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https://github.com/isar/libmdbx.git
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322 lines
12 KiB
C++
322 lines
12 KiB
C++
/*
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* Copyright 2017-2019 Leonid Yuriev <leo@yuriev.ru>
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* and other libmdbx authors: please see AUTHORS file.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "test.h"
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bool testcase_hill::run() {
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MDBX_dbi dbi;
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int err = db_open__begin__table_create_open_clean(dbi);
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("hill: bailout-prepare due '%s'", mdbx_strerror(err));
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return true;
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}
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/* LY: тест "холмиком":
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* - сначала наполняем таблицу циклическими CRUD-манипуляциями,
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* которые в каждом цикле делают несколько операций, включая удаление,
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* но в результате добавляют записи.
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* - затем очищаем таблицу также CRUD-манипуляциями, но уже с другой
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* пропорцией удалений.
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*
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* При этом очень многое зависит от порядка перебора ключей:
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* - (псевдо)случайное распределение требуется лишь для полноты картины,
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* но в целом не покрывает важных кейсов.
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* - кроме (псевдо)случайного перебора требуется последовательное
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* итерирование ключей интервалами различной ширины, с тем чтобы
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* проверить различные варианты как разделения, так и слияния страниц
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* внутри движка.
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* - при не-уникальных ключах (MDBX_DUPSORT с подвариантами), для каждого
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* повтора внутри движка формируется вложенное btree-дерево,
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* соответственно требуется соблюдение аналогичных принципов
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* итерирования для значений.
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*/
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/* TODO: работа в несколько потоков */
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keyvalue_maker.setup(config.params, config.actor_id, 0 /* thread_number */);
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keygen::buffer a_key = keygen::alloc(config.params.keylen_max);
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keygen::buffer a_data_0 = keygen::alloc(config.params.datalen_max);
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keygen::buffer a_data_1 = keygen::alloc(config.params.datalen_max);
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keygen::buffer b_key = keygen::alloc(config.params.keylen_max);
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keygen::buffer b_data = keygen::alloc(config.params.datalen_max);
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const unsigned insert_flags = (config.params.table_flags & MDBX_DUPSORT)
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? MDBX_NODUPDATA
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: MDBX_NODUPDATA | MDBX_NOOVERWRITE;
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const unsigned update_flags =
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(config.params.table_flags & MDBX_DUPSORT)
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? MDBX_CURRENT | MDBX_NODUPDATA | MDBX_NOOVERWRITE
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: MDBX_NODUPDATA;
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uint64_t serial_count = 0;
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uint64_t commited_serial = serial_count;
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unsigned txn_nops = 0;
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while (should_continue()) {
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const keygen::serial_t a_serial = serial_count;
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if (unlikely(!keyvalue_maker.increment(serial_count, 1))) {
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log_notice("uphill: unexpected key-space overflow");
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break;
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}
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const keygen::serial_t b_serial = serial_count;
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assert(b_serial > a_serial);
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// создаем первую запись из пары
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const keygen::serial_t age_shift = UINT64_C(1) << (a_serial % 31);
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log_trace("uphill: insert-a (age %" PRIu64 ") %" PRIu64, age_shift,
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a_serial);
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generate_pair(a_serial, a_key, a_data_1, age_shift);
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err = mdbx_put(txn_guard.get(), dbi, &a_key->value, &a_data_1->value,
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insert_flags);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("uphill: bailout at insert-a due '%s'", mdbx_strerror(err));
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txn_restart(true, false);
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serial_count = commited_serial;
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break;
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}
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failure_perror("mdbx_put(insert-a.1)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("uphill: bailout at commit due '%s'", mdbx_strerror(err));
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serial_count = commited_serial;
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break;
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}
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commited_serial = a_serial;
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txn_nops = 0;
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}
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// создаем вторую запись из пары
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log_trace("uphill: insert-b %" PRIu64, b_serial);
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generate_pair(b_serial, b_key, b_data, 0);
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err = mdbx_put(txn_guard.get(), dbi, &b_key->value, &b_data->value,
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insert_flags);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("uphill: bailout at insert-b due '%s'", mdbx_strerror(err));
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txn_restart(true, false);
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serial_count = commited_serial;
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break;
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}
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failure_perror("mdbx_put(insert-b)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("uphill: bailout at commit due '%s'", mdbx_strerror(err));
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serial_count = commited_serial;
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break;
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}
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commited_serial = a_serial;
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txn_nops = 0;
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}
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// обновляем данные в первой записи
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log_trace("uphill: update-a (age %" PRIu64 "->0) %" PRIu64, age_shift,
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a_serial);
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generate_pair(a_serial, a_key, a_data_0, 0);
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checkdata("uphill: update-a", dbi, a_key->value, a_data_1->value);
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err = mdbx_replace(txn_guard.get(), dbi, &a_key->value, &a_data_0->value,
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&a_data_1->value, update_flags);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("uphill: bailout at update-a due '%s'", mdbx_strerror(err));
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txn_restart(true, false);
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serial_count = commited_serial;
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break;
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}
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failure_perror("mdbx_replace(update-a: 1->0)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("uphill: bailout at commit due '%s'", mdbx_strerror(err));
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serial_count = commited_serial;
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break;
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}
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commited_serial = a_serial;
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txn_nops = 0;
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}
