desktop couch service changes to zombieprocess

[wimpunk]

Binary package hint: desktopcouch

After starting using the getPort method, desktopcouch gets started but after a few minutes one of the couchservices changes to a zombie process

Reproduction:
$ dbus-send --session --dest=org.desktopcouch.CouchDB --print-reply --type=method_call / org.desktopcouch.CouchDB.getPort

ps ax returns:
3035 ? S 0:01 /usr/bin/python /usr/lib/desktopcouch/desktopcouch-service
 3055 ? S 0:00 /bin/sh -e /usr/bin/couchdb -n -a /etc/couchdb/default.ini -a /etc/xdg/desktop-couch/compulsory-auth.ini -a /home/wim/.config/desktop-couch/desktop-couchdb.ini -b -r 0 -p /home/wim/.cache/desktop-couch
 3062 ? S 0:00 /bin/sh -e /usr/bin/couchdb -n -a /etc/couchdb/default.ini -a /etc/xdg/desktop-couch/compulsory-auth.ini -a /home/wim/.config/desktop-couch/desktop-couchdb.ini -b -r 0 -p /home/wim/.cache/desktop-couch
 3063 ? Sl 0:01 /usr/lib/erlang/erts-5.7.4/bin/beam -Bd -K true -A 4 -- -root /usr/lib/erlang -progname erl -- -home /home/wim -- -noshell -noinput -sasl errlog_type error -couch_ini /etc/couchdb/default.ini /etc/xdg/
 3071 ? Ss 0:00 heart -pid 3063 -ht 11
 3074 ? SN 0:00 /usr/bin/python /usr/lib/desktopcouch/desktopcouch-service
 3075 ? S 0:00 /usr/bin/python /usr/lib/desktopcouch/desktopcouch-service
 3076 ? Ssl 0:00 /usr/lib/couchdb/bin/couchjs /usr/share/couchdb/server/main.js

After a few minutes it returns:
3035 ? S 0:02 /usr/bin/python /usr/lib/desktopcouch/desktopcouch-service
 3055 ? S 0:00 /bin/sh -e /usr/bin/couchdb -n -a /etc/couchdb/default.ini -a /etc/xdg/desktop-couch/compulsory-auth.ini -a /home/wim/.config/desktop-couch/desktop-couchdb.ini -b -r 0 -p /home/wim/.cache/desktop-couch
 3062 ? S 0:00 /bin/sh -e /usr/bin/couchdb -n -a /etc/couchdb/default.ini -a /etc/xdg/desktop-couch/compulsory-auth.ini -a /home/wim/.config/desktop-couch/desktop-couchdb.ini -b -r 0 -p /home/wim/.cache/desktop-couch
 3063 ? Sl 0:03 /usr/lib/erlang/erts-5.7.4/bin/beam -Bd -K true -A 4 -- -root /usr/lib/erlang -progname erl -- -home /home/wim -- -noshell -noinput -sasl errlog_type error -couch_ini /etc/couchdb/default.ini /etc/xdg/
 3071 ? Ss 0:00 heart -pid 3063 -ht 11
 3074 ? SN 0:01 /usr/bin/python /usr/lib/desktopcouch/desktopcouch-service
 3075 ? Z 0:01 [desktopcouch-se] <defunct>
 3076 ? Ssl 0:00 /usr/lib/couchdb/bin/couchjs /usr/share/couchdb/server/main.js

As far as I see, it doesn't synchronise with ubuntu-one after it changed to zombie mode.

$ lsb_release -rd
Description: Ubuntu Natty (development branch)
Release: 11.04

$ apt-cache policy desktopcouch
desktopcouch:
  Installed: 1.0.7-0ubuntu2
  Candidate: 1.0.7-0ubuntu2
  Version table:
 *** 1.0.7-0ubuntu2 0
        500 http://ubuntu.mirrors.skynet.be/pub/ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

[Chad Miller (cmiller)]

I need the contents of the log file ~/.cache/desktop-couch/log/desktop-couch-dbus.log , please. That should help me determine the problem.

[wimpunk (wimpunk)]

