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* PHP: automatic set size shared memory available to PHP APC(u) extension to 128MB, if installed and less then 64MB

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Ralf Becker 2014-11-10 09:52:25 +00:00
parent 418dc8c45b
commit e68c0857de
1 changed files with 66 additions and 0 deletions
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66
doc/rpm-build/post_install.php
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@ -258,6 +258,9 @@ foreach(array('php','source_dir','data_dir','setup-cli') as $name)
if (!file_exists($config[$name])) bail_out(1,$config[$name].' not found!');
}
// fix important php.ini and conf.d/*.ini settings
check_fix_php_apc_ini();
// install/upgrade required pear packages
check_install_pear_packages();
@ -834,3 +837,66 @@ function _ucr_secret($name)
}
return trim(file_get_contents($filename));
}
/**
* Check and evtl. fix APC(u) shared memory size (apc.shm_segments * apc.shm_size) >= 64M
*
* We check for < 64M to allow to use that for small installs manually, but set 128M by default.
*/
function check_fix_php_apc_ini()
{
if (extension_loaded('apc'))
{
$shm_size = ini_get('apc.shm_size');
$shm_segments = ini_get('apc.shm_segments');
// ancent APC (3.1.3) in Debian 6/Squezze has size in MB without a unit
if (($numeric_size = is_numeric($shm_size) && $shm_size <= 1048576)) $shm_size .= 'M';
$size = _size_with_unit($shm_size) * $shm_segments;
//echo "shm_size=$shm_size, shm_segments=$shm_segments --> $size, numeric_size=$numeric_size\n";
// check if we have less then 64MB (eg. default 32M) --> set it to 128MB
if ($size < _size_with_unit('64M'))
{
ob_start();
phpinfo();
$phpinfo = ob_get_clean();
$matches = null;
if (preg_match('#(/[a-z0-5./]+apcu?.ini)(,| |$)#mi', $phpinfo, $matches) &&
file_exists($path = $matches[1]) && ($apc_ini = file_get_contents($path)))
{
$new_shm_size = 128 / $shm_segments;
$new_shm_size .= 'M';
if ($numeric_size) $new_shm_size = _size_with_unit ($new_shm_size);
if (preg_match('|^apc.shm_size\s*=\s*(\d+[KMG]?)$|m', $apc_ini))
{
file_put_contents($path, preg_replace('|^apc.shm_size\s*=\s*(\d+[KMG]?)$|m', 'apc.shm_size='.$new_shm_size, $apc_ini));
}
else
{
file_put_contents($path, $apc_ini."\napc.shm_size=$new_shm_size\n");
}
echo "Fix APC(u) configuration, set apc.shm_size=$new_shm_size in $path\n";
}
}
}
}
/**
* Convert a size with unit eg. 32M to a number
* @param int $size
* @return int
*/
function _size_with_unit($size)
{
switch(strtoupper(substr($size, -1)))
{
case 'G':
$size *= 1024;
case 'M':
$size *= 1024;
case 'K':
$size *= 1024;
}
return $size;
}