Hey Pat,

thanks for your response. Too bad you can't help – that's what I feared. :-) 
I'll try to investigate when I come back to the bug and I'll let you know if 
it's a bug in TS/Riddle that I can reproduce.

Cheers,
- Clemens

Clemens Kofler
http://www.railway.at
[email protected]

railway - welcome aboard!

On Feb 14, 2011, at 1:26 AM, Pat Allan wrote:

> Hi Clemens
> 
> Sorry it's taken me so long to get back to you on this. Unfortunately, I 
> don't think I'm much help... I've no idea why the query for two facets 
> doesn't work - there's a scenario for that in TS's feature set, which I just 
> ran against 1.10-beta again just to make sure - it's green.
> 
> Debugging facet counts is messy via email... happy to investigate on my 
> machine if you're willing to go that far - that said, you seem to have a good 
> understanding of how TS and Sphinx work, so not sure if that's worth the 
> effort.
> 
> I guess I'd begin by choosing one query that's returning the wrong results, 
> and then checking the raw Sphinx results and the index SQL query to make sure 
> at each stage we're getting the results we actually want.
> 
> -- 
> Pat
> 
> On 04/02/2011, at 9:57 PM, Clemens Kofler wrote:
> 
>> Hi,
>> 
>> I'm having strange issues with facets after updating to Sphinx 1.10
>> beta (including a little hack – I'll come to that in a second).
>> 
>> Here's roughly what's happening (on the console, but it's the same via
>> the web):
>>>> Product.facets(:facets => [:category_path, :brand])
>> Riddle::ResponseError: No response from searchd (status: , version: )
>>      from /Users/clemens/.rvm/gems/ruby-1.8.7-p302@rpx/gems/riddle-1.2.2/
>> lib/riddle/client.rb:611:in `request'
>>      ...
>>>> Product.facets(:facets => :brand)
>> => {:brand=>{2583853161=>63, ... }
>>>> Product.facets(:facets => :category_path)
>> => {:category_path=>{"2087,2173"=>1, ... }
>> 
>> So I can get both facets separately with no issues but if I try to
>> query them at once it doesn't work.
>> 
>> Here's the index and the aforementioned hack as well as my stab at
>> "treed facets": https://gist.github.com/810978
>> 
>> A word on the structure of categories: Each product belongs to a
>> category and categories are part of a tree where I also store the path
>> (say, Electronics > Computers > Portable could be ids 1, 2 and 3, so
>> the path would be 1,2,3). The first MVA is so I can use it in a filter
>> (:with => { :category_ids => [1] } should return all products
>> categorized in category 1 and any of its children), the second MVA is
>> so I can re-create the tree from the facet without having to
>> instantiate products/categories (can't do that with the first MVA
>> because it sorts the ids so a path of "1,100,10" would become
>> "1,10,100" which is not the correct tree structure anymore and
>> therefore messes up my facets).
>> 
>> I mention this because another problem happens here: Facet counts get
>> messed up because some records don't seem to be counted in the facets
>> although they are (or should be) in the index. For example, the facet
>> value for a (parent) category named "Accessoires" might be 15 but when
>> I search with the same parameters I get 16 hits. It's not an off-by-
>> one error because for other facets there are different error margins.
>> I've tried debugging it by taking a look at the index SQL but the only
>> thing I see in common is that the CRC32 of the missing records seems
>> different:
>> "22,25" => 3446997767
>> "22,28" => 3015999418
>> "22,29" => 3301134124
>> but
>> "22,27" => 595288619
>> 
>> It seems that the records with the "different" CRC32 values aren't
>> picked up by the facets. I've tried debugging the shit out of TS ;-)
>> and inspected pretty much every step of the facet search and can't
>> find the "22,27" value anywhere – I have no idea why it's not there.
>> 
>> The env:
>> - Ruby 1.8.7
>> - Rails 3.0.3
>> - Thinking Sphinx 2.0.2
>> - Riddle 1.2.2
>> - Sphinx 1.10-beta
>> 
>> I hope the problems are somewhat clear. I'd be grateful for any
>> pointers where to look for errors.
>> 
>> Thanks in advance,
>> - C.
>> 
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