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330 lines
12 KiB
330 lines
12 KiB
2 years ago
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<?php
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/**
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* The InnoDB storage engine
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*/
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declare(strict_types=1);
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namespace PhpMyAdmin\Engines;
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use PhpMyAdmin\StorageEngine;
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use PhpMyAdmin\Util;
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use function __;
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use function htmlspecialchars;
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use function implode;
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/**
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* The InnoDB storage engine
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*/
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class Innodb extends StorageEngine
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{
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/**
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* Returns array with variable names related to InnoDB storage engine
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*
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* @return array variable names
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*/
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public function getVariables()
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{
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return [
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'innodb_data_home_dir' => [
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'title' => __('Data home directory'),
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'desc' => __('The common part of the directory path for all InnoDB data files.'),
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],
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'innodb_data_file_path' => [
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'title' => __('Data files'),
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],
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'innodb_autoextend_increment' => [
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'title' => __('Autoextend increment'),
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'desc' => __(
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'The increment size for extending the size of an autoextending tablespace when it becomes full.'
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),
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'type' => StorageEngine::DETAILS_TYPE_NUMERIC,
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],
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'innodb_buffer_pool_size' => [
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'title' => __('Buffer pool size'),
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'desc' => __('The size of the memory buffer InnoDB uses to cache data and indexes of its tables.'),
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'type' => StorageEngine::DETAILS_TYPE_SIZE,
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],
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'innodb_additional_mem_pool_size' => [
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'title' => 'innodb_additional_mem_pool_size',
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'type' => StorageEngine::DETAILS_TYPE_SIZE,
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],
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'innodb_buffer_pool_awe_mem_mb' => ['type' => StorageEngine::DETAILS_TYPE_SIZE],
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'innodb_checksums' => [],
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'innodb_commit_concurrency' => [],
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'innodb_concurrency_tickets' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_doublewrite' => [],
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'innodb_fast_shutdown' => [],
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'innodb_file_io_threads' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_file_per_table' => [],
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'innodb_flush_log_at_trx_commit' => [],
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'innodb_flush_method' => [],
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'innodb_force_recovery' => [],
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'innodb_lock_wait_timeout' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_locks_unsafe_for_binlog' => [],
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'innodb_log_arch_dir' => [],
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'innodb_log_archive' => [],
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'innodb_log_buffer_size' => ['type' => StorageEngine::DETAILS_TYPE_SIZE],
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'innodb_log_file_size' => ['type' => StorageEngine::DETAILS_TYPE_SIZE],
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'innodb_log_files_in_group' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_log_group_home_dir' => [],
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'innodb_max_dirty_pages_pct' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_max_purge_lag' => [],
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'innodb_mirrored_log_groups' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_open_files' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_support_xa' => [],
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'innodb_sync_spin_loops' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_table_locks' => ['type' => StorageEngine::DETAILS_TYPE_BOOLEAN],
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'innodb_thread_concurrency' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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'innodb_thread_sleep_delay' => ['type' => StorageEngine::DETAILS_TYPE_NUMERIC],
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];
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}
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/**
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* Returns the pattern to be used in the query for SQL variables
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* related to InnoDb storage engine
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*
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* @return string SQL query LIKE pattern
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*/
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public function getVariablesLikePattern()
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{
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return 'innodb\\_%';
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}
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/**
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* Get information pages
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*
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* @return array detail pages
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*/
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public function getInfoPages()
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{
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if ($this->support < StorageEngine::SUPPORT_YES) {
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return [];
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}
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$pages = [];
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$pages['Bufferpool'] = __('Buffer Pool');
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$pages['Status'] = __('InnoDB Status');
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return $pages;
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}
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/**
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* returns html tables with stats over inno db buffer pool
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*
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* @return string html table with stats
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*/
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public function getPageBufferpool()
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{
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global $dbi;
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// The following query is only possible because we know
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// that we are on MySQL 5 here (checked above)!
