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From Marat Khalili <...@rqc.ru>
Subject Re: [users@httpd] Apache keeping open deleted files
Date Mon, 18 Apr 2016 06:54:59 GMT
Hello David,

It is a normal practice in Linux to delete temporary files immediately 
after creating them. These files will still work for the process that 
keeps them open, and will automatically disappear as soon as the process 
ends.

I typed lsof /run/lock on a couple of my Ubuntu machines with Apache 
installed, and the output was similar to yours.

--

With Best Regards,
Marat Khalili

On 18/04/16 08:25, David Cunningham wrote:
> Hi,
>
> While reviewing filesystem usage we noticed lots of deleted files 
> still open by Apache, as reported by lsof. Some example lines are below.
>
> Can anyone advise why Apache is keeping these files open, and if 
> there's anything we can do about it? I have verified that the process 
> numbers listed are still existing processes.
>
> The server is running Apache 2.4.7-1ubuntu4.8 on Ubuntu 14.04 server, 
> 64bit. Thank you in advance.
>
> /usr/sbin 13262             root   23w REG               
> 0,19           0  110619773 /run/lock/apache2/rewrite-map.13262 (deleted)
> /usr/sbin 13262             root   24w REG               
> 0,19           0  105844737 /run/lock/apache2/ssl-cache.13261 (deleted)
> /usr/sbin 22669         apacheuser   23w REG               
> 0,19           0  110619773 /run/lock/apache2/rewrite-map.13262 (deleted)
> /usr/sbin 22669         apacheuser   24w REG               
> 0,19           0  105844737 /run/lock/apache2/ssl-cache.13261 (deleted)
> /usr/sbin 22669 22671   apacheuser   23w REG               
> 0,19           0  110619773 /run/lock/apache2/rewrite-map.13262 (deleted)
> /usr/sbin 22669 22671   apacheuser   24w REG               
> 0,19           0  105844737 /run/lock/apache2/ssl-cache.13261 (deleted)
> /usr/sbin 22669 22672   apacheuser   23w REG               
> 0,19           0  110619773 /run/lock/apache2/rewrite-map.13262 (deleted)
> /usr/sbin 22669 22672   apacheuser   24w REG               
> 0,19           0  105844737 /run/lock/apache2/ssl-cache.13261 (deleted)
> /usr/sbin 22669 22673   apacheuser   23w REG               
> 0,19           0  110619773 /run/lock/apache2/rewrite-map.13262 (deleted)
> /usr/sbin 22669 22673   apacheuser   24w REG               
> 0,19           0  105844737 /run/lock/apache2/ssl-cache.13261 (deleted)
> /usr/sbin 22669 22674   apacheuser   23w REG               
> 0,19           0  110619773 /run/lock/apache2/rewrite-map.13262 (deleted)
> /usr/sbin 22669 22674   apacheuser   24w REG               
> 0,19           0  105844737 /run/lock/apache2/ssl-cache.13261 (deleted)
>
>
> -- 
> David Cunningham, Voisonics
> http://voisonics.com/
> USA: +1 213 221 1092
> UK: +44 (0) 20 3298 1642
> Australia: +61 (0) 2 8063 9019


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