From 04d6d5ca99ebfd1cebb8ce06618fb3811fc1a8aa Mon Sep 17 00:00:00 2001 From: Charles Date: Thu, 9 Jan 2020 10:55:03 +0100 Subject: phpmyadmin working --- .../Server/Status/VariablesController.php | 639 +++++++++++++++++++++ 1 file changed, 639 insertions(+) create mode 100644 srcs/phpmyadmin/libraries/classes/Controllers/Server/Status/VariablesController.php (limited to 'srcs/phpmyadmin/libraries/classes/Controllers/Server/Status/VariablesController.php') diff --git a/srcs/phpmyadmin/libraries/classes/Controllers/Server/Status/VariablesController.php b/srcs/phpmyadmin/libraries/classes/Controllers/Server/Status/VariablesController.php new file mode 100644 index 0000000..a17f15f --- /dev/null +++ b/srcs/phpmyadmin/libraries/classes/Controllers/Server/Status/VariablesController.php @@ -0,0 +1,639 @@ +flush($params['flush']); + } + + if ($this->data->dataLoaded) { + $categories = []; + foreach ($this->data->sections as $sectionId => $sectionName) { + if (isset($this->data->sectionUsed[$sectionId])) { + $categories[$sectionId] = [ + 'id' => $sectionId, + 'name' => $sectionName, + 'is_selected' => false, + ]; + if (! empty($params['filterCategory']) + && $params['filterCategory'] === $sectionId + ) { + $categories[$sectionId]['is_selected'] = true; + } + } + } + + $links = []; + foreach ($this->data->links as $sectionName => $sectionLinks) { + $links[$sectionName] = [ + 'name' => 'status_' . $sectionName, + 'links' => $sectionLinks, + ]; + } + + $descriptions = $this->getDescriptions(); + $alerts = $this->getAlerts(); + + $variables = []; + foreach ($this->data->status as $name => $value) { + $variables[$name] = [ + 'name' => $name, + 'value' => $value, + 'is_numeric' => is_numeric($value), + 'class' => $this->data->allocationMap[$name] ?? null, + 'doc' => '', + 'has_alert' => false, + 'is_alert' => false, + 'description' => $descriptions[$name] ?? '', + 'description_doc' => [], + ]; + + // Fields containing % are calculated, + // they can not be described in MySQL documentation + if (mb_strpos($name, '%') === false) { + $variables[$name]['doc'] = Util::linkToVarDocumentation( + $name, + $this->dbi->isMariaDB() + ); + } + + if (isset($alerts[$name])) { + $variables[$name]['has_alert'] = true; + if ($value > $alerts[$name]) { + $variables[$name]['is_alert'] = true; + } + } + + if (isset($this->data->links[$name])) { + foreach ($this->data->links[$name] as $linkName => $linkUrl) { + $variables[$name]['description_doc'][] = [ + 'name' => $linkName, + 'url' => $linkUrl, + ]; + } + } + } + } + + return $this->template->render('server/status/variables/index', [ + 'is_data_loaded' => $this->data->dataLoaded, + 'filter_text' => ! empty($params['filterText']) ? $params['filterText'] : '', + 'is_only_alerts' => ! empty($params['filterAlert']), + 'is_not_formatted' => ! empty($params['dontFormat']), + 'categories' => $categories ?? [], + 'links' => $links ?? [], + 'variables' => $variables ?? [], + ]); + } + + /** + * Flush status variables if requested + * + * @param string $flush Variable name + * @return void + */ + private function flush(string $flush): void + { + $flushCommands = [ + 'STATUS', + 'TABLES', + 'QUERY CACHE', + ]; + + if (in_array($flush, $flushCommands)) { + $this->dbi->query('FLUSH ' . $flush . ';'); + } + } + + /** + * @return array + */ + private function getAlerts(): array + { + // name => max value before alert + return [ + // lower is better + // variable => max value + 'Aborted_clients' => 0, + 'Aborted_connects' => 0, + + 'Binlog_cache_disk_use' => 0, + + 'Created_tmp_disk_tables' => 0, + + 'Handler_read_rnd' => 0, + 'Handler_read_rnd_next' => 0, + + 'Innodb_buffer_pool_pages_dirty' => 0, + 'Innodb_buffer_pool_reads' => 0, + 'Innodb_buffer_pool_wait_free' => 0, + 'Innodb_log_waits' => 0, + 'Innodb_row_lock_time_avg' => 10, // ms + 'Innodb_row_lock_time_max' => 50, // ms + 'Innodb_row_lock_waits' => 0, + + 'Slow_queries' => 0, + 'Delayed_errors' => 0, + 'Select_full_join' => 0, + 'Select_range_check' => 0, + 'Sort_merge_passes' => 0, + 'Opened_tables' => 0, + 'Table_locks_waited' => 0, + 'Qcache_lowmem_prunes' => 0, + + 