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From CGS <cgsmcml...@gmail.com>
Subject Re: couchdb returning truncated JSON
Date Sun, 19 Aug 2012 10:05:10 GMT
I don't suppose the problem is coming from CouchDB, but from your external
environment which has a limited number of characters per line, truncating
the message if more. It happened to me in few occasions (Linux terminal
truncated my message because it was single line - line end was translated
as "\n" inside the message, so, no real line break was actually registered).

CGS


On Sun, Aug 19, 2012 at 1:46 AM, Tim Tisdall <tisdall@gmail.com> wrote:

> I have a script where I query a view for multiple entries of data.
> I'm doing it in batches of 1000.  It works fine multiple times and
> then suddenly it returns a result that doesn't properly parse as JSON
> because it's missing some content at the end (not sure how much, but
> it's at least missing the final bracket to make it complete).
>
> My logs don't point out any problem...
>
> [Sat, 18 Aug 2012 22:14:08 GMT] [debug] [<0.26768.3>] 'POST'
> /app_stats/_design/processing/_view/blanks {1,0} from "127.0.0.1"
> Headers: [{'Content-Length',"14010"},
>           {'Content-Type',"application/json"},
>           {'Host',"localhost"}]
> [Sat, 18 Aug 2012 22:14:08 GMT] [debug] [<0.26768.3>] OAuth Params: []
> [Sat, 18 Aug 2012 22:14:08 GMT] [debug] [<0.26768.3>] request_group
> {Pid, Seq} {<0.20450.3>,95240673}
> [Sat, 18 Aug 2012 22:14:08 GMT] [info] [<0.26768.3>] 127.0.0.1 - -
> POST /app_stats/_design/processing/_view/blanks 200
>
> Here's what I received from couchdb:
>
> HTTP/1.0 200 OK
> Server: CouchDB/1.2.0 (Erlang OTP/R14A)
> ETag: "B25M1ITCCF4RKMFE87QMQ1N3M"
> Date: Sat, 18 Aug 2012 22:22:10 GMT
> Content-Type: text/plain; charset=utf-8
> Cache-Control: must-revalidate
>
> {"total_rows":14829491,"offset":12357523,"rows":[
>
> {"id":"34049664743","key":"34049664743","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34049674790","key":"34049674790","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34049683784","key":"34049683784","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34049710675","key":"34049710675","value":[{"start_date":"2012-08-05","end_date":null}]},
>       [  **  SNIP **  ]
>
> {"id":"34082476762","key":"34082476762","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34082494494","key":"34082494494","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34082507402","key":"34082507402","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34082533553","key":"34082533553","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34082612840","key":"34082612840","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34082621527","key":"34082621527","value":[{"start_date":"2012-08-05","end_date":null}]},
>
> {"id":"34082680993","key":"34082680993","value":[{"start_date":"2012-08-05","end_date":null}]}
>
> it seems to consistently truncate at a point where the next character
> should either be another comma or a closing square bracket (to close
> the "rows" array).
>
> I tried changing the script to do batches of 100 and it seems to be
> running without problems.  Shouldn't there be some sort of error,
> though?
>

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