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// side note: I love MySQL 5 for this. :-)
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$sql = 'SHOW STATUS'
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. ' WHERE Variable_name LIKE \'Innodb\\_buffer\\_pool\\_%\''
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. ' OR Variable_name = \'Innodb_page_size\';';
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$status = $dbi->fetchResult($sql, 0, 1);
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/** @var string[] $bytes */
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$bytes = Util::formatByteDown($status['Innodb_buffer_pool_pages_total'] * $status['Innodb_page_size']);
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$output = '<table class="table table-light table-striped table-hover w-auto float-start caption-top">' . "\n"
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. ' <caption>' . "\n"
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. ' ' . __('Buffer Pool Usage') . "\n"
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. ' </caption>' . "\n"
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. ' <tfoot class="table-light">' . "\n"
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. ' <tr>' . "\n"
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. ' <th colspan="2">' . "\n"
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. ' ' . __('Total:') . ' '
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. Util::formatNumber($status['Innodb_buffer_pool_pages_total'], 0)
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. ' ' . __('pages')
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. ' / '
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. implode(' ', $bytes) . "\n"
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. ' </th>' . "\n"
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. ' </tr>' . "\n"
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. ' </tfoot>' . "\n"
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. ' <tbody>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Free pages') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_pages_free'], 0)
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Dirty pages') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_pages_dirty'], 0)
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Pages containing data') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_pages_data'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Pages to be flushed') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_pages_flushed'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Busy pages') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_pages_misc'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>';
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// not present at least since MySQL 5.1.40
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if (isset($status['Innodb_buffer_pool_pages_latched'])) {
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$output .= ' <tr>'
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. ' <th scope="row">' . __('Latched pages') . '</th>'
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_pages_latched'], 0)
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. '</td>'
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. ' </tr>';
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}
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$output .= ' </tbody>' . "\n"
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. '</table>' . "\n\n"
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. '<table class="table table-light table-striped table-hover w-auto ms-4 float-start caption-top">' . "\n"
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. ' <caption>' . "\n"
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. ' ' . __('Buffer Pool Activity') . "\n"
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. ' </caption>' . "\n"
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. ' <tbody>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Read requests') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_read_requests'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Write requests') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_write_requests'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Read misses') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_reads'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Write waits') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. Util::formatNumber($status['Innodb_buffer_pool_wait_free'], 0) . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Read misses in %') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. ($status['Innodb_buffer_pool_read_requests'] == 0
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? '---'
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: htmlspecialchars(
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Util::formatNumber(
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$status['Innodb_buffer_pool_reads'] * 100
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/ $status['Innodb_buffer_pool_read_requests'],
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3,
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2
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)
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) . ' %') . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' <tr>' . "\n"
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. ' <th scope="row">' . __('Write waits in %') . '</th>' . "\n"
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. ' <td class="font-monospace text-end">'
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. ($status['Innodb_buffer_pool_write_requests'] == 0
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? '---'
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: htmlspecialchars(
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Util::formatNumber(
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$status['Innodb_buffer_pool_wait_free'] * 100
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/ $status['Innodb_buffer_pool_write_requests'],
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3,
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2
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)
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) . ' %') . "\n"
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. '</td>' . "\n"
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. ' </tr>' . "\n"
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. ' </tbody>' . "\n"
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. '</table>' . "\n";
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return $output;
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}
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/**
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* returns InnoDB status
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*
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* @return string result of SHOW ENGINE INNODB STATUS inside pre tags
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*/
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public function getPageStatus()
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{
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global $dbi;
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return '<pre id="pre_innodb_status">' . "\n"
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. htmlspecialchars((string) $dbi->fetchValue(
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'SHOW ENGINE INNODB STATUS;',
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'Status'
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)) . "\n" . '</pre>' . "\n";
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}
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/**
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* returns string with filename for the MySQL helppage
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* about this storage engine
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*
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* @return string mysql helppage filename
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*/
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public function getMysqlHelpPage()
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{
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return 'innodb-storage-engine';
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}
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/**
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* Gets the InnoDB plugin version number
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*
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* @return string the version number, or empty if not running as a plugin
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*/
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public function getInnodbPluginVersion()
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{
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global $dbi;
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return $dbi->fetchValue('SELECT @@innodb_version;') ?: '';
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}
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/**
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* Gets the InnoDB file format
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*
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* (do not confuse this with phpMyAdmin's storage engine plugins!)
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*
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* @return string|null the InnoDB file format
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*/
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public function getInnodbFileFormat(): ?string
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{
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global $dbi;
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$value = $dbi->fetchValue("SHOW GLOBAL VARIABLES LIKE 'innodb_file_format';", 1);
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if ($value === false) {
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// This variable does not exist anymore on MariaDB >= 10.6.0
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// This variable does not exist anymore on MySQL >= 8.0.0
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return null;
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}
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return (string) $value;
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}
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/**
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* Verifies if this server supports the innodb_file_per_table feature
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*
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* (do not confuse this with phpMyAdmin's storage engine plugins!)
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*/
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public function supportsFilePerTable(): bool
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{
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global $dbi;
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return $dbi->fetchValue("SHOW GLOBAL VARIABLES LIKE 'innodb_file_per_table';", 1) === 'ON';
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}
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}
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