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From Robert Newson <rnew...@apache.org>
Subject Re: View Returns Inconsistent Data on CouchDB 1.1
Date Wed, 29 Jun 2011 15:02:13 GMT
This is deliberate ("COUCHDB-799 - More granular ETags for views." --
"ETags for views now only change when their underlying view index
changes due to indexing or purges. ETags are also specific to each
view.")

The view is updated if and only if the emitted data actually changes.

B.

On 29 June 2011 13:57, Jan Lehnardt <jan@apache.org> wrote:
> Hi Behrad,
>
> can you open an issue for this? http://issues.apache.org/jira/browse/COUCHDB
>
> Cheers
> Jan
> --
>
> On 29 Jun 2011, at 13:02, Behrad Zari wrote:
>
>> Dear Couchees,
>> Consider a view on a CouchDB 1.1 private DB which emits: ( doc._id, 1 )
>> 1) call the view with reduce=false&include_docs=true by your browser!
>> 2) update a document (with futon)
>> 3) recall that view
>> You will see a cached-inconsistent document included in view results! (according
to _rev and doc data) with a 304 response!
>> 4) recall that view with CTRL+F5 (forces to 'no-cache' and cleaning if-Not-Match)
>> Now couchdb returns 200 with correct included document version!
>>
>> The above scenario was not happening in previous CouchDB version and at step 3 we
received latest document versions!
>> Also this happens when updated document DOES NOT reflect view (key,value) pairs,
but when we update an attribute that is emited by a view, Couch returns consistent results.
(logically since view hash is changed)
>> This seems an to be an issue with couchdb's Cache Control.
>>
>> for more details Request/Response headers are included down below:
>>
>> View GET Request @step 3:
>>
>>
>> Request Headers
>> ----------------------
>> Host192.168.128.11:5984
>> User-AgentMozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10
(maverick) Firefox/3.6.10
>> Accepttext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>> Accept-Languageen-us,en;q=0.5
>> Accept-Encodinggzip,deflate
>> Accept-CharsetISO-8859-1,utf-8;q=0.7,*;q=0.7
>> Keep-Alive115
>> Connectionkeep-alive
>> Cookiesession_id=439173cbd2f955017d8282102a9388a0b92a29c2; AuthSession=YWRtaW46NEUwQUVCNDE6YGCaYBacZ6PweA1xjFoK1U6FwrI
>> If-None-Match"AI17SB7U17NIG0SL4BRNABYZB"
>> Cache-Controlmax-age=0
>>
>> 304
>> -----
>> ServerCouchDB/1.1.0 (Erlang OTP/R13B03)
>> Etag"AI17SB7U17NIG0SL4BRNABYZB"
>> DateWed, 29 Jun 2011 09:07:46 GMT
>> Content-Typetext/plain;charset=utf-8
>> Cache-Controlmust-revalidate
>>
>>
>>
>> AND View GET Request @step 4:
>>
>> Request Headers
>> ----------------------
>> Host192.168.128.11:5984
>> User-AgentMozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10
(maverick) Firefox/3.6.10
>> Accepttext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>> Accept-Languageen-us,en;q=0.5
>> Accept-Encodinggzip,deflate
>> Accept-CharsetISO-8859-1,utf-8;q=0.7,*;q=0.7
>> Keep-Alive115
>> Connectionkeep-alive
>> Cookiesession_id=439173cbd2f955017d8282102a9388a0b92a29c2; AuthSession=YWRtaW46NEUwQUVCNDE6YGCaYBacZ6PweA1xjFoK1U6FwrI
>> Pragmano-cache
>> Cache-Controlno-cache
>>
>> 200
>> -----
>> Transfer-Encodingchunked
>> ServerCouchDB/1.1.0 (Erlang OTP/R13B03)
>> Etag"AI17SB7U17NIG0SL4BRNABYZB"
>> DateWed, 29 Jun 2011 09:09:52 GMT
>> Content-Typetext/plain;charset=utf-8
>> Cache-Controlmust-revalidate
>>
>>
>>
>> --Behrad
>
>

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