFileName[WriteEngine::FILE_NAME_SIZE];
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char dbDir[WriteEngine::MAX_DB_DIR_LEVEL][WriteEngine::MAX_DB_DIR_NAME_SIZE];
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config::Config* config;
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try
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{
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config = config::Config::makeConfig();
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}
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catch (std::runtime_error& e)
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{
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thd->raise_error_printf(ER_INTERNAL_ERROR, e.what());
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return ER_INTERNAL_ERROR;
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}
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WriteEngine::Config we_config;
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off_t fileSize = 0;
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off_t compressedFileSize = 0;
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we_config.initConfigCache();
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messageqcpp::MessageQueueClient* msgQueueClient;
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oam::Oam oam_instance;
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int pmId = 0;
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int rc;
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emp->getExtents(oid, entries, false, false, true);
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if (entries.size() == 0)
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return 0;
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std::vector<struct BRM::EMEntry>::const_iterator iter = entries.begin();
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while (iter != entries.end()) // organize extents into files
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{
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// Don't include files more than once at different block offsets
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if (iter->blockOffset > 0)
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{
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iter++;
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continue;
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}
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try
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{
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oam_instance.getDbrootPmConfig(iter->dbRoot, pmId);
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}
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catch (std::runtime_error&)
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{
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// MCOL-1116: If we are here a DBRoot is offline/missing
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iter++;
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return 0;
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}
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table->field[0]->store(oid);
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table->field[1]->store(iter->segmentNum);
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table->field[2]->store(iter->partitionNum);
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WriteEngine::Convertor::oid2FileName(oid, oidDirName, dbDir, iter->partitionNum, iter->segmentNum);
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std::stringstream DbRootName;
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DbRootName << "DBRoot" << iter->dbRoot;
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std::string DbRootPath = config->getConfig("SystemConfig", DbRootName.str());
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fileSize = compressedFileSize = 0;
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rc = snprintf(fullFileName, WriteEngine::FILE_NAME_SIZE, "%s/%s", DbRootPath.c_str(), oidDirName);
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std::ostringstream oss;
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oss << "pm" << pmId << "_WriteEngineServer";
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std::string client = oss.str();
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msgQueueClient = messageqcpp::MessageQueueClientPool::getInstance(oss.str());
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// snprintf output truncation check
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if (rc == WriteEngine::FILE_NAME_SIZE ||
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!get_file_sizes(thd, msgQueueClient, fullFileName, &fileSize, &compressedFileSize))
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{
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messageqcpp::MessageQueueClientPool::releaseInstance(msgQueueClient);
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delete emp;
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return 1;
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}
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table->field[3]->store(fullFileName, strlen(fullFileName), cs);
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if (fileSize > 0)
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{
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table->field[4]->set_notnull();
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table->field[4]->store(fileSize);
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if (compressedFileSize > 0)
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{
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table->field[5]->set_notnull();
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table->field[5]->store(compressedFileSize);
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}
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else
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{
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table->field[5]->set_null();
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}
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}
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else
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{
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table->field[4]->set_null();
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table->field[5]->set_null();
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}
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if (schema_table_store_record(thd, table))
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{
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messageqcpp::MessageQueueClientPool::releaseInstance(msgQueueClient);
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delete emp;
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return 1;
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}
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iter++;
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messageqcpp::MessageQueueClientPool::releaseInstance(msgQueueClient);
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msgQueueClient = NULL;
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}
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return 0;
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}
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static int is_columnstore_files_fill(THD* thd, TABLE_LIST* tables, COND* cond)
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{
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BRM::DBRM::refreshShmWithLock();
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BRM::DBRM* emp = new BRM::DBRM();
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BRM::OID_t cond_oid = 0;
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TABLE* table = tables->table;
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if (!emp || !emp->isDBRMReady())
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{
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return 1;
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}
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if (cond && cond->type() == Item::FUNC_ITEM)
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{
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Item_func* fitem = (Item_func*)cond;
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if ((fitem->functype() == Item_func::EQ_FUNC) && (fitem->argument_count() == 2))
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{
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if (fitem->arguments()[0]->real_item()->type() == Item::FIELD_ITEM &&
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fitem->arguments()[1]->const_item())
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{
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// WHERE object_id = value
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Item_field* item_field = (Item_field*)fitem->arguments()[0]->real_item();
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if (strcasecmp(item_field->field_name.str, "object_id") == 0)
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{
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cond_oid = fitem->arguments()[1]->val_int();
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return generate_result(cond_oid, emp, table, thd);
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}
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}
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else if (fitem->arguments()[1]->real_item()->type() == Item::FIELD_ITEM &&
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fitem->arguments()[0]->const_item())
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{
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// WHERE value = object_id
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Item_field* item_field = (Item_field*)fitem->arguments()[1]->real_item();
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if (strcasecmp(item_field->field_name.str, "object_id") == 0)
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{
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cond_oid = fitem->arguments()[0]->val_int();
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return generate_result(cond_oid, emp, table, thd);
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}
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}
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}
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else if (fitem->functype() == Item_func::IN_FUNC)
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{
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// WHERE object_id in (value1, value2)
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Item_field* item_field = (Item_field*)fitem->arguments()[0]->real_item();
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if (strcasecmp(item_field->field_name.str, "object_id") == 0)
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{
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for (unsigned int i = 1; i < fitem->argument_count(); i++)
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{
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cond_oid = fitem->arguments()[i]->val_int();
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int result = generate_result(cond_oid, emp, table, thd);
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if (result)
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return 1;
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}
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}
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}
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else if (fitem->functype() == Item_func::UNKNOWN_FUNC &&
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strcasecmp(fitem->func_name(), "find_in_set") == 0)
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{
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// WHERE FIND_IN_SET(object_id, values)
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String* tmp_var = fitem->arguments()[1]->val_str();
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std::stringstream ss(tmp_var->ptr());
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while (ss >> cond_oid)
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{
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int ret = generate_result(cond_oid, emp, table, thd);
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if (ret)
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return 1;
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if (ss.peek() == ',')
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ss.ignore();
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}
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}
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}
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execplan::ObjectIDManager oidm;
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BRM::OID_t MaxOID = oidm.size();
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if (!cond_oid)
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{
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for (BRM::OID_t oid = 3000; oid <= MaxOID; oid++)
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{
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int result = generate_result(oid, emp, table, thd);
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if (result)
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return 1;
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}
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}
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delete emp;
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return 0;
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}
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int is_columnstore_files_plugin_init(void* p)
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{
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ST_SCHEMA_TABLE* schema = (ST_SCHEMA_TABLE*)p;
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schema->fields_info = is_columnstore_files_fields;
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schema->fill_table = is_columnstore_files_fill;
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return 0;
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}
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