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From Jesse Hallett <halle...@gmail.com>
Subject Re: Varnish and Multi-doc Fetch?
Date Fri, 11 Sep 2009 19:54:24 GMT
On Fri, Sep 11, 2009 at 11:12 AM, Jan Lehnardt <jan@apache.org> wrote:
>
> On 11 Sep 2009, at 19:58, Paul Davis wrote:
>
>> On Fri, Sep 11, 2009 at 1:28 PM, Zachary Zolton
>> <zachary.zolton@gmail.com> wrote:
>>>
>>> Hi,
>>>
>>> I'm testing out using Varnish for my application, and so far most
>>> everything "just works" with CouchDB. The only real problem I have is
>>> that I'm using (probably abusing!) the multi-doc fetch feature, which
>>> results in a POST request that Varnish isn't gonna cache.
>>>
>>> (As an aside, I'm likely not properly de-normalizing my data—since I'm
>>> using the multi-doc fetch much like one would use SQL joins. I do plan
>>> some big refactoring...!)
>>>
>>> Two potential solutions I thought of:
>>>
>>> 1) Cache POST requests in my Varnish config—this sounds like a can of
>>> worms though, since POSTs can also be used for creating documents (not
>>> to mention all the VCL-fu required)
>>>
>>> 2) Add a GET multi-doc fetch feature to CouchDB—however, I'm guessing
>>> there's a good reason why we don't already have this, right?  (^_-)
>>>
>>> Anyways, I was wondering if anyone else has dealt with this situation
>>> or has any ideas.
>>>
>>>
>>> Cheers,
>>>
>>> Zach
>>>
>>
>> Zach,
>>
>> The original motivation for not using GET was basically:
>>
>> 1. URL lengths are limited

According to reading that I have done every browser supports at least
2000 characters in a URL.  And many browsers support URLs of unlimited
length.[1]

[1]: http://www.boutell.com/newfaq/misc/urllength.html

>> 2. GET's with bodies aren't consistently supported
>> 3. POST!
>>
>> Its been often requested to allow for a GET url parameter to multi-key
>> fetch, even in the face of the length limitations. If you *really
>> really* want it, then patches welcome, if you only *really* want it,
>> then you could make sure that there's a ticket open and then throw
>> things at me till it gets done.
>>
>> Also, this shouldn't be too difficult of a patch. I'm thinking along
>> the lines of just adding a multi=[key1, key2, key3...] parameter. Or
>> perhaps fetch=key&fetch=key&fetch=key. But the code all stays pretty
>> shallow. It'd just be hooking that up and passing it to the function
>> in place of the value that normally gets grabbed form the body.
>
> We could also start supporting GET bodies :)
>
> Moving to dev@.
>
> Cheers
> Jan
> --
>
>

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