[clug] what's happened to atime?

[Anshul Gupta]

ext4 filesystem might have relatime option by default. You can override by atime mount option.

Cheers, Anshul 
 
On 19/04/2010, at 6:46 PM, Michael James wrote:

> Back when Linux made sense, cat-ing a file changed it's atime.
> 
> So when a daemon refused to obey some configuration change,
> first you restart it and look at your file's atime with ls -lu
> Hasn't been updated? It's not reading your configuration file, use strace.
> 
> Then came SSDs, benchmarks, and file system wars.
> And with them came the pox of acl, xattr, and noatime.
> 
> So, why does my    /etc/apache2/httpd.conf
> not show any sign of being read when apache2 starts?
> 
> Because in this directory / phase-of-the-moon / filesystem-whim
> cat-ing a file doesn't change the atime!
> 
> root at susejam:/etc/apache2> ls -lu httpd.conf
> -rw-r--r-- 1 root root 8323 2010-04-19 11:55 httpd.conf
> root at susejam:/etc/apache2> cat httpd.conf > /dev/null
> root at susejam:/etc/apache2> ls -lu httpd.conf
> -rw-r--r-- 1 root root 8323 2010-04-19 11:55 httpd.conf
> root at susejam:/etc/apache2> touch -a httpd.conf
> root at susejam:/etc/apache2> ls -lu httpd.conf
> -rw-r--r-- 1 root root 8323 2010-04-19 18:36 httpd.conf
> 
> 
> Distro	openSuSE-11.2
> fstab	LABEL=ROOT2     /               ext4    acl,user_xattr          1 1
> ls    -l	-rw-r--r-- 1 root root 8323 2009-10-28 03:51 httpd.conf
> ls  -lu	-rw-r--r-- 1 root root 8323 2010-04-19 11:55 httpd.conf
> lsattr	-------------e- ./httpd.conf
> 
> 
> Anyone got a clue(bat)
> michaelj
> 
> -- 
> Well theme my emoticons "Disgusted".
>     WHAT has Linux come to?
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