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