'Qcache_free_blocks' => + isset($this->data->status['Qcache_total_blocks']) + ? $this->data->status['Qcache_total_blocks'] / 5 + : 0, + 'Slow_launch_threads' => 0, + + // depends on Key_read_requests + // normally lower then 1:0.01 + 'Key_reads' => isset($this->data->status['Key_read_requests']) + ? (0.01 * $this->data->status['Key_read_requests']) : 0, + // depends on Key_write_requests + // normally nearly 1:1 + 'Key_writes' => isset($this->data->status['Key_write_requests']) + ? (0.9 * $this->data->status['Key_write_requests']) : 0, + + 'Key_buffer_fraction' => 0.5, + + // alert if more than 95% of thread cache is in use + 'Threads_cached' => isset($this->data->variables['thread_cache_size']) + ? 0.95 * $this->data->variables['thread_cache_size'] : 0, + + // higher is better + // variable => min value + //'Handler read key' => '> ', + ]; + } + + /** + * Returns a list of variable descriptions + * + * @return array + */ + private function getDescriptions(): array + { + /** + * Messages are built using the message name + */ + return [ + 'Aborted_clients' => __( + 'The number of connections that were aborted because the client died' + . ' without closing the connection properly.' + ), + 'Aborted_connects' => __( + 'The number of failed attempts to connect to the MySQL server.' + ), + 'Binlog_cache_disk_use' => __( + 'The number of transactions that used the temporary binary log cache' + . ' but that exceeded the value of binlog_cache_size and used a' + . ' temporary file to store statements from the transaction.' + ), + 'Binlog_cache_use' => __( + 'The number of transactions that used the temporary binary log cache.' + ), + 'Connections' => __( + 'The number of connection attempts (successful or not)' + . ' to the MySQL server.' + ), + 'Created_tmp_disk_tables' => __( + 'The number of temporary tables on disk created automatically by' + . ' the server while executing statements. If' + . ' Created_tmp_disk_tables is big, you may want to increase the' + . ' tmp_table_size value to cause temporary tables to be' + . ' memory-based instead of disk-based.' + ), + 'Created_tmp_files' => __( + 'How many temporary files mysqld has created.' + ), + 'Created_tmp_tables' => __( + 'The number of in-memory temporary tables created automatically' + . ' by the server while executing statements.' + ), + 'Delayed_errors' => __( + 'The number of rows written with INSERT DELAYED for which some' + . ' error occurred (probably duplicate key).' + ), + 'Delayed_insert_threads' => __( + 'The number of INSERT DELAYED handler threads in use. Every' + . ' different table on which one uses INSERT DELAYED gets' + . ' its own thread.' + ), + 'Delayed_writes' => __( + 'The number of INSERT DELAYED rows written.' + ), + 'Flush_commands' => __( + 'The number of executed FLUSH statements.' + ), + 'Handler_commit' => __( + 'The number of internal COMMIT statements.' + ), + 'Handler_delete' => __( + 'The number of times a row was deleted from a table.' + ), + 'Handler_discover' => __( + 'The MySQL server can ask the NDB Cluster storage engine if it' + . ' knows about a table with a given name. This is called discovery.' + . ' Handler_discover indicates the number of time tables have been' + . ' discovered.' + ), + 'Handler_read_first' => __( + 'The number of times the first entry was read from an index. If this' + . ' is high, it suggests that the server is doing a lot of full' + . ' index scans; for example, SELECT col1 FROM foo, assuming that' + . ' col1 is indexed.' + ), + 'Handler_read_key' => __( + 'The number of requests to read a row based on a key. If this is' + . ' high, it is a good indication that your queries and tables' + . ' are properly indexed.' + ), + 'Handler_read_next' => __( + 'The number of requests to read the next row in key order. This is' + . ' incremented if you are querying an index column with a range' + . ' constraint or if you are doing an index scan.' + ), + 'Handler_read_prev' => __( + 'The number of requests to read the previous row in key order.' + . ' This read method is mainly used to optimize ORDER BY … DESC.' + ), + 'Handler_read_rnd' => __( + 'The number of requests to read a row based