Too many open files

php-fpmsmfsolaris

In php-fpm.conf I have:

rlimit_files = 8192

My server is a 1G SmartMachine from Joyent, meaning it is a Solaris with 1GB memory.

My problem is that on high load I get errors like this:

Warning (2): touch() [function.touch]: Unable to create file app/tmp/cache/persistent/cake_core_users_da because Too many open files in [cake/libs/file.php, line 125]

Is my rlimit_files too low, and if so how high should I set it?

Best Answer

Are you sure it's actually working? You can use "pfiles" on the process ID to see what it actually has open. You can also run "prctl" on the process ID and look for the "process.max-file-descriptor" value. There will be a basic, privileged, and system value listed. The limit on the process is the lowest of those. It could be a file descriptor leak bug in the application if it really has that many open.

Related Solutions

Php – Apache Crashes Every Night Due To “Too Many Open Files”

You did not mention how many connections you have as a maximum when you start getting these errors.

You can use tools/commands like:

ps -ef | grep apache | wc -l

lsof -p <apache pid>

netstat -anp | grep 80 | grep -i ESTABLISHED | wc -l

The first command tells you how many apache process on your system. The second command tells you how many opened files/connections apache process has. Of course, you need to replace with the real value. The third command tells you how many established connection you have.

Nginx/PHP-FPM Bottleneck – Finding Cause of 502 Gateway Errors

Official recommendation: worker_processes = number of cores CPU

set worker_processes 16;

Best Answer

Related Solutions

Php – Apache Crashes Every Night Due To “Too Many Open Files”

Nginx/PHP-FPM Bottleneck – Finding Cause of 502 Gateway Errors

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