server_status.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * displays status variables with descriptions and some hints an optmizing
   5  *  + reset status variables
   6  *
   7  * @version $Id$
   8  * @package phpMyAdmin
   9  */
  10
  11 /**
  12  * no need for variables importing
  13  * @ignore
  14  */
  15 if (! defined('PMA_NO_VARIABLES_IMPORT')) {
  16     define('PMA_NO_VARIABLES_IMPORT', true);
  17 }
  18 require_once './libraries/common.inc.php';
  19
  20 /**
  21  * Does the common work
  22  */
  23 require './libraries/server_common.inc.php';
  24
  25
  26 /**
  27  * Displays the links
  28  */
  29 require './libraries/server_links.inc.php';
  30
  31 /**
  32  * Replication library
  33  */
  34 require './libraries/replication.inc.php';
  35 require_once './libraries/replication_gui.lib.php';
  36
  37 /**
  38  * Messages are built using the message name
  39  */
  40 $strShowStatusBinlog_cache_disk_useDescr = __('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.');
  41 $strShowStatusBinlog_cache_useDescr = __('The number of transactions that used the temporary binary log cache.');
  42 $strShowStatusCreated_tmp_disk_tablesDescr = __('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.');
  43 $strShowStatusCreated_tmp_filesDescr = __('How many temporary files mysqld has created.');
  44 $strShowStatusCreated_tmp_tablesDescr = __('The number of in-memory temporary tables created automatically by the server while executing statements.');
  45 $strShowStatusDelayed_errorsDescr = __('The number of rows written with INSERT DELAYED for which some error occurred (probably duplicate key).');
  46 $strShowStatusDelayed_insert_threadsDescr = __('The number of INSERT DELAYED handler threads in use. Every different table on which one uses INSERT DELAYED gets its own thread.');
  47 $strShowStatusDelayed_writesDescr = __('The number of INSERT DELAYED rows written.');
  48 $strShowStatusFlush_commandsDescr  = __('The number of executed FLUSH statements.');
  49 $strShowStatusHandler_commitDescr = __('The number of internal COMMIT statements.');
  50 $strShowStatusHandler_deleteDescr = __('The number of times a row was deleted from a table.');
  51 $strShowStatusHandler_discoverDescr = __('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.');
  52 $strShowStatusHandler_read_firstDescr = __('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.');
  53 $strShowStatusHandler_read_keyDescr = __('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.');
  54 $strShowStatusHandler_read_nextDescr = __('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.');
  55 $strShowStatusHandler_read_prevDescr = __('The number of requests to read the previous row in key order. This read method is mainly used to optimize ORDER BY ... DESC.');
  56 $strShowStatusHandler_read_rndDescr = __('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.');
  57 $strShowStatusHandler_read_rnd_nextDescr = __('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.');
  58 $strShowStatusHandler_rollbackDescr = __('The number of internal ROLLBACK statements.');
  59 $strShowStatusHandler_updateDescr = __('The number of requests to update a row in a table.');
  60 $strShowStatusHandler_writeDescr = __('The number of requests to insert a row in a table.');
  61 $strShowStatusInnodb_buffer_pool_pages_dataDescr = __('The number of pages containing data (dirty or clean).');
  62 $strShowStatusInnodb_buffer_pool_pages_dirtyDescr = __('The number of pages currently dirty.');
  63 $strShowStatusInnodb_buffer_pool_pages_flushedDescr = __('The number of buffer pool pages that have been requested to be flushed.');
  64 $strShowStatusInnodb_buffer_pool_pages_freeDescr = __('The number of free pages.');
  65 $strShowStatusInnodb_buffer_pool_pages_latchedDescr = __('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.');
  66 $strShowStatusInnodb_buffer_pool_pages_miscDescr = __('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.');
  67 $strShowStatusInnodb_buffer_pool_pages_totalDescr = __('Total size of buffer pool, in pages.');
  68 $strShowStatusInnodb_buffer_pool_read_ahead_rndDescr = __('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.');
  69 $strShowStatusInnodb_buffer_pool_read_ahead_seqDescr = __('The number of sequential read-aheads InnoDB initiated. This happens when InnoDB does a sequential full table scan.');
  70 $strShowStatusInnodb_buffer_pool_read_requestsDescr = __('The number of logical read requests InnoDB has done.');
  71 $strShowStatusInnodb_buffer_pool_readsDescr = __('The number of logical reads that InnoDB could not satisfy from buffer pool and had to do a single-page read.');
  72 $strShowStatusInnodb_buffer_pool_wait_freeDescr = __('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.');
  73 $strShowStatusInnodb_buffer_pool_write_requestsDescr = __('The number writes done to the InnoDB buffer pool.');
  74 $strShowStatusInnodb_data_fsyncsDescr = __('The number of fsync() operations so far.');
  75 $strShowStatusInnodb_data_pending_fsyncsDescr = __('The current number of pending fsync() operations.');
  76 $strShowStatusInnodb_data_pending_readsDescr = __('The current number of pending reads.');