on a fixed position.' + . ' This is high if you are doing a lot of queries that require' + . ' sorting of the result. You probably have a lot of queries that' + . ' require MySQL to scan whole tables or you have joins that' + . ' don\'t use keys properly.' + ), + 'Handler_read_rnd_next' => __( + 'The number of requests to read the next row in the data file.' + . ' This is high if you are doing a lot of table scans. Generally' + . ' this suggests that your tables are not properly indexed or that' + . ' your queries are not written to take advantage of the indexes' + . ' you have.' + ), + 'Handler_rollback' => __( + 'The number of internal ROLLBACK statements.' + ), + 'Handler_update' => __( + 'The number of requests to update a row in a table.' + ), + 'Handler_write' => __( + 'The number of requests to insert a row in a table.' + ), + 'Innodb_buffer_pool_pages_data' => __( + 'The number of pages containing data (dirty or clean).' + ), + 'Innodb_buffer_pool_pages_dirty' => __( + 'The number of pages currently dirty.' + ), + 'Innodb_buffer_pool_pages_flushed' => __( + 'The number of buffer pool pages that have been requested' + . ' to be flushed.' + ), + 'Innodb_buffer_pool_pages_free' => __( + 'The number of free pages.' + ), + 'Innodb_buffer_pool_pages_latched' => __( + 'The number of latched pages in InnoDB buffer pool. These are pages' + . ' currently being read or written or that can\'t be flushed or' + . ' removed for some other reason.' + ), + 'Innodb_buffer_pool_pages_misc' => __( + 'The number of pages busy because they have been allocated for' + . ' administrative overhead such as row locks or the adaptive' + . ' hash index. This value can also be calculated as' + . ' Innodb_buffer_pool_pages_total - Innodb_buffer_pool_pages_free' + . ' - Innodb_buffer_pool_pages_data.' + ), + 'Innodb_buffer_pool_pages_total' => __( + 'Total size of buffer pool, in pages.' + ), + 'Innodb_buffer_pool_read_ahead_rnd' => __( + 'The number of "random" read-aheads InnoDB initiated. This happens' + . ' when a query is to scan a large portion of a table but in' + . ' random order.' + ), + 'Innodb_buffer_pool_read_ahead_seq' => __( + 'The number of sequential read-aheads InnoDB initiated. This' + . ' happens when InnoDB does a sequential full table scan.' + ), + 'Innodb_buffer_pool_read_requests' => __( + 'The number of logical read requests InnoDB has done.' + ), + 'Innodb_buffer_pool_reads' => __( + 'The number of logical reads that InnoDB could not satisfy' + . ' from buffer pool and had to do a single-page read.' + ), + 'Innodb_buffer_pool_wait_free' => __( + 'Normally, writes to the InnoDB buffer pool happen in the' + . ' background. However, if it\'s necessary to read or create a page' + . ' and no clean pages are available, it\'s necessary to wait for' + . ' pages to be flushed first. This counter counts instances of' + . ' these waits. If the buffer pool size was set properly, this' + . ' value should be small.' + ), + 'Innodb_buffer_pool_write_requests' => __( + 'The number writes done to the InnoDB buffer pool.' + ), + 'Innodb_data_fsyncs' => __( + 'The number of fsync() operations so far.' + ), + 'Innodb_data_pending_fsyncs' => __( + 'The current number of pending fsync() operations.' + ), + 'Innodb_data_pending_reads' => __( + 'The current number of pending reads.' + ), + 'Innodb_data_pending_writes' => __( + 'The current number of pending writes.' + ), + 'Innodb_data_read' => __( + 'The amount of data read so far, in bytes.' + ), + 'Innodb_data_reads' => __( + 'The total number of data reads.' + ), + 'Innodb_data_writes' => __( + 'The total number of data writes.' + ), + 'Innodb_data_written' => __( + 'The amount of data written so far, in bytes.' + ), + 'Innodb_dblwr_pages_written' => __( + 'The number of pages that have been written for' + . ' doublewrite operations.' + ), + 'Innodb_dblwr_writes' => __( + 'The number of doublewrite operations that have been performed.' + ), + 'Innodb_log_waits' => __( + 'The number of waits we had because log buffer was too small and' + . ' we had to wait for it to be flushed before continuing.' + ), + 'Innodb_log_write_requests' => __( + 