… be prepare statements or cursors which were forgotten to be closed. Watch Com_stmt_prepare and Com_stmt_close to see if you’re closing all prepared statements. In newer versions you can also use prepared_stmt_count variable…
Post: Ultimate MySQL variable and status reference list
January 8, 2011 By 4 Comments
…Com_slave_stopblogpercona.commanual Com_stmt_closeblogpercona.commanual Com_stmt_executeblogpercona.commanual Com_stmt_fetchblogpercona.commanual Com_stmt_prepareblogpercona.commanual Com_stmt_reprepareblogpercona.commanual Com_stmt_resetblogpercona.commanual Com_stmt…
Comment: MySQL Server Memory Usage
September 1, 2006 By 21 Comments
…’ ‘Com_show_variables’, ’176825′ ‘Com_show_warnings’, ’8′ ‘Com_slave_start’, ’0′ ‘Com_slave_stop’, ’0′ ‘Com_stmt_close’, ’304204263′ ‘Com_stmt_execute’, ’304205150′ ‘Com_stmt_prepare‘, ’410680831′ ‘Com_stmt_reset’, ’0′ ‘Com_stmt_send_long_data’, ’0′ ‘Com_truncate’, ’0′ ‘Com_unlock_tables’, ’102′ ‘Com_update’, ’15146253′ ‘Com_update…
Post: Troubleshooting MySQL Memory Usage
March 21, 2012 By 5 Comments
… Related Allocations Another set of buffers correspond to connections – orphaned prepared statements, user variables, huge network buffer (can grow up to…. For prepared statements you might want to look at Prepared_stmt_count to see how many prepared statements are allocated on server and Com_stmt_send_long_data to see whenever sending long data feature is used as it can increase amount of resources prepared…
Post: SQL Injection Questions Followup
July 26, 2012 By 2 Comments
…), “?”)); $sql = “SELECT * FROM Bugs WHERE bug_id IN ($placeholders)”; $stmt = $pdo->prepare($sql); $stmt->execute($params); Radu M. asked: Q: What about INSERT… input data string, followed by invalid SQL syntax: http://example.com/page.php?param=string’ TEST TEST TEST Hopefully, you have…
Post: Implications of Metadata Locking Changes in MySQL 5.5
February 1, 2013 By 9 Comments
…: table id 17 flags: STMT_END_F BINLOG ‘ L5cLURMBAAAALwAAAAUDAAAAABEAAAAAAAEABHRlc3QABHRlc3QAAwMD/gL+CQY= ….000014 | | optimizing | 0.000002 | | statistics | 0.000005 | | preparing | 0.000006 | | executing | 0.000001 | | Sorting result … bug: http://bugs.mysql.com/bug.php?id=67647…
