I try to run PHPUnit Tests in my new machine and I get this error:
PHP Fatal error: Uncaught exception 'UnexpectedValueException' with message 'RecursiveDirectoryIterator::__construct(/usr/lib/php/pear/File/Iterator): failed to open dir: Too many open files' in /usr/lib/php/pear/File/Iterator/Factory.php:114
The same code on the old machine run well...
New machine environment: PHP Version: PHP 5.3.21 (cli) Older: PHP 5.3.14
PHPUnit output every time:
................EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 65 / 66 ( 98%) E Time: 34 seconds, Memory: 438.50Mb There were 50 errors: 1) XXXXXXXXXXX PHP Fatal error: Uncaught exception 'UnexpectedValueException' with message 'RecursiveDirectoryIterator::__construct(/usr/lib/php/pear/File/Iterator): failed to open dir: Too many open files' in /usr/lib/php/pear/File/Iterator/Factory.php:114
In Linux, you can change the maximum amount of open files. You may modify this number by using the ulimit command. It grants you the ability to control the resources available for the shell or process started by it.
This can be a limitation on the server where the code is running. Every operating system only allows for a certain number of open files/handles/sockets. This limit is usually further reduced when the server is virtualized. On a Linux server you can check the current limit with ulimit -n
, if you have root access you can increase it with the same command. I assume there is a method for Windows server as well. Otherwise there is not much you can do about it (except ask your hoster or administrator to increase it).
More configurable limits:
Change in /etc/security/limits.conf
soft nofile 1024 hard nofile 65535
Increase ulimit by ulimit -n 65535
or echo 65535 > /proc/sys/fs/file-max
or in /etc/sysctl.conf
:
fs.file-max=65535
How can you up file open limit (Linux or Max OS):
ulimit -n 10000
Solves problem with phpunit
or/and phpdbg
and Warning: Uncaught ErrorException: require([..file]): failed to open stream: Too many open files in [...]
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