'The number of log write requests.' + ), + 'Innodb_log_writes' => __( + 'The number of physical writes to the log file.' + ), + 'Innodb_os_log_fsyncs' => __( + 'The number of fsync() writes done to the log file.' + ), + 'Innodb_os_log_pending_fsyncs' => __( + 'The number of pending log file fsyncs.' + ), + 'Innodb_os_log_pending_writes' => __( + 'Pending log file writes.' + ), + 'Innodb_os_log_written' => __( + 'The number of bytes written to the log file.' + ), + 'Innodb_pages_created' => __( + 'The number of pages created.' + ), + 'Innodb_page_size' => __( + 'The compiled-in InnoDB page size (default 16KB). Many values are' + . ' counted in pages; the page size allows them to be easily' + . ' converted to bytes.' + ), + 'Innodb_pages_read' => __( + 'The number of pages read.' + ), + 'Innodb_pages_written' => __( + 'The number of pages written.' + ), + 'Innodb_row_lock_current_waits' => __( + 'The number of row locks currently being waited for.' + ), + 'Innodb_row_lock_time_avg' => __( + 'The average time to acquire a row lock, in milliseconds.' + ), + 'Innodb_row_lock_time' => __( + 'The total time spent in acquiring row locks, in milliseconds.' + ), + 'Innodb_row_lock_time_max' => __( + 'The maximum time to acquire a row lock, in milliseconds.' + ), + 'Innodb_row_lock_waits' => __( + 'The number of times a row lock had to be waited for.' + ), + 'Innodb_rows_deleted' => __( + 'The number of rows deleted from InnoDB tables.' + ), + 'Innodb_rows_inserted' => __( + 'The number of rows inserted in InnoDB tables.' + ), + 'Innodb_rows_read' => __( + 'The number of rows read from InnoDB tables.' + ), + 'Innodb_rows_updated' => __( + 'The number of rows updated in InnoDB tables.' + ), + 'Key_blocks_not_flushed' => __( + 'The number of key blocks in the key cache that have changed but' + . ' haven\'t yet been flushed to disk. It used to be known as' + . ' Not_flushed_key_blocks.' + ), + 'Key_blocks_unused' => __( + 'The number of unused blocks in the key cache. You can use this' + . ' value to determine how much of the key cache is in use.' + ), + 'Key_blocks_used' => __( + 'The number of used blocks in the key cache. This value is a' + . ' high-water mark that indicates the maximum number of blocks' + . ' that have ever been in use at one time.' + ), + 'Key_buffer_fraction_%' => __( + 'Percentage of used key cache (calculated value)' + ), + 'Key_read_requests' => __( + 'The number of requests to read a key block from the cache.' + ), + 'Key_reads' => __( + 'The number of physical reads of a key block from disk. If Key_reads' + . ' is big, then your key_buffer_size value is probably too small.' + . ' The cache miss rate can be calculated as' + . ' Key_reads/Key_read_requests.' + ), + 'Key_read_ratio_%' => __( + 'Key cache miss calculated as rate of physical reads compared' + . ' to read requests (calculated value)' + ), + 'Key_write_requests' => __( + 'The number of requests to write a key block to the cache.' + ), + 'Key_writes' => __( + 'The number of physical writes of a key block to disk.' + ), + 'Key_write_ratio_%' => __( + 'Percentage of physical writes compared' + . ' to write requests (calculated value)' + ), + 'Last_query_cost' => __( + 'The total cost of the last compiled query as computed by the query' + . ' optimizer. Useful for comparing the cost of different query' + . ' plans for the same query. The default value of 0 means that' + . ' no query has been compiled yet.' + ), + 'Max_used_connections' => __( + 'The maximum number of connections that have been in use' + . ' simultaneously since the server started.' + ), + 'Not_flushed_delayed_rows' => __( + 'The number of rows waiting to be written in INSERT DELAYED queues.' + ), + 'Opened_tables' => __( + 'The number of tables that have been opened. If opened tables is' + . ' big, your table cache value is probably too small.' + ), + 'Open_files' => __( + 'The number of files that are open.' + ), + 'Open_streams' => __( + 'The number of streams that are open (used mainly for logging).' + ), + 'Open_tables' => __( + 'The number of tables that are open.' + ), + 'Qcache_free_blocks' => __( + 