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// удаляем вторую запись
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log_trace("uphill: delete-b %" PRIu64, b_serial);
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checkdata("uphill: delete-b", dbi, b_key->value, b_data->value);
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err = mdbx_del(txn_guard.get(), dbi, &b_key->value, &b_data->value);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("uphill: bailout at delete-b due '%s'", mdbx_strerror(err));
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txn_restart(true, false);
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serial_count = commited_serial;
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break;
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}
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failure_perror("mdbx_del(b)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("uphill: bailout at commit due '%s'", mdbx_strerror(err));
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serial_count = commited_serial;
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break;
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}
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commited_serial = a_serial;
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txn_nops = 0;
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}
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report(1);
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if (!keyvalue_maker.increment(serial_count, 1)) {
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// дошли до границы пространства ключей
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serial_count = a_serial;
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goto overflow;
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}
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}
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while (serial_count > 1) {
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if (unlikely(!keyvalue_maker.increment(serial_count, -2)))
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failure("downhill: unexpected key-space underflow");
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overflow:
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const keygen::serial_t a_serial = serial_count;
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const keygen::serial_t b_serial = a_serial + 1;
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assert(b_serial > a_serial);
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// обновляем первую запись из пары
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const keygen::serial_t age_shift = UINT64_C(1) << (a_serial % 31);
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log_trace("downhill: update-a (age 0->%" PRIu64 ") %" PRIu64, age_shift,
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a_serial);
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generate_pair(a_serial, a_key, a_data_0, 0);
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generate_pair(a_serial, a_key, a_data_1, age_shift);
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checkdata("downhill: update-a", dbi, a_key->value, a_data_0->value);
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err = mdbx_replace(txn_guard.get(), dbi, &a_key->value, &a_data_1->value,
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&a_data_0->value, update_flags);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("downhill: bailout at update-a due '%s'",
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mdbx_strerror(err));
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txn_end(true);
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break;
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}
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failure_perror("mdbx_put(update-a: 0->1)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("downhill: bailout at commit due '%s'", mdbx_strerror(err));
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break;
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}
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txn_nops = 0;
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}
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// создаем вторую запись из пары
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log_trace("downhill: insert-b %" PRIu64, b_serial);
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generate_pair(b_serial, b_key, b_data, 0);
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err = mdbx_put(txn_guard.get(), dbi, &b_key->value, &b_data->value,
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insert_flags);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("downhill: bailout at insert-a due '%s'",
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mdbx_strerror(err));
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txn_end(true);
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break;
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}
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failure_perror("mdbx_put(insert-b)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("downhill: bailout at commit due '%s'", mdbx_strerror(err));
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break;
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}
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txn_nops = 0;
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}
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// удаляем первую запись
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log_trace("downhill: delete-a (age %" PRIu64 ") %" PRIu64, age_shift,
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a_serial);
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checkdata("downhill: delete-a", dbi, a_key->value, a_data_1->value);
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err = mdbx_del(txn_guard.get(), dbi, &a_key->value, &a_data_1->value);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("downhill: bailout at delete-a due '%s'",
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mdbx_strerror(err));
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txn_end(true);
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break;
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}
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failure_perror("mdbx_del(a)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("downhill: bailout at commit due '%s'", mdbx_strerror(err));
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break;
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}
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txn_nops = 0;
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}
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// удаляем вторую запись
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log_trace("downhill: delete-b %" PRIu64, b_serial);
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checkdata("downhill: delete-b", dbi, b_key->value, b_data->value);
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err = mdbx_del(txn_guard.get(), dbi, &b_key->value, &b_data->value);
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if (unlikely(err != MDBX_SUCCESS)) {
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if (err == MDBX_MAP_FULL && config.params.ignore_dbfull) {
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log_notice("downhill: bailout at delete-b due '%s'",
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mdbx_strerror(err));
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txn_end(true);
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break;
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}
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failure_perror("mdbx_del(b)", err);
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}
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if (++txn_nops >= config.params.batch_write) {
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err = breakable_restart();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("downhill: bailout at commit due '%s'", mdbx_strerror(err));
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break;
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}
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txn_nops = 0;
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}
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report(1);
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}
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if (txn_guard) {
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err = breakable_commit();
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if (unlikely(err != MDBX_SUCCESS))
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log_notice("downhill: bailout at commit due '%s'", mdbx_strerror(err));
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}
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if (dbi) {
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if (config.params.drop_table && !mode_readonly()) {
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txn_begin(false);
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db_table_drop(dbi);
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err = breakable_commit();
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if (unlikely(err != MDBX_SUCCESS)) {
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log_notice("hill: bailout-clean due '%s'", mdbx_strerror(err));
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return true;
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}
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} else
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db_table_close(dbi);
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}
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return true;
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}
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