  77 $strShowStatusInnodb_data_pending_writesDescr = __('The current number of pending writes.');
  78 $strShowStatusInnodb_data_readDescr = __('The amount of data read so far, in bytes.');
  79 $strShowStatusInnodb_data_readsDescr = __('The total number of data reads.');
  80 $strShowStatusInnodb_data_writesDescr = __('The total number of data writes.');
  81 $strShowStatusInnodb_data_writtenDescr = __('The amount of data written so far, in bytes.');
  82 $strShowStatusInnodb_dblwr_pages_writtenDescr = __('The number of pages that have been written for doublewrite operations.');
  83 $strShowStatusInnodb_dblwr_writesDescr = __('The number of doublewrite operations that have been performed.');
  84 $strShowStatusInnodb_log_waitsDescr = __('The number of waits we had because log buffer was too small and we had to wait for it to be flushed before continuing.');
  85 $strShowStatusInnodb_log_write_requestsDescr = __('The number of log write requests.');
  86 $strShowStatusInnodb_log_writesDescr = __('The number of physical writes to the log file.');
  87 $strShowStatusInnodb_os_log_fsyncsDescr = __('The number of fsync() writes done to the log file.');
  88 $strShowStatusInnodb_os_log_pending_fsyncsDescr = __('The number of pending log file fsyncs.');
  89 $strShowStatusInnodb_os_log_pending_writesDescr = __('Pending log file writes.');
  90 $strShowStatusInnodb_os_log_writtenDescr = __('The number of bytes written to the log file.');
  91 $strShowStatusInnodb_pages_createdDescr = __('The number of pages created.');
  92 $strShowStatusInnodb_page_sizeDescr = __('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.');
  93 $strShowStatusInnodb_pages_readDescr = __('The number of pages read.');
  94 $strShowStatusInnodb_pages_writtenDescr = __('The number of pages written.');
  95 $strShowStatusInnodb_row_lock_current_waitsDescr = __('The number of row locks currently being waited for.');
  96 $strShowStatusInnodb_row_lock_time_avgDescr = __('The average time to acquire a row lock, in milliseconds.');
  97 $strShowStatusInnodb_row_lock_timeDescr = __('The total time spent in acquiring row locks, in milliseconds.');
  98 $strShowStatusInnodb_row_lock_time_maxDescr = __('The maximum time to acquire a row lock, in milliseconds.');
  99 $strShowStatusInnodb_row_lock_waitsDescr = __('The number of times a row lock had to be waited for.');
 100 $strShowStatusInnodb_rows_deletedDescr = __('The number of rows deleted from InnoDB tables.');
 101 $strShowStatusInnodb_rows_insertedDescr = __('The number of rows inserted in InnoDB tables.');
 102 $strShowStatusInnodb_rows_readDescr = __('The number of rows read from InnoDB tables.');
 103 $strShowStatusInnodb_rows_updatedDescr = __('The number of rows updated in InnoDB tables.');
 104 $strShowStatusKey_blocks_not_flushedDescr = __('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.');
 105 $strShowStatusKey_blocks_unusedDescr = __('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.');
 106 $strShowStatusKey_blocks_usedDescr = __('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.');
 107 $strShowStatusKey_read_requestsDescr = __('The number of requests to read a key block from the cache.');
 108 $strShowStatusKey_readsDescr = __('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.');
 109 $strShowStatusKey_write_requestsDescr = __('The number of requests to write a key block to the cache.');
 110 $strShowStatusKey_writesDescr = __('The number of physical writes of a key block to disk.');
 111 $strShowStatusLast_query_costDescr = __('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.');
 112 $strShowStatusNot_flushed_delayed_rowsDescr = __('The number of rows waiting to be written in INSERT DELAYED queues.');
 113 $strShowStatusOpened_tablesDescr = __('The number of tables that have been opened. If opened tables is big, your table cache value is probably too small.');
 114 $strShowStatusOpen_filesDescr = __('The number of files that are open.');
 115 $strShowStatusOpen_streamsDescr = __('The number of streams that are open (used mainly for logging).');
 116 $strShowStatusOpen_tablesDescr = __('The number of tables that are open.');
 117 $strShowStatusQcache_free_blocksDescr = __('The number of free memory blocks in query cache.');
 118 $strShowStatusQcache_free_memoryDescr = __('The amount of free memory for query cache.');
 119 $strShowStatusQcache_hitsDescr = __('The number of cache hits.');
 120 $strShowStatusQcache_insertsDescr = __('The number of queries added to the cache.');
 121 $strShowStatusQcache_lowmem_prunesDescr = __('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.');
 122 $strShowStatusQcache_not_cachedDescr = __('The number of non-cached queries (not cachable, or not cached due to the query_cache_type setting).');
 123 $strShowStatusQcache_queries_in_cacheDescr = __('The number of queries registered in the cache.');
 124 $strShowStatusQcache_total_blocksDescr = __('The total number of blocks in the query cache.');
 125 $strShowStatusReset = _pgettext('$strShowStatusReset', 'Reset');
 126 $strShowStatusRpl_statusDescr = __('The status of failsafe replication (not yet implemented).');
