Yumex-dnf won't run due to some lock

[Paul Cartwright]

On 10/16/2015 01:04 PM, Doug Wyatt wrote:
> Thanks for your reply ...
>
> However, /var/cache/dnf/metadata_lock.pid does not exist;
> if there was a dnf lock file, I would have expected it to
> prevent the 'dnf install ...' which I ran w/o problem.  Also,
> there do not appear to be any relevant *.pid files in /var/run.
I just  ran yumex-dnf & found this file in /var/cache/dnf :
-rw-r--r--   1 root root        4 Oct 16 13:10 metadata_lock.pid

I also do NOT have a .pid file in var/run associated with dnf..
sorry.. not sure what to do now..
I had that problem before & I think even logging out didn't help, I had 
to reboot..

>
> DW
>
> On 10/16/2015 4:58 AM, Paul Cartwright wrote:
>>
>> On 10/16/2015 04:38 AM, Doug Wyatt wrote:
>>> I ran yumex-dnf a few times, then the last time I got the message:
>>>
>>>    dnf is locked by another process
>>>    yum extender will exit
>>>       [   OK   ]
>>>
>>> and, it exits.
>>>
>>> I can run dnf install successfully, and rpm -i also works.
>>>
>>> Can anyone suggest where the lock might be?
>>>
>> https://ask.fedoraproject.org/en/question/76157/failed-to-obtain-the-transaction-lock-logged-in-as-root/
>>
>> |rm /var/cache/dnf/metadata_lock.pid|
>>
>>
>>
>>