[TriLUG] Reclaiming inodes

[Thomas Delrue via TriLUG]

On Thursday, September 28, 2017 9:53:40 AM EDT Ron Kelley wrote:
>For what it’s worth, the root partition “/" has allocated 735000 inodes, and
>you have used them all.  This means you have a TON of files (presumably very
>small ones) in that partition - regardless of partition size.  Another way
>to think about it; you have used 3.9GB of data (file size) but have used
>735000 inodes (IDs) to track them.

Ron, thanks for the explanation. I had multiple thousands of tiny files in /
var/spool/exim4 so... deleting them freed up those inodes and solved this 
issue. Thanks for the super-fast response! :)

Speaking of which, I seem to have no need for exim4, is this a safe thing to 
remove to prevent this from happening again?

>> On Sep 28, 2017, at 9:49 AM, Ron Kelley <rkelleyrtp at gmail.com> wrote:
>> 
>> Deleting/moving files off the partition should fix the problem.
>> 
>>> On Sep 28, 2017, at 9:48 AM, Thomas Delrue via TriLUG <trilug at trilug.org>
>>> wrote:
>>> 
>>> I'm in a bit of a bind and have never seen this before so if anyone can
>>> explain to me what is happening, that would be great:
>>> 
>>> I have a machine that keeps reporting that it's run out of disk space.
>>> So I do the usual "df -h" and get this:
>>> username at host ~ $ df -h
>>> Filesystem      Size  Used Avail Use% Mounted on
>>> /dev/root        12G  3.9G  7.1G  36% /
>>> devtmpfs        997M     0  997M   0% /dev
>>> tmpfs           999M     0  999M   0% /dev/shm
>>> tmpfs           999M  9.5M  990M   1% /run
>>> tmpfs           5.0M     0  5.0M   0% /run/lock
>>> tmpfs           999M     0  999M   0% /sys/fs/cgroup
>>> 
>>> But it reports that it has no more disk space, so I dig a little deeper
>>> and I find that I could also run df with the -i (inodes) flag, which
>>> gives me this:
>>> 
>>> username at host ~ $ df -hi
>>> Filesystem     Inodes IUsed IFree IUse% Mounted on
>>> /dev/root        735K  735K     0  100% /
>>> devtmpfs         250K  1.4K  248K    1% /dev
>>> tmpfs            250K     1  250K    1% /dev/shm
>>> tmpfs            250K  1.2K  249K    1% /run
>>> tmpfs            250K     3  250K    1% /run/lock
>>> tmpfs            250K    16  250K    1% /sys/fs/cgroup
>>> 
>>> I appear to have "run out of inodes"? Is there a way to reclaim them?

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