diff options
author | xmujay <xmujay@gmail.com> | 2013-06-25 18:55:38 +0400 |
---|---|---|
committer | xmujay <xmujay@gmail.com> | 2013-06-25 18:55:38 +0400 |
commit | 5e1b7a7eb314fa0e4bf7e4350bd61250ec6a2769 (patch) | |
tree | 9106c3f34c2617cc8a93ee99e314ec1ea775939b /server_status_variables.php | |
parent | ef1aacce489232a3932a6f6c9304a4f0a2ccffc4 (diff) |
refactor server_status_variables.php
Diffstat (limited to 'server_status_variables.php')
-rw-r--r-- | server_status_variables.php | 720 |
1 files changed, 5 insertions, 715 deletions
diff --git a/server_status_variables.php b/server_status_variables.php index f96088c5a3..6f83e02b20 100644 --- a/server_status_variables.php +++ b/server_status_variables.php @@ -9,6 +9,8 @@ require_once 'libraries/common.inc.php'; require_once 'libraries/server_common.inc.php'; require_once 'libraries/ServerStatusData.class.php'; +require_once 'libraries/server_status_variables.lib.php'; + if (PMA_DRIZZLE) { $server_master_status = false; $server_slave_status = false; @@ -44,723 +46,11 @@ $scripts->addFile('server_status_sorter.js'); $response->addHTML('<div>'); $response->addHTML($ServerStatusData->getMenuHtml()); -$response->addHTML(PMA_getFilterHtml($ServerStatusData)); -$response->addHTML(PMA_getLinkSuggestionsHtml($ServerStatusData)); -$response->addHTML(PMA_getVariablesTableHtml($ServerStatusData)); +$response->addHTML(PMA_getHtmlForFilter($ServerStatusData)); +$response->addHTML(PMA_getHtmlForLinkSuggestions($ServerStatusData)); +$response->addHTML(PMA_getHtmlForVariablesTable($ServerStatusData)); $response->addHTML('</div>'); exit; -/** - * Returns the html for the list filter - * - * @param Object $ServerStatusData An instance of the PMA_ServerStatusData class - * - * @return string - */ -function PMA_getFilterHtml($ServerStatusData) -{ - $filterAlert = ''; - if (! empty($_REQUEST['filterAlert'])) { - $filterAlert = ' checked="checked"'; - } - $filterText = ''; - if (! empty($_REQUEST['filterText'])) { - $filterText = htmlspecialchars($_REQUEST['filterText']); - } - $dontFormat = ''; - if (! empty($_REQUEST['dontFormat'])) { - $dontFormat = ' checked="checked"'; - } - - $retval = ''; - $retval .= '<fieldset id="tableFilter">'; - $retval .= '<legend>' . __('Filters') . '</legend>'; - $retval .= '<form action="server_status_variables.php?' . PMA_generate_common_url() . '">'; - $retval .= '<input type="submit" value="' . __('Refresh') . '" />'; - $retval .= '<div class="formelement">'; - $retval .= '<label for="filterText">' . __('Containing the word:') . '</label>'; - $retval .= '<input name="filterText" type="text" id="filterText" ' - . 'style="vertical-align: baseline;" value="' . $filterText . '" />'; - $retval .= '</div>'; - $retval .= '<div class="formelement">'; - $retval .= '<input' . $filterAlert . ' type="checkbox" name="filterAlert" id="filterAlert" />'; - $retval .= '<label for="filterAlert">'; - $retval .= __('Show only alert values'); - $retval .= '</label>'; - $retval .= '</div>'; - $retval .= '<div class="formelement">'; - $retval .= '<select id="filterCategory" name="filterCategory">'; - $retval .= '<option value="">' . __('Filter by category…') . '</option>'; - - foreach ($ServerStatusData->sections as $section_id => $section_name) { - if (isset($ServerStatusData->categoryUsed[$section_id])) { - if (! empty($_REQUEST['filterCategory']) - && $_REQUEST['filterCategory'] == $section_id - ) { - $selected = ' selected="selected"'; - } else { - $selected = ''; - } - $retval .