 127 $strShowStatusSelect_full_joinDescr = __('The number of joins that do not use indexes. If this value is not 0, you should carefully check the indexes of your tables.');
 128 $strShowStatusSelect_full_range_joinDescr = __('The number of joins that used a range search on a reference table.');
 129 $strShowStatusSelect_range_checkDescr = __('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.)');
 130 $strShowStatusSelect_rangeDescr = __('The number of joins that used ranges on the first table. (It\'s normally not critical even if this is big.)');
 131 $strShowStatusSelect_scanDescr = __('The number of joins that did a full scan of the first table.');
 132 $strShowStatusSlave_open_temp_tablesDescr = __('The number of temporary tables currently open by the slave SQL thread.');
 133 $strShowStatusSlave_retried_transactionsDescr = __('Total (since startup) number of times the replication slave SQL thread has retried transactions.');
 134 $strShowStatusSlave_runningDescr = __('This is ON if this server is a slave that is connected to a master.');
 135 $strShowStatusSlow_launch_threadsDescr = __('The number of threads that have taken more than slow_launch_time seconds to create.');
 136 $strShowStatusSlow_queriesDescr = __('The number of queries that have taken more than long_query_time seconds.');
 137 $strShowStatusSort_merge_passesDescr = __('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.');
 138 $strShowStatusSort_rangeDescr = __('The number of sorts that were done with ranges.');
 139 $strShowStatusSort_rowsDescr = __('The number of sorted rows.');
 140 $strShowStatusSort_scanDescr = __('The number of sorts that were done by scanning the table.');
 141 $strShowStatusTable_locks_immediateDescr = __('The number of times that a table lock was acquired immediately.');
 142 $strShowStatusTable_locks_waitedDescr = __('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.');
 143 $strShowStatusThreads_cachedDescr = __('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.');
 144 $strShowStatusThreads_connectedDescr = __('The number of currently open connections.');
 145 $strShowStatusThreads_createdDescr = __('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.)');
 146 $strShowStatusThreads_runningDescr = __('The number of threads that are not sleeping.');
 147
 148 /**
 149  * Displays the sub-page heading
 150  */
 151 echo '<div id="serverstatus">' . "\n";
 152 echo '<h2>' . "\n"
 153    . ($GLOBALS['cfg']['MainPageIconic']
 154        ? '<img class="icon" src="' . $GLOBALS['pmaThemeImage'] .
 155          's_status.png" width="16" height="16" alt="" />'
 156        : '')
 157    . __('Runtime Information') . "\n"
 158    . '</h2>' . "\n";
 159
 160
 161 /**
 162  * flush status variables if requested
 163  */
 164 if (isset($_REQUEST['flush'])) {
 165     $_flush_commands = array(
 166         'STATUS',
 167         'TABLES',
 168         'QUERY CACHE',
 169     );
 170
 171     if (in_array($_REQUEST['flush'], $_flush_commands)) {
 172         PMA_DBI_query('FLUSH ' . $_REQUEST['flush'] . ';');
 173     }
 174     unset($_flush_commands);
 175 }
 176
 177
 178 /**
 179  * get status from server
 180  */
 181 $server_status = PMA_DBI_fetch_result('SHOW GLOBAL STATUS', 0, 1);
 182
 183 /**
 184  * for some calculations we require also some server settings
 185  */
 186 $server_variables = PMA_DBI_fetch_result('SHOW GLOBAL VARIABLES', 0, 1);
 187
 188 /**
 189  * starttime calculation
 190  */
 191 $start_time = PMA_DBI_fetch_value(
 192     'SELECT UNIX_TIMESTAMP() - ' . $server_status['Uptime']);
 193
 194
 195 /**
 196  * cleanup some deprecated values
 197  */
 198 $deprecated = array(
 199     'Com_prepare_sql' => 'Com_stmt_prepare',
 200     'Com_execute_sql' => 'Com_stmt_execute',
 201     'Com_dealloc_sql' => 'Com_stmt_close',
 202 );
 203
 204 foreach ($deprecated as $old => $new) {
 205     if (isset($server_status[$old])
 206       && isset($server_status[$new])) {
 207         unset($server_status[$old]);
 208     }
 209 }
 210 unset($deprecated);
 211
 212
 213 /**
 214  * calculate some values
 215  */
 216 // Key_buffer_fraction
 217 if (isset($server_status['Key_blocks_unused'])
 218   && isset($server_variables['key_cache_block_size'])
 219   && isset($server_variables['key_buffer_size'])) {
 220     $server_status['Key_buffer_fraction_%'] =
 221         100
 222       - $server_status['Key_blocks_unused']
 223       * $server_variables['key_cache_block_size']
 224       / $server_variables['key_buffer_size']
 225       * 100;
 226 } elseif (
 227      isset($server_status['Key_blocks_used'])
 228   && isset($server_variables['key_buffer_size'])) {
 229     $server_status['Key_buffer_fraction_%'] =
 230         $server_status['Key_blocks_used']
 231       * 1024
 232       / $server_variables['key_buffer_size'];
 233   }
 234
 235 // Ratio for key read/write
 236 if (isset($server_status['Key_writes'])
 237     && isset($server_status['Key_write_requests'])
 238     && $server_status['Key_write_requests'] > 0)
 239         $server_status['Key_write_ratio_%'] = 100 * $server_status['Key_writes'] / $server_status['Key_write_requests'];
 240
 241 if (isset($server_status['Key_reads'])