2011-04-18 08:37:57,952 INFO Loaded Ubuntu One extension for desktopcouch.
2011-04-18 08:37:57,963 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-04-18 08:37:57,966 DEBUG starting dbus main loop
2011-04-18 08:37:58,704 DEBUG Not adding desktopcouch pairing since we are already paired
2011-04-18 08:37:58,705 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing
2011-04-18 08:42:55,888 DEBUG ending dbus main loop
2011-04-18 08:42:55,889 INFO exiting.
2011-04-18 08:42:55,890 WARNING shutting down personal couchdb.
2011-04-18 08:43:50,715 INFO Loaded Ubuntu One extension for desktopcouch.
2011-04-18 08:43:50,717 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-04-18 08:43:50,723 DEBUG starting dbus main loop
2011-04-18 08:43:52,512 DEBUG Not adding desktopcouch pairing since we are already paired
2011-04-18 08:43:52,513 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing
2011-04-18 08:46:58,444 INFO Loaded Ubuntu One extension for desktopcouch.
2011-04-18 08:46:58,449 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-04-18 08:46:58,453 DEBUG starting dbus main loop
2011-04-18 08:47:01,272 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing
2011-04-18 08:47:01,272 ERROR Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/desktopcouch/application/plugins/ubuntuone_pairing.py", line 97, in <lambda>
    *args)
  File "/usr/lib/pymodules/python2.7/desktopcouch/application/plugins/ubuntuone_pairing.py", line 84, in got_new_credentials
    pair_with_ubuntuone(couchdb_port, blocking_semaphores)
  File "/usr/lib/pymodules/python2.7/desktopcouch/application/plugins/ubuntuone_pairing.py", line 47, in pair_with_ubuntuone
    ctx=None)
  File "/usr/lib/pymodules/python2.7/desktopcouch/application/server.py", line 75, in __init__
    oauth_tokens=oauth_tokens, ctx=ctx, views_factory=views_factory)
  File "/usr/lib/pymodules/python2.7/desktopcouch/records/database.py", line 123, in __init__
    self._reconnect()
  File "/usr/lib/pymodules/python2.7/desktopcouch/application/server.py", line 85, in _reconnect
    super(DesktopDatabase, self)._reconnect(uri=uri)
  File "/usr/lib/pymodules/python2.7/desktopcouch/records/database.py", line 139, in _reconnect
    self._server.create(self._database_name)
  File "/usr/lib/pymodules/python2.7/couchdb/client.py", line 193, in create
    self.resource.put_json(validate_dbname(name))
  File "/usr/lib/pymodules/python2.7/couchdb/http.py", line 405, in put_json
    status, headers, data = self.put(*a, **k)
  File "/usr/lib/pymodules/python2.7/couchdb/http.py", line 384, in put
    return self._request('PUT', path, body=body, headers=headers, **params)
  File "/usr/lib/pymodules/python2.7/couchdb/http.py", line 419, in _request
    credentials=self.credentials...

[wimpunk (wimpunk)]

Is there any news about this issue? It seems to happen with all three pc's I upgraded to ubuntu Nanty. Is there anything more I can provide, I see the bug is still set as incomplete...

[i1abnrk (i1abnrk)]

I have this problem, too. Essentially I have two instances of couchdb running. One is a zombie called 'desktop-couch-se' that is zombie in 'do_exit()', the other is called 'desktop-couch-service' in do_wait() that is fine' couchdb itself has two instances as well, one is in 'do_wait()' the other is in 'pipe_wait()'. Also, when the thread becomes zombie my desktop wallpaper and fonts become garbled and CPU gets laggy (like a memory leak). I am using the rt overclock option for pulseaudio that can be installed with jackaudio and this problem started for me with Ubuntu 11.04.
Here is a log from ~/.cache

2011-09-20 08:46:46,669 INFO Loaded Ubuntu One extension for desktopcouch.
2011-09-20 08:46:46,669 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-09-20 08:46:46,670 DEBUG starting dbus main loop
2011-09-20 08:46:51,720 DEBUG Not adding desktopcouch pairing since we are already paired
2011-09-20 08:46:51,720 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing
2011-09-20 11:50:51,556 INFO Loaded Ubuntu One extension for desktopcouch.
2011-09-20 11:50:51,556 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-09-20 11:50:51,557 DEBUG starting dbus main loop
2011-09-20 11:50:59,862 DEBUG Not adding desktopcouch pairing since we are already paired
2011-09-20 11:50:59,862 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing
2011-09-20 20:42:34,964 INFO Loaded Ubuntu One extension for desktopcouch.
2011-09-20 20:42:35,010 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-09-20 20:42:35,011 DEBUG starting dbus main loop
2011-09-20 20:42:38,219 DEBUG Not adding desktopcouch pairing since we are already paired
2011-09-20 20:42:38,220 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing
2011-09-20 23:52:21,173 INFO Loaded Ubuntu One extension for desktopcouch.
2011-09-20 23:52:21,189 INFO adding desktopcouch.application.plugins.ubuntuone_pairing to to blocking semaphore list
2011-09-20 23:52:21,190 DEBUG starting dbus main loop
2011-09-20 23:52:23,881 DEBUG Not adding desktopcouch pairing since we are already paired
2011-09-20 23:52:23,882 INFO removing semaphore for desktopcouch.application.plugins.ubuntuone_pairing

attached is my desktop-couch-replication.log which seems to get frequent errors from SSL.

[i1abnrk (i1abnrk)]

I found the source of the zombie for me. It no longer happens now that I have disabled the bindwood extension for firefox. (The gui issues noted above are apparently unrelated to couchdb crashes, since that still happens).