Bug #51909 [NEW]: mysqli hangs after small request storms.

From: Operating system: Debian GNU/Linux PHP version: Irrelevant Package: MySQLi related Bug Type: Bug Bug description:mysqli hangs after small request storms. Description: ------------ The problem is that MySQLi completely hangs after a small storm of requests. I have prepared a sample script (attached into bug report) with SQL script used to create and populate table (see http://gist.github.com/413635). I also used dummy http client written in ruby to storm it with requests. After ~ 130 requests proceded one after another MySQLi completely hangs out and stops working until Apache2 is restarted. I was tested same storming with pdo_mysql and it was working like a charm (more than 1024 continiously repeated requests). This bug was found upon discussing strange problem in zend Framework mailing list. Please refer to discussion for more details: http://zend-framework- community.634137.n4.nabble.com/Saving-many-Zend-Db-Table-Rows-in-for-loop- td2220281.html Test script: --------------- <?php $host = 'localhost'; $user = 'user'; $pass = 'pass'; $name = 'test'; header('Content-Type: text/plain'); $mysqli = mysqli_connect($host, $user, $pass, $name); if ($result = $mysqli->query('SELECT * FROM my_table')) { while ($obj = $result->fetch_object()) { echo $obj->id . ' - ' . $obj->title . PHP_EOL; } mysqli_free_result($result); $result->close(); } $mysqli->close(); -- Edit bug report at http://bugs.php.net/bug.php?id=51909&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51909&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51909&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51909&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=51909&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51909&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=51909&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=51909&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=51909&r=needscript Try newer version: http://bugs.php.net/fix.php?id=51909&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=51909&r=support Expected behavior: http://bugs.php.net/fix.php?id=51909&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=51909&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=51909&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=51909&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51909&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=51909&r=dst IIS Stability: http://bugs.php.net/fix.php?id=51909&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=51909&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=51909&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=51909&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=51909&r=mysqlcfg