Antonino Murador created COUCHDB-1508:
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Summary: Unexpected behaviour of update_notification process
Key: COUCHDB-1508
URL: https://issues.apache.org/jira/browse/COUCHDB-1508
Project: CouchDB
Issue Type: Bug
Affects Versions: 1.2
Reporter: Antonino Murador
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 "10.0.1.18"
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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