 242     && isset($server_status['Key_read_requests'])
 243     && $server_status['Key_read_requests'] > 0)
 244         $server_status['Key_read_ratio_%'] = 100 * $server_status['Key_reads'] / $server_status['Key_read_requests'];
 245
 246 // Threads_cache_hitrate
 247 if (isset($server_status['Threads_created'])
 248   && isset($server_status['Connections'])
 249   && $server_status['Connections'] > 0) {
 250     $server_status['Threads_cache_hitrate_%'] =
 251         100
 252       - $server_status['Threads_created']
 253       / $server_status['Connections']
 254       * 100;
 255 }
 256
 257 // Format Uptime_since_flush_status : show as days, hours, minutes, seconds
 258 if (isset($server_status['Uptime_since_flush_status'])) {
 259     $server_status['Uptime_since_flush_status'] = PMA_timespanFormat($server_status['Uptime_since_flush_status']);
 260 }
 261
 262 /**
 263  * define some alerts
 264  */
 265 // name => max value before alert
 266 $alerts = array(
 267     // lower is better
 268     // variable => max value
 269     'Aborted_clients' => 0,
 270     'Aborted_connects' => 0,
 271
 272     'Binlog_cache_disk_use' => 0,
 273
 274     'Created_tmp_disk_tables' => 0,
 275
 276     'Handler_read_rnd' => 0,
 277     'Handler_read_rnd_next' => 0,
 278
 279     'Innodb_buffer_pool_pages_dirty' => 0,
 280     'Innodb_buffer_pool_reads' => 0,
 281     'Innodb_buffer_pool_wait_free' => 0,
 282     'Innodb_log_waits' => 0,
 283     'Innodb_row_lock_time_avg' => 10, // ms
 284     'Innodb_row_lock_time_max' => 50, // ms
 285     'Innodb_row_lock_waits' => 0,
 286
 287     'Slow_queries' => 0,
 288     'Delayed_errors' => 0,
 289     'Select_full_join' => 0,
 290     'Select_range_check' => 0,
 291     'Sort_merge_passes' => 0,
 292     'Opened_tables' => 0,
 293     'Table_locks_waited' => 0,
 294     'Qcache_lowmem_prunes' => 0,
 295     'Slow_launch_threads' => 0,
 296
 297     // depends on Key_read_requests
 298     // normaly lower then 1:0.01
 299     'Key_reads' => (0.01 * $server_status['Key_read_requests']),
 300     // depends on Key_write_requests
 301     // normaly nearly 1:1
 302     'Key_writes' => (0.9 * $server_status['Key_write_requests']),
 303
 304     'Key_buffer_fraction' => 0.5,
 305
 306     // alert if more than 95% of thread cache is in use
 307     'Threads_cached' => 0.95 * $server_variables['thread_cache_size']
 308
 309     // higher is better
 310     // variable => min value
 311     //'Handler read key' => '> ',
 312 );
 313
 314
 315 /**
 316  * split variables in sections
 317  */
 318 $allocations = array(
 319     // variable name => section
 320
 321     'Com_'              => 'com',
 322     'Innodb_'           => 'innodb',
 323     'Ndb_'              => 'ndb',
 324     'Handler_'          => 'handler',
 325     'Qcache_'           => 'qcache',
 326     'Threads_'          => 'threads',
 327     'Slow_launch_threads' => 'threads',
 328
 329     'Binlog_cache_'     => 'binlog_cache',
 330     'Created_tmp_'      => 'created_tmp',
 331     'Key_'              => 'key',
 332
 333     'Delayed_'          => 'delayed',
 334     'Not_flushed_delayed_rows' => 'delayed',
 335
 336     'Flush_commands'    => 'query',
 337     'Last_query_cost'   => 'query',
 338     'Slow_queries'      => 'query',
 339
 340     'Select_'           => 'select',
 341     'Sort_'             => 'sort',
 342
 343     'Open_tables'       => 'table',
 344     'Opened_tables'     => 'table',
 345     'Table_locks_'      => 'table',
 346
 347     'Rpl_status'        => 'repl',
 348     'Slave_'            => 'repl',
 349
 350     'Tc_'               => 'tc',
 351
 352     'Ssl_'              => 'ssl',
 353 );
 354
 355 $sections = array(
 356     // section => section name (description)
 357     'com'           => array('title' => ''),
 358     'query'         => array('title' => __('SQL query')),
 359     'innodb'        => array('title' => 'InnoDB'),
 360     'ndb'           => array('title' => 'NDB'),
 361     'handler'       => array('title' => __('Handler')),
 362     'qcache'        => array('title' => __('Query cache')),
 363     'threads'       => array('title' => __('Threads')),
 364     'binlog_cache'  => array('title' => __('Binary log')),
 365     'created_tmp'   => array('title' => __('Temporary data')),
 366     'delayed'       => array('title' => __('Delayed inserts')),
 367     'key'           => array('title' => __('Key cache')),
 368     'select'        => array('title' => __('Joins')),
 369     'repl'          => array('title' => __('Replication')),
 370     'sort'          => array('title' => __('Sorting')),
 371     'table'         => array('title' => __('Tables')),
 372     'tc'            => array('title' => __('Transaction coordinator')),
 373     'ssl'           => array('title' => 'SSL'),
 374 );
 375
 376 /**
 377  * define some needfull links/commands
 378  */
 379 // variable or section name => (name => url)
 380 $links = array();
 381
 382 $links['table'][__('Flush (close) all tables')]
 383     = $PMA_PHP_SELF . '?flush=TABLES&amp;' . PMA_generate_common_url();
 384 $links['table'][__('Show open tables')]
 385     = 'sql.php?sql_query=' . urlencode('SHOW OPEN TABLES') .
