Disable whatever is cleaning /tmp

[Justin Brown]

> IMHO using a tmpfs for /tmp is a spectacularly stupid thing to do. How it got by the vetting process is beyond me.

There shouldn't be anything that uses anything beyond a negligible
amount of storage. Remember that there is no guarantee that /tmp data
is preserved between invocations. Why would there ever be a
significant amount of data stored there?

>From two F20 systems:

for i in $(mount -l | grep '^tmpfs' | grep -o '/[^ ]*'); do sudo du -hs $i; done

Server:
0 /dev/shm
720K /run
0 /sys/fs/cgroup
0 /tmp

Workstation:
3.8M /dev/shm
1.1M /run
0 /sys/fs/cgroup
652K /tmp

There are a number of locations for temporary files, which provide
different features. /tmp is on tmpfs because the FSH standard defines
that directory as so transitory that it shouldn't matter. For those
that don't want to use tmpfs, use /var/tmp/. Complaints about this
sort of thing are either a failure of the user or software developer
to keep up to date on the file system standards.

On Fri, Apr 25, 2014 at 12:03 PM, Rick Stevens <ricks at alldigital.com> wrote:
> On 04/25/2014 06:05 AM, Tim issued this missive:
>
>> Allegedly, on or about 24 April 2014, Rick Stevens sent:
>>>
>>> Also note that by default, /tmp is now a tmpfs (RAMdisk) thing, so any
>>> info in /tmp will NOT survive a reboot.
>>
>>
>> What happens when you run out of RAM?  Could that be the cause of /tmp
>> being prematurely wiped out?
>
>
> No, but IIRC the tmpfs filesystem created and mounted on /tmp is 50%
> of your system RAM. Once that is committed, it's done. It won't use up
> all of your RAM and /tmp won't get any bigger than that, but then again
> half of your available RAM is no longer available for program usage.
>
> IMHO using a tmpfs for /tmp is a spectacularly stupid thing to do. How
> it got by the vetting process is beyond me.
>
> ----------------------------------------------------------------------
> - Rick Stevens, Systems Engineer, AllDigital    ricks at alldigital.com -
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