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From: Paul Hirst <paul.hirst@sophos.com>
To: "user@couchdb.apache.org" <user@couchdb.apache.org>
Subject: RE: Erlang view timeout
Thread-Topic: Erlang view timeout
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Date: Tue, 7 May 2013 09:27:36 +0000
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The one document which is causing me trouble contains ~400k entries in an a=
rray and I want to do an emit for each row. So it's a bit silly really. It =
just worked when I had <100k entries but I've clearly pushed it too far.
I think I'll look into splitting my documents up. That's probably a more su=
stainable approach, but if I could have tweaked the timeout it would have b=
een a nice quick fix for the moment.

-----Original Message-----
From: Robert Newson [mailto:rnewson@apache.org]
Sent: 07 May 2013 10:06
To: user@couchdb.apache.org
Subject: Re: Erlang view timeout

Ah, sorry. Reading couch_native_process.erl it seems you can't set that tim=
eout without a remote shell. How big are these documents?

On 7 May 2013 09:57, Paul Hirst <paul.hirst@sophos.com> wrote:
> I tried that but it didn't seem to help. The indexing process stays on th=
e status page in futon for about 7 seconds after I trigger the view and the=
n disappears again without successfully completing, so I assumed changing t=
hat setting wasn't affecting the erlang view timeout (os_process_timeout ra=
ther sounded like an external process kind of thing only).
>
> I'll try setting it even larger (I went for 50000) but maybe I just need =
to reduce the size of my documents somewhat.
>
> Thanks.
>
> -----Original Message-----
> From: Robert Newson [mailto:rnewson@apache.org]
> Sent: 07 May 2013 09:41
> To: user@couchdb.apache.org
> Subject: Re: Erlang view timeout
>
> [couchdb]
> os_process_timeout =3D 5000
>
> so curl -XPUT localhost:5984/_config/couchdb/os_process_timeout -d '"3000=
0"' will boost to 30s.
>
> B.
>
> On 7 May 2013 09:30, Paul Hirst <paul.hirst@sophos.com> wrote:
>> I decided to rewrite some of my javascript views in Erlang to get a bit =
more performance and hopefully avoid some problems I was seeing with huge d=
ocuments. However I'm running into timeout problems.
>>
>> In the log I get this shortly after trying to query the view:
>>
>> ** Reason for termination =3D=3D
>> ** {timeout,{gen_server,call,
>>                         [<0.1905.0>,
>>                          {prompt,[<<"map_doc">>,
>>                                   {[{<<"_id">>,
>>
>> I get the impression from reading the source that erlang views might
>> have a default timeout of 5 seconds (presumably per document?). I'm
>> mostly guessing based on the line
>>
>> -record(evstate, {ddocs, funs=3D[], query_config=3D[], list_pid=3Dnil, t=
imeout=3D5000}).
>>
>> Near the top of couch_native_process.erl
>>
>> I couldn't see anything in the configuration which would obviously let m=
e change this. Does anyone have any ideas?
>> Thanks.
>>
>> Paul
>>
>> ________________________________
>>
>> Sophos Limited, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP,=
 United Kingdom.
>> Company Reg No 2096520. VAT Reg No GB 991 2418 08.
>
> ________________________________
>
> Sophos Limited, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP, =
United Kingdom.
> Company Reg No 2096520. VAT Reg No GB 991 2418 08.

________________________________

Sophos Limited, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP, Un=
ited Kingdom.
Company Reg No 2096520. VAT Reg No GB 991 2418 08.