'The number of free memory blocks in query cache. High numbers can' + . ' indicate fragmentation issues, which may be solved by issuing' + . ' a FLUSH QUERY CACHE statement.' + ), + 'Qcache_free_memory' => __( + 'The amount of free memory for query cache.' + ), + 'Qcache_hits' => __( + 'The number of cache hits.' + ), + 'Qcache_inserts' => __( + 'The number of queries added to the cache.' + ), + 'Qcache_lowmem_prunes' => __( + 'The number of queries that have been removed from the cache to' + . ' free up memory for caching new queries. This information can' + . ' help you tune the query cache size. The query cache uses a' + . ' least recently used (LRU) strategy to decide which queries' + . ' to remove from the cache.' + ), + 'Qcache_not_cached' => __( + 'The number of non-cached queries (not cachable, or not cached' + . ' due to the query_cache_type setting).' + ), + 'Qcache_queries_in_cache' => __( + 'The number of queries registered in the cache.' + ), + 'Qcache_total_blocks' => __( + 'The total number of blocks in the query cache.' + ), + 'Rpl_status' => __( + 'The status of failsafe replication (not yet implemented).' + ), + 'Select_full_join' => __( + 'The number of joins that do not use indexes. If this value is' + . ' not 0, you should carefully check the indexes of your tables.' + ), + 'Select_full_range_join' => __( + 'The number of joins that used a range search on a reference table.' + ), + 'Select_range_check' => __( + 'The number of joins without keys that check for key usage after' + . ' each row. (If this is not 0, you should carefully check the' + . ' indexes of your tables.)' + ), + 'Select_range' => __( + 'The number of joins that used ranges on the first table. (It\'s' + . ' normally not critical even if this is big.)' + ), + 'Select_scan' => __( + 'The number of joins that did a full scan of the first table.' + ), + 'Slave_open_temp_tables' => __( + 'The number of temporary tables currently' + . ' open by the slave SQL thread.' + ), + 'Slave_retried_transactions' => __( + 'Total (since startup) number of times the replication slave SQL' + . ' thread has retried transactions.' + ), + 'Slave_running' => __( + 'This is ON if this server is a slave that is connected to a master.' + ), + 'Slow_launch_threads' => __( + 'The number of threads that have taken more than slow_launch_time' + . ' seconds to create.' + ), + 'Slow_queries' => __( + 'The number of queries that have taken more than long_query_time' + . ' seconds.' + ), + 'Sort_merge_passes' => __( + 'The number of merge passes the sort algorithm has had to do.' + . ' If this value is large, you should consider increasing the' + . ' value of the sort_buffer_size system variable.' + ), + 'Sort_range' => __( + 'The number of sorts that were done with ranges.' + ), + 'Sort_rows' => __( + 'The number of sorted rows.' + ), + 'Sort_scan' => __( + 'The number of sorts that were done by scanning the table.' + ), + 'Table_locks_immediate' => __( + 'The number of times that a table lock was acquired immediately.' + ), + 'Table_locks_waited' => __( + 'The number of times that a table lock could not be acquired' + . ' immediately and a wait was needed. If this is high, and you have' + . ' performance problems, you should first optimize your queries,' + . ' and then either split your table or tables or use replication.' + ), + 'Threads_cached' => __( + 'The number of threads in the thread cache. The cache hit rate can' + . ' be calculated as Threads_created/Connections. If this value is' + . ' red you should raise your thread_cache_size.' + ), + 'Threads_connected' => __( + 'The number of currently open connections.' + ), + 'Threads_created' => __( + 'The number of threads created to handle connections. If' + . ' Threads_created is big, you may want to increase the' + . ' thread_cache_size value. (Normally this doesn\'t give a notable' + . ' performance improvement if you have a good thread' + . ' implementation.)' + ), + 'Threads_cache_hitrate_%' => __( + 'Thread cache hit rate (calculated value)' + ), + 'Threads_running' => __( + 'The number of threads that are not sleeping.' + ), + ]; + } +} -- cgit