/cache/class_index.php is not writable, please give write permissions (chmod 666) on this file.

[MrConstantine]

i have this msg when someone join on my website?? what t do??i change permission to this file,but i have the same msg too

[prestashopninja]

If you want, you can take a copy of the file and then delete it. PS will regenerate it and the problem should be solved.

[haunter]

I get this error in Performance tab only... when I deleted it, everything stop working (frontend too) and show this error, so i uploaded it again and same error, only in Performance tab again :-D

 

SOLVED: 777 permissions recursively on all cache directory

Edited January 20, 2014 by haunter (see edit history)

[BigfootSRL]

I have the same issue, but when i try to delete the file or update the attribute to 666 the system reset it to 664 some second later

 

/cache/class_index.php is not writable, please give write permissions (chmod 666) on this file

 

The error is really annoing when you need to update a great amount of item

[BigfootSRL]

From the log of my host i find a lot of line like this

 

[Fri Feb 14 16:31:54 2014] [error] [client 66.249.64.3:37224] - www.big-foot.it - AH01215: [Fri Feb 14 16:31:54 2014] [warn-phpd] mmap cache can't open /web/htdocs/www.big-foot.it/home/cache/class_index.php - Stale file handle (pid 6562), referer http://www.big-foot.it/it/tattici/3-mav1.html

[prestashopninja]

Hi,

 

You need to inform your hosting provider about the issue.

[BigfootSRL]

Is something they can fix ??

What about the regeneration of the class_index.php? It is also a Hosting issue?

[prestashopninja]

This is something only they can fix unless you have another code changing the permissions tied to cron or triggered in another manner.

If Prestashop cannot write to class_index.php file because the system resets permissions, it cannot regenate it either.

Edited February 14, 2014 by prestashopninja (see edit history)

[BigfootSRL]

Thanks a lot for your help.

I was looking trough several post from weeks without any practical solution.

I keep you updated on this issue.

[BigfootSRL]

My hosting seems to go in the wrong direction to resolve my issue. 

They say all the files that use php need to be set il CHMOD 755.

I have made some test and seems to be some istruction in the prestashop code that reset the CHMOD of the file to 664 when you open a page on the site.

 

Do you know if there is some istruction (and where it is) that rewrite the class_index.php in cache folder?

[prestashopninja]

The file is created in Autoload::generateIndex() method. (classes/Autoload.php) and it seems that it tries to set the perms to 666 there. Please give it a try with 755. 

Normally you should use an override, but in a case where you deal with the very file determining which classes are overriden, it's better to work on Autoload.php file directly. Anyway, please do not forget to take a backup first.

Edited February 17, 2014 by prestashopninja (see edit history)

[BigfootSRL]

Ok, i have found the function where the CHMOD is setted and in this function have found

 

@chmod($filename, 0664);

 

I have put it in 666 and now the file class_index.php is created in 666 (and apparently the site is working good)

My question now is: if this file need to be in 666 why the code create it in 664??

 

I try to put under stress the site to see if the error is still shown. I'll keep you updated

Here the modified function 

 

 

public function generateIndex()

{

$classes = array_merge(

$this->getClassesFromDir('classes/'),

$this->getClassesFromDir('override/classes/'),

$this->getClassesFromDir('controllers/'),

$this->getClassesFromDir('override/controllers/')

);

ksort($classes);

$content = '<?php return '.var_export($classes, true).'; ?>';

 

// Write classes index on disc to cache it

$filename = $this->root_dir.Autoload::INDEX_FILE;

if ((file_exists($filename) && !is_writable($filename)) || !is_writable(dirname($filename)))

{

header('HTTP/1.1 503 temporarily overloaded');

// Cannot use PrestaShopException in this context

die('/cache/class_index.php is not writable, please give write permissions (chmod 666) on this file.');

}

else

{

$filename_tmp = tempnam(dirname($filename), basename($filename.'.'));

if($filename_tmp !== FALSE and file_put_contents($filename_tmp, $content, LOCK_EX) !== FALSE)

            {

rename($filename_tmp, $filename);

                @chmod($filename, 0666);

}

            else

            {

// $filename_tmp couldn't be written. $filename should be there anyway (even if outdated),

// no need to die.

error_log('Cannot write temporary file '.$filename_tmp);

}

}

 

$this->index = $classes;

}

[prestashopninja]

In my Prestashop version (1.5.6.2) it is already 666.

[BigfootSRL]

At the moment i am at the 1.5.6.1

I am waiting the 1.6 to be released to update all the site.

 

If the error doesn't correct with this modify i update at the latest release to see if it resolve.

Thanks for your help and your time