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Message-ID: <d7c4bbc0810210121q6012d31fi80f5af5eaf78190@mail.gmail.com>
Date: Tue, 21 Oct 2008 17:21:37 +0900
From: "Yuuki Takano" <ytakano@jaist.ac.jp>
Sender: ytakanoster@gmail.com
To: couchdb-user@incubator.apache.org
Subject: Re: couchDB gave up building views
In-Reply-To: <d7c4bbc0810201020w688ca959w3dd4c09242e9a157@mail.gmail.com>
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References: <d7c4bbc0810200607k75d02412t1c4e138cdb489b8f@mail.gmail.com>
	 <5CB795A1-2DCE-45D5-BBEC-3828AD6928D7@apache.org>
	 <d7c4bbc0810201020w688ca959w3dd4c09242e9a157@mail.gmail.com>

So I read a source of couchDB, I understood why my map functions were
considered they have bugs.

readline/2 function in couch_query_servers.erl reads and waits data
from Port connected to the couchjs,
and it give up waiting after 5 seconds.
This means couchDB cannot build views if couchjs cannot send data in 5 seconds.

In my situation, my map functions failed despite it work well when
there is a few document because of the reason above.
So, I changed hardcoded timeout seconds 5000 to 50000 and reinstall couchDB.
Then, my map functions work well.


Thank you for your comments.


2008/10/21 Yuuki Takano <ytakano@jaist.ac.jp>:
> Thank you very much.
>
>> One, your HTTP request should block until the view returns. If the
>> HTTP request times out you can just try again, or notify your user, or
>> what ever is appropriate.
>
> OK.
> I underdtand, tank you!
> I'll try it later.
>
>
>> The error that you received about the timeout in couch means your map
>> functions have a bug that is preventing them from returning data to
>> couch. Aftering fixing that issue, things should work smoothly.
>
> My map functions work well when there is a few document.
>
>
>
>> I'm guessing you are on an old version of Erlang. Build erlang from the latest source at erlang.org
>
> Thank you, but I use the earliest version of Erlang (v5.6.4).
>
>
> 2008/10/20 Damien Katz <damien@apache.org>:
>> I'm guessing you are on an old version of Erlang. Build erlang from the
>> latest source at erlang.org
>>
>> -Damien
>>
>>
>> On Oct 20, 2008, at 9:07 AM, Yuuki Takano wrote:
>>
>>> Hi there,
>>>
>>> I inserted 20,000 documents into couchDB, and looked up views of it.
>>> However , couchDB gave up building views because of timed out.
>>>
>>> The views were quite simple, such as
>>>
>>> function(doc) {
>>>   if (doc.type == 'vote') {
>>>       emit([doc.service, doc.user, doc.item], doc);
>>>   }
>>> }
>>>
>>> It seems that couchDB does not support many documents at this version
>>> (0.8.1).
>>> Is that right?
>>>
>>> Regards,
>>>
>>> -- Yuuki Takano <ytakano@jaist.ac.jp>
>>
>>
>