Randomly getting the phpFastCacheIOException

[hriziya]

Configuration

• PhpFastCache version: 6.0.2
• PhpFastCache API version: 1.2.5
• PHP version: PHP 7.0.30-0ubuntu0.16.04.1 (cli) ( NTS )
• Operating system: Ubuntu 16.04

I am using this since more than a year, and getting such permission exception once in a month or so.
It is completely random behavior and has no specific steps to duplicate it. Can anyone help with that?

I have checked the CacheManager class and the default setting is
'default_chmod' => 0777,

here are my doubts

1. Should I use the "autoTmpFallback" = true in settings?
2. If this is write permission issue, then it should trigger exception on every try of writing content to directory. so can anyone help me find the exact issue?

here is the detailed log of the exception message.

Fatal error: Uncaught phpFastCache\Exceptions\phpFastCacheIOException: PLEASE CHMOD /tmp/beta/Auto/Files/73/74 - 511 OR ANY WRITABLE PERMISSION! in /var/www/html/beta/web_services/vendor/phpfastcache/phpfastcache/src/phpFastCache/Core/Pool/IO/IOHelperTrait.php:157

Stack trace:
#0 /var/www/html/beta/web_services/vendor/phpfastcache/phpfastcache/src/phpFastCache/Drivers/Files/Driver.php(72): phpFastCache\Drivers\Files\Driver->getFilePath('all_types')

#1 var/www/html/beta/web_services/vendor/phpfastcache/phpfastcache/src/phpFastCache/Core/Pool/CacheItemPoolTrait.php(353): phpFastCache\Drivers\Files\Driver->driverWrite(Object(phpFastCache\Drivers\Files\Item))

#2 /var/www/html/beta/web_services/vendor/phpfastcache/phpfastcache/src/phpFastCache/Helper/Psr16Adapter.php(84): phpFastCache\Drivers\Files\Driver->save(Object(phpFastCache\Drivers\Files\Item))

#3 /var/www/html/beta/web_services/_HELPER.php(1257): phpFastCache\Helper\Psr16Adapter->set('all_types', Array, 1200)

#4 /var/www/html/beta/web_services/service.php(417): HELPER in /var/www/html/beta/web_services/vendor/phpfastcache/phpfastcache/src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 157

[Geolim4]

Hello,

I don't know what to say, tests are all green as you can see:
https://travis-ci.org/PHPSocialNetwork/phpfastcache

I may have a clue, but I need to see your cache code context :)
If it's sensitive, send me the sample at contact-at-geolim4.com

Thanks

[Geolim4]

As I have no possibility to create a test for that, I'm going to push a preventive fix that should logically fix your issue.

Here's my clue:
https://github.com/kalessil/phpinspectionsea/blob/master/docs/probable-bugs.md#mkdir-race-condition

[Geolim4]

Fix will be available in the next release (around next week).

[hriziya]

Thank you so much!

[Geolim4]

Since the v6 had no new release since march, I'm gonna release one immediately.
The v7 will wait a bit more thought.

[Geolim4]

Here you go:
https://github.com/PHPSocialNetwork/phpfastcache/releases/tag/6.1.3