 386       '&amp;goto=server_status.php&amp;' . PMA_generate_common_url();
 387
 388 if ($server_master_status) {
 389   $links['repl'][__('Show slave hosts')]
 390     = 'sql.php?sql_query=' . urlencode('SHOW SLAVE HOSTS') .
 391       '&amp;goto=server_status.php&amp;' . PMA_generate_common_url();
 392   $links['repl'][__('Show master status')] = '#replication_master';
 393 }
 394 if ($server_slave_status) {
 395   $links['repl'][__('Show slave status')] = '#replication_slave';
 396 }
 397
 398 $links['repl']['doc'] = 'replication';
 399
 400 $links['qcache'][__('Flush query cache')]
 401     = $PMA_PHP_SELF . '?flush=' . urlencode('QUERY CACHE') . '&amp;' .
 402       PMA_generate_common_url();
 403 $links['qcache']['doc'] = 'query_cache';
 404
 405 $links['threads'][__('Show processes')]
 406     = 'server_processlist.php?' . PMA_generate_common_url();
 407 $links['threads']['doc'] = 'mysql_threads';
 408
 409 $links['key']['doc'] = 'myisam_key_cache';
 410
 411 $links['binlog_cache']['doc'] = 'binary_log';
 412
 413 $links['Slow_queries']['doc'] = 'slow_query_log';
 414
 415 $links['innodb'][__('Variables')]
 416     = 'server_engines.php?engine=InnoDB&amp;' . PMA_generate_common_url();
 417 $links['innodb'][__('InnoDB Status')]
 418     = 'server_engines.php?engine=InnoDB&amp;page=Status&amp;' .
 419       PMA_generate_common_url();
 420 $links['innodb']['doc'] = 'innodb';
 421
 422
 423 // sort status vars into arrays
 424 foreach ($server_status as $name => $value) {
 425     if (isset($allocations[$name])) {
 426         $sections[$allocations[$name]]['vars'][$name] = $value;
 427         unset($server_status[$name]);
 428     } else {
 429         foreach ($allocations as $filter => $section) {
 430             if (preg_match('/^' . $filter . '/', $name)
 431               && isset($server_status[$name])) {
 432                 unset($server_status[$name]);
 433                 $sections[$section]['vars'][$name] = $value;
 434             }
 435         }
 436     }
 437 }
 438 unset($name, $value, $filter, $section, $allocations);
 439
 440 // rest
 441 $sections['all']['vars'] =& $server_status;
 442
 443 $hour_factor    = 3600 / $server_status['Uptime'];
 444
 445 /**
 446  * start output
 447  */
 448 ?>
 449 <div id="statuslinks">
 450     <a href="<?php echo
 451         $PMA_PHP_SELF . '?' . PMA_generate_common_url(); ?>"
 452        ><?php echo __('Refresh'); ?></a>
 453     <a href="<?php echo
 454         $PMA_PHP_SELF . '?flush=STATUS&amp;' . PMA_generate_common_url(); ?>"
 455        ><?php echo _pgettext('for Show status', 'Reset'); ?></a>
 456        <?php echo PMA_showMySQLDocu('server_status_variables','server_status_variables'); ?>
 457 </div>
 458
 459 <p>
 460 <?php
 461 echo sprintf(__('This MySQL server has been running for %s. It started up on %s.'),
 462     PMA_timespanFormat($server_status['Uptime']),
 463     PMA_localisedDate($start_time)) . "\n";
 464 ?>
 465 </p>
 466
 467 <?php
 468 if ($server_master_status || $server_slave_status) {
 469     echo '<p>';
 470     if ($server_master_status && $server_slave_status) {
 471         echo __('This MySQL server works as <b>master</b> and <b>slave</b> in <b>replication</b> process.');
 472     } elseif ($server_master_status) {
 473         echo __('This MySQL server works as <b>master</b> in <b>replication</b> process.');
 474     } elseif ($server_slave_status) {
 475         echo __('This MySQL server works as <b>slave</b> in <b>replication</b> process.');
 476     }
 477     echo __('For further information about replication status on the server, please visit the <a href=#replication>replication section</a>.');
 478     echo '</p>';
 479 }
 480 ?>
 481
 482 <div id="sectionlinks">
 483 <?php
 484 foreach ($sections as $section_name => $section) {
 485     if (! empty($section['vars']) && ! empty($section['title'])) {
 486         echo '<a href="' . $PMA_PHP_SELF . '?' .
