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|
--TEST--
Persistent connections and mysqli.max_links
--SKIPIF--
<?php
require_once('skipif.inc');
require_once('skipifemb.inc');
require_once('skipifconnectfailure.inc');
require_once('connect.inc');
if (!$IS_MYSQLND)
die("skip mysqlnd only test");
// we need a second DB user to test for a possible flaw in the ext/mysql[i] code
if (!$link = mysqli_connect($host, $user, $passwd, $db, $port, $socket))
die(sprintf("skip Cannot connect [%d] %s", mysqli_connect_errno(), mysqli_connect_error()));
mysqli_query($link, 'DROP USER pcontest');
if (!mysqli_query($link, 'CREATE USER pcontest IDENTIFIED BY "pcontest"')) {
printf("skip Cannot create second DB user [%d] %s", mysqli_errno($link), mysqli_error($link));
mysqli_close($link);
die();
}
// we might be able to specify the host using CURRENT_USER(), but...
if (!mysqli_query($link, sprintf("GRANT SELECT ON TABLE %s.test TO pcontest@'%%'", $db))) {
printf("skip Cannot GRANT SELECT to second DB user [%d] %s", mysqli_errno($link), mysqli_error($link));
mysqli_query($link, 'REVOKE ALL PRIVILEGES, GRANT OPTION FROM pcontest');
mysqli_query($link, 'DROP USER pcontest');
mysqli_close($link);
die();
}
mysqli_close($link);
?>
--INI--
mysqli.allow_persistent=1
mysqli.max_persistent=2
--FILE--
<?php
require_once("connect.inc");
require_once('table.inc');
if (!$plink = mysqli_connect('p:' . $host, 'pcontest', 'pcontest', $db, $port, $socket))
printf("[001] Cannot connect using the second DB user created during SKIPIF, [%d] %s\n",
mysqli_connect_errno(), mysqli_connect_error());
ob_start();
phpinfo();
$phpinfo = strip_tags(ob_get_contents());
ob_end_clean();
$phpinfo = substr($phpinfo, strpos($phpinfo, 'MysqlI Support => enabled'), 500);
if (!preg_match('@Active Persistent Links\s+=>\s+(\d+)@ismU', $phpinfo, $matches))
printf("[002] Cannot get # active persistent links from phpinfo()\n");
$num_plinks = $matches[1];
if (!$res = mysqli_query($plink, 'SELECT id, label FROM test WHERE id = 1'))
printf("[003] Cannot run query on persistent connection of second DB user, [%d] %s\n",
mysqli_errno($plink), mysqli_error($plink));
if (!$row = mysqli_fetch_assoc($res))
printf("[004] Cannot run fetch result, [%d] %s\n",
mysqli_errno($plink), mysqli_error($plink));
mysqli_free_result($res);
var_dump($row);
// change the password for the second DB user and kill the persistent connection
if (!mysqli_query($link, 'SET PASSWORD FOR pcontest = PASSWORD("newpass")') ||
!mysqli_query($link, 'FLUSH PRIVILEGES'))
printf("[005] Cannot change PW of second DB user, [%d] %s\n", mysqli_errno($link), mysqli_error($link));
// persistent connections cannot be closed but only be killed
$pthread_id = mysqli_thread_id($plink);
if (!mysqli_query($link, sprintf('KILL %d', $pthread_id)))
printf("[006] Cannot KILL persistent connection of second DB user, [%d] %s\n", mysqli_errno($link), mysqli_error($link));
// give the server a second to really kill the thread
sleep(1);
if (!$res = mysqli_query($link, "SHOW FULL PROCESSLIST"))
printf("[007] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
$running_threads = array();
while ($row = mysqli_fetch_assoc($res))
$running_threads[$row['Id']] = $row;
mysqli_free_result($res);
if (isset($running_threads[$pthread_id]))
printf("[008] Persistent connection has not been killed\n");
// this fails and we have 0 (<= $num_plinks) connections
if ($plink = @mysqli_connect('p:' . $host, 'pcontest', 'pcontest', $db, $port, $socket))
printf("[009] Can connect using the old password, [%d] %s\n",
mysqli_connect_errno($link), mysqli_connect_error($link));
ob_start();
phpinfo();
$phpinfo = strip_tags(ob_get_contents());
ob_end_clean();
$phpinfo = substr($phpinfo, stripos($phpinfo, 'MysqlI Support => enabled'), 500);
if (!preg_match('@Active Persistent Links\s+=>\s+(\d+)@ismU', $phpinfo, $matches))
printf("[010] Cannot get # of active persistent links from phpinfo()\n");
$num_plinks_kill = $matches[1];
if ($num_plinks_kill > $num_plinks)
printf("[011] Expecting Active Persistent Links < %d, got %d\n", $num_plinks, $num_plinks_kill);
if (!$plink = mysqli_connect('p:' . $host, 'pcontest', 'newpass', $db, $port, $socket))
printf("[012] Cannot connect using the new password, [%d] %s\n",
mysqli_connect_errno(), mysqli_connect_error());
if (!$res = mysqli_query($plink, 'SELECT id, label FROM test WHERE id = 1'))
printf("[013] Cannot run query on persistent connection of second DB user, [%d] %s\n",
mysqli_errno($plink), mysqli_error($plink));
if (!$row = mysqli_fetch_assoc($res))
printf("[014] Cannot run fetch result, [%d] %s\n",
mysqli_errno($plink), mysqli_error($plink));
mysqli_free_result($res);
var_dump($row);
if ($plink2 = mysqli_connect('p:' . $host, 'pcontest', 'newpass', $db, $port, $socket))
printf("[015] Can open more persistent connections than allowed, [%d] %s\n",
mysqli_connect_errno(), mysqli_connect_error());
ob_start();
phpinfo();
$phpinfo = strip_tags(ob_get_contents());
ob_end_clean();
$phpinfo = substr($phpinfo, stripos($phpinfo, 'MysqlI Support => enabled'), 500);
if (!preg_match('@Active Persistent Links\s+=>\s+(\d+)@ismU', $phpinfo, $matches))
printf("[016] Cannot get # of active persistent links from phpinfo()\n");
$num_plinks = $matches[1];
if ($num_plinks > (int)ini_get('mysqli.max_persistent'))
printf("[017] mysqli.max_persistent=%d allows %d open connections!\n", ini_get('mysqli.max_persistent'),$num_plinks);
mysqli_query($link, 'REVOKE ALL PRIVILEGES, GRANT OPTION FROM pcontest');
mysqli_query($link, 'DROP USER pcontest');
mysqli_close($link);
print "done!";
?>
--EXPECTF--
array(2) {
["id"]=>
string(1) "1"
["label"]=>
string(1) "a"
}
array(2) {
["id"]=>
string(1) "1"
["label"]=>
string(1) "a"
}
Warning: mysqli_connect(): Too many open persistent links (%d) in %s on line %d
done!
--UEXPECTF--
array(2) {
[u"id"]=>
unicode(1) "1"
[u"label"]=>
unicode(1) "a"
}
array(2) {
[u"id"]=>
unicode(1) "1"
[u"label"]=>
unicode(1) "a"
}
Warning: mysqli_connect(): Too many open persistent links (%d) in %s on line %d
done!
|
