[mythtv-users] Caching behavior

Michael T. Dean mtdean at thirdcontact.com
Tue Oct 16 23:22:20 UTC 2007


On 10/16/2007 05:49 PM, David Brodbeck wrote:
> On Oct 16, 2007, at 2:29 PM, Michael T. Dean wrote:
>   
>> It turns out that the message you're seeing is a bit misleading.  That
>> message ("This DataDirect listings source is shared by 2 MythTV
>> lineups") is printed out any time 2 separate video sources use SD with
>> the same userid and password--regardless of whether the lineupid is
>> identical.  It seems that some of the "setup" data (i.e. cookies,  
>> lists
>> of lineups available, etc.--that's necessary for downloading listings
>> data from any/all lineups) is cached, so the message is still output.
>> However, the program listings data is not being cached because there's
>> no way to download partial lineups from SD/TMS, so doing so  
>> wouldn't be
>> of any benefit.
>>     
> Hmm.  Maybe.  But I still think there's more going on than you  
> think.  When the first lineup is updated, I see wget output as the  
> data is downloaded.  When the second one is updated, I don't.  So if  
> it's not reusing the data, it's being really sneaky about downloading  
> it the second time.  Log snippets below:
>   
...
> 2007-10-08 11:14:44.577 DataDirect: Copying from DD cache

So, what about the query I gave you?  Are they the same lineupid (=the
same lineup)?

SELECT sourceid, name, lineupid FROM videosource;

Mike


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