 487              PMA_generate_common_url() . '#' . $section_name . '">' .
 488              $section['title'] . '</a>' . "\n";
 489     }
 490 }
 491 ?>
 492 </div>
 493
 494 <h3><?php echo __('<b>Server traffic</b>: These tables show the network traffic statistics of this MySQL server since its startup.'); ?></h3>
 495
 496 <table id="serverstatustraffic" class="data">
 497 <thead>
 498 <tr>
 499     <th colspan="2"><?php echo __('Traffic') . '&nbsp;' . PMA_showHint(__('On a busy server, the byte counters may overrun, so those statistics as reported by the MySQL server may be incorrect.')); ?></th>
 500     <th>&oslash; <?php echo __('per hour'); ?></th>
 501 </tr>
 502 </thead>
 503 <tbody>
 504 <tr class="odd">
 505     <th class="name"><?php echo __('Received'); ?></th>
 506     <td class="value"><?php echo
 507         implode(' ',
 508             PMA_formatByteDown($server_status['Bytes_received'], 2, 1)); ?></td>
 509     <td class="value"><?php echo
 510         implode(' ',
 511             PMA_formatByteDown(
 512                 $server_status['Bytes_received'] * $hour_factor, 2, 1)); ?></td>
 513 </tr>
 514 <tr class="even">
 515     <th class="name"><?php echo __('Sent'); ?></th>
 516     <td class="value"><?php echo
 517         implode(' ',
 518             PMA_formatByteDown($server_status['Bytes_sent'], 2, 1)); ?></td>
 519     <td class="value"><?php echo
 520         implode(' ',
 521             PMA_formatByteDown(
 522                 $server_status['Bytes_sent'] * $hour_factor, 2, 1)); ?></td>
 523 </tr>
 524 <tr class="odd">
 525     <th class="name"><?php echo __('Total'); ?></th>
 526     <td class="value"><?php echo
 527         implode(' ',
 528             PMA_formatByteDown(
 529                 $server_status['Bytes_received'] + $server_status['Bytes_sent'], 2, 1)
 530         ); ?></td>
 531     <td class="value"><?php echo
 532         implode(' ',
 533             PMA_formatByteDown(
 534                 ($server_status['Bytes_received'] + $server_status['Bytes_sent'])
 535                 * $hour_factor, 2, 1)
 536         ); ?></td>
 537 </tr>
 538 </tbody>
 539 </table>
 540
 541 <table id="serverstatusconnections" class="data">
 542 <thead>
 543 <tr>
 544     <th colspan="2"><?php echo __('Connections'); ?></th>
 545     <th>&oslash; <?php echo __('per hour'); ?></th>
 546     <th>%</th>
 547 </tr>
 548 </thead>
 549 <tbody>
 550 <tr class="odd">
 551     <th class="name"><?php echo __('max. concurrent connections'); ?></th>
 552     <td class="value"><?php echo
 553         PMA_formatNumber($server_status['Max_used_connections'], 0); ?>  </td>
 554     <td class="value">--- </td>
 555     <td class="value">--- </td>
 556 </tr>
 557 <tr class="even">
 558     <th class="name"><?php echo __('Failed attempts'); ?></th>
 559     <td class="value"><?php echo
 560         PMA_formatNumber($server_status['Aborted_connects'], 4, 0); ?></td>
 561     <td class="value"><?php echo
 562         PMA_formatNumber($server_status['Aborted_connects'] * $hour_factor,
 563             4, 2); ?></td>
 564     <td class="value"><?php echo
 565         $server_status['Connections'] > 0
 566       ? PMA_formatNumber(
 567             $server_status['Aborted_connects'] * 100 / $server_status['Connections'],
 568             0, 2) . '%'
 569       : '--- '; ?></td>
 570 </tr>
 571 <tr class="odd">
 572     <th class="name"><?php echo __('Aborted'); ?></th>
 573     <td class="value"><?php echo
 574         PMA_formatNumber($server_status['Aborted_clients'], 4, 0); ?></td>
 575     <td class="value"><?php echo
 576         PMA_formatNumber($server_status['Aborted_clients'] * $hour_factor,
 577             4, 2); ?></td>
 578     <td class="value"><?php echo
 579         $server_status['Connections'] > 0
 580       ? PMA_formatNumber(
 581             $server_status['Aborted_clients'] * 100 / $server_status['Connections'],
 582             0, 2) . '%'
 583       : '--- '; ?></td>
 584 </tr>
 585 <tr class="even">
 586     <th class="name"><?php echo __('Total'); ?></th>
 587     <td class="value"><?php echo
 588         PMA_formatNumber($server_status['Connections'], 4, 0); ?></td>
 589     <td class="value"><?php echo
 590         PMA_formatNumber($server_status['Connections'] * $hour_factor,
 591             4, 2); ?></td>
 592     <td class="value"><?php echo
 593         PMA_formatNumber(100, 0, 2); ?>%</td>
 594 </tr>
 595 </tbody>
 596 </table>
 597
 598 <hr class="clearfloat" />
 599
 600 <h3><?php echo
