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From Robert Newson <rnew...@apache.org>
Subject Re: Strange behaviour of update_notification process
Date Mon, 02 Jul 2012 15:11:28 GMT

This could be a bug, could you report it our jira at issues.apache.org/jira/browse/COUCHDB?

It appears to be down right now, le sigh, but should be back soon.

B.

On 2 Jul 2012, at 14:27, Antonino Murador wrote:

> Hi,
> I notice a behaviour of the update_notification process that I cannot
> understand.
> I setup CouchDB to send update notifications to an external process in my
> local.d/example.ini:
> 
> [update_notification]
> example = /usr/local/bin/example.py
> 
> The script example.py keeps reading lines from stdin and simply logs.
> Everything seems to work fine when a normal document is
> created/modified/deleted
> in a db; the scripts receives the expected notification line:
> 
> {"type":"updated","db":"example_db"}
> 
> The problem arises when a DESIGN document gets modified in example_db. In
> this
> case the script is relaunched and I notice the following in CouchDB logs:
> 
> [Mon, 02 Jul 2012 12:03:32 GMT] [info] [<0.127.0>] 10.0.1.18 - - PUT
> /example_db/_design/status 201
> [Mon, 02 Jul 2012 12:03:32 GMT] [debug] [<0.96.0>] OS Process #Port<0.1894>
> Input  :: {"type":"updated","db":"example_db"}
> [Mon, 02 Jul 2012 12:03:32 GMT] [error] [<0.96.0>] Failed sending data:
> {[{type,<<"ddoc_updated">>},
>                                          {db,
>                                           {<<"example_db">>,
>                                            <<"_design/status">>}}]} ->
> {json_encode,
> 
> {bad_term,
> 
> {<<"example_db">>,
> 
> <<"_design/status">>}}}
> [Mon, 02 Jul 2012 12:03:32 GMT] [error] [<0.88.0>] Update notification
> process
> <0.96.0> died: normal
> [Mon, 02 Jul 2012 12:03:32 GMT] [debug] [<0.127.0>] 'GET'
> /_utils/document.html?example_db/_design/status {1,
> 
> 1}
> from "10.30.1.18"
> Headers:
> [{'Accept',"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"},
>          {'Accept-Encoding',"gzip, deflate"},
>          {'Accept-Language',"en-us,en;q=0.5"},
>          {'Connection',"keep-alive"},
>          {'Cookie',"5984_recent=example_db"},
>          {'Host',"localhost:5984"},
>          {'If-Modified-Since',"Fri, 29 Jun 2012 14:39:40 GMT"},
>          {'Referer',"
> http://localhost:5984/_utils/document.html?example_db/_design/status"},
>          {'User-Agent',"Mozilla/5.0 (X11; Linux i686; rv:10.0.5)
> Gecko/20100101 Firefox/10.0.5 Iceweasel/10.0.5"}]
> [Mon, 02 Jul 2012 12:03:32 GMT] [error] [<0.94.0>] {error_report,<0.31.0>,
>                       {<0.94.0>,supervisor_report,
>                        [{supervisor,{local,couch_db_update_notifier_sup}},
>                         {errorContext,child_terminated},
>                         {reason,normal},
>                         {offender,
>                             [{pid,<0.95.0>},
>                              {name,"example"},
>                              {mfargs,
>                                  {couch_db_update_notifier,start_link,
>                                      ["/usr/local/bin/example.py"]}},
>                              {restart_type,permanent},
>                              {shutdown,1000},
>                              {child_type,supervisor}]}]}}
> 
> Can anyone explain me what is going wrong?
> 
> I am using CouchDB 1.2.0
> 
> Thanks in advance,
> Antonino


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