= '<option' . $selected . ' value="' . $section_id. '">'; - $retval .= htmlspecialchars($section_name) . '</option>'; - } - } - $retval .= '</select>'; - $retval .= '</div>'; - $retval .= '<div class="formelement">'; - $retval .= '<input' . $dontFormat . ' type="checkbox" name="dontFormat" id="dontFormat" />'; - $retval .= '<label for="dontFormat">'; - $retval .= __('Show unformatted values'); - $retval .= '</label>'; - $retval .= '</div>'; - $retval .= '</form>'; - $retval .= '</fieldset>'; - - return $retval; -} - -/** - * Prints the suggestion links - * - * @param Object $ServerStatusData An instance of the PMA_ServerStatusData class - * - * @return string - */ -function PMA_getLinkSuggestionsHtml($ServerStatusData) -{ - $retval = '<div id="linkSuggestions" class="defaultLinks" style="display:none">'; - $retval .= '<p class="notice">' . __('Related links:'); - foreach ($ServerStatusData->links as $section_name => $section_links) { - $retval .= '<span class="status_' . $section_name . '"> '; - $i=0; - foreach ($section_links as $link_name => $link_url) { - if ($i > 0) { - $retval .= ', '; - } - if ('doc' == $link_name) { - $retval .= PMA_Util::showMySQLDocu($link_url, $link_url); - } else { - $retval .= '<a href="' . $link_url . '">' . $link_name . '</a>'; - } - $i++; - } - $retval .= '</span>'; - } - unset($link_url, $link_name, $i); - $retval .= '</p>'; - $retval .= '</div>'; - - return $retval; -} - -/** - * Returns a table with variables information - * - * @param Object $ServerStatusData An instance of the PMA_ServerStatusData class - * - * @return string - */ -function PMA_getVariablesTableHtml($ServerStatusData) -{ - $retval = ''; - $strShowStatus = PMA_getStatusVariablesDescriptions(); - /** - * define some alerts - */ - // name => max value before alert - $alerts = array( - // lower is better - // variable => max value - 'Aborted_clients' => 0, - 'Aborted_connects' => 0, - - 'Binlog_cache_disk_use' => 0, - - 'Created_tmp_disk_tables' => 0, - - 'Handler_read_rnd' => 0, - 'Handler_read_rnd_next' => 0, - - 'Innodb_buffer_pool_pages_dirty' => 0, - 'Innodb_buffer_pool_reads' => 0, - 'Innodb_buffer_pool_wait_free' => 0, - 'Innodb_log_waits' => 0, - 'Innodb_row_lock_time_avg' => 10, // ms - 'Innodb_row_lock_time_max' => 50, // ms - 'Innodb_row_lock_waits' => 0, - - 'Slow_queries' => 0, - 'Delayed_errors' => 0, - 'Select_full_join' => 0, - 'Select_range_check' => 0, - 'Sort_merge_passes' => 0, - 'Opened_tables' => 0, - 'Table_locks_waited' => 0, - 'Qcache_lowmem_prunes' => 0, - - 'Qcache_free_blocks' => isset($ServerStatusData->server_status['Qcache_total_blocks']) - ? $ServerStatusData->server_status['Qcache_total_blocks'] / 5 : 0, - 'Slow_launch_threads' => 0, - - // depends on Key_read_requests - // normaly lower then 1:0.01 - 'Key_reads' => isset($ServerStatusData->status['Key_read_requests']) - ? (0.01 * $ServerStatusData->status['Key_read_requests']) : 0, - // depends on Key_write_requests - // normaly nearly 1:1 - 'Key_writes' => isset($ServerStatusData->status['Key_write_requests']) - ? (0.9 * $ServerStatusData->status['Key_write_requests']) : 0, - - 'Key_buffer_fraction' => 0.5, - - // alert if more than 95% of thread cache is in use - 'Threads_cached' => isset($ServerStatusData->variables['thread_cache_size']) - ? 