 601     sprintf(__('<b>Query statistics</b>: Since its startup, %s queries have been sent to the server.'),
 602         PMA_formatNumber($server_status['Questions'], 0)); ?></h3>
 603
 604 <table id="serverstatusqueriessummary" class="data">
 605 <thead>
 606 <tr>
 607     <th><?php echo __('Total'); ?></th>
 608     <th>&oslash; <?php echo __('per hour'); ?></th>
 609     <th>&oslash; <?php echo __('per minute'); ?></th>
 610     <th>&oslash; <?php echo __('per second'); ?></th>
 611 </tr>
 612 </thead>
 613 <tbody>
 614 <tr class="odd">
 615     <td class="value"><?php echo
 616         PMA_formatNumber($server_status['Questions'], 4, 0); ?></td>
 617     <td class="value"><?php echo
 618         PMA_formatNumber($server_status['Questions'] * $hour_factor,
 619             3, 2); ?></td>
 620     <td class="value"><?php echo
 621         PMA_formatNumber(
 622             $server_status['Questions'] * 60 / $server_status['Uptime'],
 623             3, 2); ?></td>
 624     <td class="value"><?php echo
 625         PMA_formatNumber(
 626             $server_status['Questions'] / $server_status['Uptime'],
 627             3, 2); ?></td>
 628 </tr>
 629 </tbody>
 630 </table>
 631
 632 <div id="serverstatusqueriesdetails">
 633 <?php
 634
 635 $used_queries = $sections['com']['vars'];
 636 // reverse sort by value to show most used statements first
 637 arsort($used_queries);
 638 // remove all zero values from the end
 639 while (end($used_queries) == 0) {
 640     array_pop($used_queries);
 641 }
 642
 643 // number of tables to split values into
 644 $tables         = 3;
 645 $max_rows_per_table = (int) ceil(count($used_queries) / $tables);
 646 $current_table  = 0;
 647 $odd_row        = true;
 648 $count_displayed_rows      = 0;
 649 $perc_factor    = 100 / ($server_status['Questions'] - $server_status['Connections']);
 650
 651 foreach ($used_queries as $name => $value) {
 652     $current_table++;
 653     if ($count_displayed_rows === 0 || $count_displayed_rows === $max_rows_per_table) {
 654         $odd_row = true;
 655         if ($count_displayed_rows === $max_rows_per_table) {
 656             echo '    </tbody>' . "\n";
 657             echo '    </table>' . "\n";
 658             $count_displayed_rows = 0;
 659         }
 660 ?>
 661     <table id="serverstatusqueriesdetails<?php echo $current_table; ?>" class="data">
 662     <col class="namecol" />
 663     <col class="valuecol" span="3" />
 664     <thead>
 665         <tr><th colspan="2"><?php echo __('Query type'); ?></th>
 666             <th>&oslash; <?php echo __('per hour'); ?></th>
 667             <th>%</th>
 668         </tr>
 669     </thead>
 670     <tbody>
 671 <?php
 672     } else {
 673         $odd_row = !$odd_row;
 674     }
 675     $count_displayed_rows++;
 676
 677 // For the percentage column, use Questions - Connections, because
 678 // the number of connections is not an item of the Query types
 679 // but is included in Questions. Then the total of the percentages is 100.
 680     $name = str_replace('Com_', '', $name);
 681     $name = str_replace('_', ' ', $name);
 682 ?>
 683         <tr class="<?php echo $odd_row ? 'odd' : 'even'; ?>">
 684             <th class="name"><?php echo htmlspecialchars($name); ?></th>
 685             <td class="value"><?php echo PMA_formatNumber($value, 4, 0); ?></td>
 686             <td class="value"><?php echo
 687                 PMA_formatNumber($value * $hour_factor, 3, 3); ?></td>
 688             <td class="value"><?php echo
 689                 PMA_formatNumber($value * $perc_factor, 0, 2); ?>%</td>
 690         </tr>
 691 <?php
 692 }
 693 ?>
 694     </tbody>
 695     </table>
 696 </div>
 697
 698 <div id="serverstatussection">
 699 <?php
 700 //Unset used variables
 701 unset(
 702     $tables, $max_rows_per_table, $current_table, $count_displayed_rows, $perc_factor,
 703     $hour_factor, $sections['com'],
 704     $server_status['Aborted_clients'], $server_status['Aborted_connects'],
 705     $server_status['Max_used_connections'], $server_status['Bytes_received'],
 706     $server_status['Bytes_sent'], $server_status['Connections'],
 707     $server_status['Questions'], $server_status['Uptime'],
 708     $used_queries
 709 );
 710
 711 foreach ($sections as $section_name => $section) {
 712     if (! empty($section['vars'])) {
 713 ?>
 714     <table class="data" id="serverstatussection<?php echo $section_name; ?>">
 715     <caption class="tblHeaders">
 716         <a class="top"
 717            href="<?php echo $PMA_PHP_SELF . '?' .
