[mythtv-users] find_orphans.py not working as expected

[Dan Wilga]

On 5/15/20 9:41 AM, Gary Raposo wrote:
> On 2020-05-14 5:09 p.m., Bill Meek wrote:
>> On 5/14/20 3:19 PM, Gary Raposo wrote:
>> ...
>>
>> If I have a host value that doesn't match my recordings, then I get all
>> recordings showing up as missing.
>>
>> Try printing the hosts value like this:
>>
>>     else:
>>         with DB as c:
>>             c.execute("""SELECT hostname FROM settings
>>                          WHERE value='BackendServerIP'""")
>>             hosts = [r[0] for r in c.fetchall()]
>>             print('hosts=',hosts) # <---------------------------
>>
>> Look at some recordings. Press 'i' twice and see what the value of
>> Recording Host: is set to.
>>
>
> Thanks for the suggestions, Bill. Still no luck.
>
> I checked the settings table and I do not have an entry for 
> BackendServerIP. I do have a valid/correct entry for MasterServerIP so 
> changed the code to reference MasterServerIP. No change.
>
> If I add the print statement you suggested, it's still showing None:
> hosts= [None]
>
> Checking my recordings (pressing "i" twice) I can see that they are 
> all correctly tagged with odysseus as the hostname. MasterServerIP 
> references the correct IP address for odysseus and /etc/hosts matches.
>
> Looking at the query, it looks like they are pulling hostname from the 
> settings table for the entry associated with the 
> BackendServerIP/MasterServerIP. I hadn't really looked at it that 
> closely before and assumed they were pulling the hostname based on the 
> data field. Wouldn't you know it, hostname is set to NULL for that entry.
>
> I updated the settings table and set hostname = odysseus for 
> MasterServerIP + added an entry for BackendServerIP (just in case) and 
> now I've moved on to a whole different set of problems!
>
> Before, I was able to see all my recordings but they were listed as 
> "Recordings with missing files". Now I get no output and the following 
> errors:
>
> $ ./find_orphans.py
> Traceback (most recent call last):
>   File "./find_orphans.py", line 222, in <module>
>     BE = MythBE(db=DB)
>   File "/usr/lib/python3.7/site-packages/MythTV/mythproto.py", line 
> 80, in __init__
>     self.hostname = self.db._gethostfromaddr(self.host)
>   File "/usr/lib/python3.7/site-packages/MythTV/database.py", line 
> 1348, in _gethostfromaddr
>     'BackendServerAddr', addr)
> MythTV.exceptions.MythDBError: Could not find setting 
> 'BackendServerAddr' on host 'None'
>
> Not too sure what's going on. Looking at the settings table, I have 
> three entries: BackendServerIP, MasterServerIP, and BackendServerAddr. 
> All have data set to 10.10.10.20 and hostname = odysseus.
>
> I'm poking around now in mythproto.py and database.py but (again) my 
> lack of Python experience is making this a slow process.
>
> As always, any suggestions are welcome. 

Forgive me if I missed it, but did you try simply:

   ./find_orphans.py odysseus

The script takes one parameter, the host name, as defined in the 
settings. To get a list of all the hostnames in use, you can also do:

   echo 'select distinct hostname from mythconverg.settings;' | mysql -u 
mythtv -p

This will include frontends.