0.95 * $ServerStatusData->variables['thread_cache_size'] : 0 - - // higher is better - // variable => min value - //'Handler read key' => '> ', - ); - - $retval .= '<table class="data sortable noclick" id="serverstatusvariables">'; - $retval .= '<col class="namecol" />'; - $retval .= '<col class="valuecol" />'; - $retval .= '<col class="descrcol" />'; - $retval .= '<thead>'; - $retval .= '<tr>'; - $retval .= '<th>' . __('Variable') . '</th>'; - $retval .= '<th>' . __('Value') . '</th>'; - $retval .= '<th>' . __('Description') . '</th>'; - $retval .= '</tr>'; - $retval .= '</thead>'; - $retval .= '<tbody>'; - - $odd_row = false; - foreach ($ServerStatusData->status as $name => $value) { - $odd_row = !$odd_row; - $retval .= '<tr class="' . ($odd_row ? 'odd' : 'even') - . (isset($ServerStatusData->allocationMap[$name])?' s_' . $ServerStatusData->allocationMap[$name] : '') - . '">'; - - $retval .= '<th class="name">'; - $retval .= htmlspecialchars(str_replace('_', ' ', $name)); - /* Fields containing % are calculated, they can not be described in MySQL documentation */ - if (strpos($name, '%') === false) { - $retval .= PMA_Util::showMySQLDocu( - 'server-status-variables', - 'server-status-variables', - false, - 'statvar_' . $name - ); - } - $retval .= '</th>'; - - $retval .= '<td class="value"><span class="formatted">'; - if (isset($alerts[$name])) { - if ($value > $alerts[$name]) { - $retval .= '<span class="attention">'; - } else { - $retval .= '<span class="allfine">'; - } - } - if ('%' === substr($name, -1, 1)) { - $retval .= htmlspecialchars(PMA_Util::formatNumber($value, 0, 2)) . ' %'; - } elseif (strpos($name, 'Uptime') !== false) { - $retval .= htmlspecialchars( - PMA_Util::timespanFormat($value) - ); - } elseif (is_numeric($value) && $value > 1000) { - $retval .= '<abbr title="' - // makes available the raw value as a title - . htmlspecialchars(PMA_Util::formatNumber($value, 0)) - . '">' - . htmlspecialchars(PMA_Util::formatNumber($value, 3, 1)) - . '</abbr>'; - } elseif (is_numeric($value)) { - $retval .= htmlspecialchars(PMA_Util::formatNumber($value, 3, 1)); - } else { - $retval .= htmlspecialchars($value); - } - if (isset($alerts[$name])) { - $retval .= '</span>'; - } - $retval .= '</span>'; - $retval .= '<span style="display:none;" class="original">'; - $retval .= $value; - $retval .= '</span>'; - $retval .= '</td>'; - $retval .= '<td class="descr">'; - - if (isset($strShowStatus[$name])) { - $retval .= $strShowStatus[$name]; - } - - if (isset($ServerStatusData->links[$name])) { - foreach ($ServerStatusData->links[$name] as $link_name => $link_url) { - if ('doc' == $link_name) { - $retval .= PMA_Util::showMySQLDocu($link_url, $link_url); - } else { - $retval .= ' <a href="' . $link_url . '">' . $link_name . '</a>'; - } - } - unset($link_url, $link_name); - } - $retval .= '</td>'; - $retval .= '</tr>'; - } - $retval .= '</tbody>'; - $retval .= '</table>'; - - return $retval; -} - -/** - * Returns a list of variable descriptions - * - * @return array - */ -function PMA_getStatusVariablesDescriptions() -{ - /** - * Messages are built using the message name - */ - return array( - '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.' - ) - ); -} - ?> |