 718                  PMA_generate_common_url() . '#serverstatus'; ?>"
 719            name="<?php echo $section_name; ?>"><?php echo __('Begin'); ?>
 720             <?php echo
 721                 ($GLOBALS['cfg']['MainPageIconic']
 722               ? '<img src="' . $GLOBALS['pmaThemeImage'] .
 723                 's_asc.png" width="11" height="9" align="middle" alt="" />'
 724               : ''); ?>
 725         </a>
 726 <?php
 727 if (! empty($section['title'])) {
 728     echo $section['title'];
 729 }
 730 ?>
 731     </caption>
 732     <col class="namecol" />
 733     <col class="valuecol" />
 734     <col class="descrcol" />
 735     <thead>
 736         <tr>
 737             <th><?php echo __('Variable'); ?></th>
 738             <th><?php echo __('Value'); ?></th>
 739             <th><?php echo __('Description'); ?></th>
 740         </tr>
 741     </thead>
 742 <?php
 743         if (! empty($links[$section_name])) {
 744 ?>
 745     <tfoot>
 746         <tr class="tblFooters">
 747             <th colspan="3" class="tblFooters">
 748 <?php
 749             foreach ($links[$section_name] as $link_name => $link_url) {
 750                 if ('doc' == $link_name) {
 751                     echo PMA_showMySQLDocu($link_url, $link_url);
 752                 } else {
 753                     echo '<a href="' . $link_url . '">' . $link_name . '</a>' . "\n";
 754                 }
 755             }
 756             unset($link_url, $link_name);
 757 ?>
 758             </th>
 759         </tr>
 760     </tfoot>
 761 <?php
 762         }
 763 ?>
 764     <tbody>
 765 <?php
 766         $odd_row = false;
 767         foreach ($section['vars'] as $name => $value) {
 768             $odd_row = !$odd_row;
 769 ?>
 770         <tr class="<?php echo $odd_row ? 'odd' : 'even'; ?>">
 771             <th class="name"><?php echo htmlspecialchars($name); ?></th>
 772             <td class="value"><?php
 773             if (isset($alerts[$name])) {
 774                 if ($value > $alerts[$name]) {
 775                     echo '<span class="attention">';
 776                 } else {
 777                     echo '<span class="allfine">';
 778                 }
 779             }
 780             if ('%' === substr($name, -1, 1)) {
 781                 echo PMA_formatNumber($value, 0, 2) . ' %';
 782             } elseif (is_numeric($value) && $value == (int) $value) {
 783                 echo PMA_formatNumber($value, 3, 1);
 784             } elseif (is_numeric($value)) {
 785                 echo PMA_formatNumber($value, 3, 1);
 786             } else {
 787                 echo htmlspecialchars($value);
 788             }
 789             if (isset($alerts[$name])) {
 790                 echo '</span>';
 791             }
 792             ?></td>
 793             <td class="descr">
 794             <?php
 795             if (isset($GLOBALS['strShowStatus' . $name . 'Descr'])) {
 796                 echo $GLOBALS['strShowStatus' . $name . 'Descr'];
 797             }
 798
 799             if (isset($links[$name])) {
 800                 foreach ($links[$name] as $link_name => $link_url) {
 801                     if ('doc' == $link_name) {
 802                         echo PMA_showMySQLDocu($link_url, $link_url);
 803                     } else {
 804                         echo ' <a href="' . $link_url . '">' . $link_name . '</a>' .
 805                         "\n";
 806                     }
 807                 }
 808                 unset($link_url, $link_name);
 809             }
 810             ?>
 811             </td>
 812         </tr>
 813 <?php
 814         }
 815         unset($name, $value);
 816 ?>
 817     </tbody>
 818     </table>
 819 <?php
 820     }
 821 }
 822 unset($section_name, $section, $sections, $server_status, $odd_row, $alerts);
 823 ?>
 824 </div>
 825 <?php
 826 /* if the server works as master or slave in replication process, display useful information */
 827 if ($server_master_status || $server_slave_status)
 828 {
 829 ?>
 830   <hr class="clearfloat" />
 831
 832   <h3><a name="replication"></a><?php echo __('Replication status'); ?></h3>
 833 <?php
 834
 835     foreach ($replication_types as $type)
 836     {
 837         if (${"server_{$type}_status"}) {
 838             PMA_replication_print_status_table($type);
 839         }
 840     }
 841     unset($types);
 842 }
 843 ?>
 844
 845 </div>
 846
 847 <?php
 848 /**
 849  * Sends the footer
 850  */
 851 require_once './libraries/footer.inc.php';
 852 ?>