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presence.py: 'NoneType' object has no attribute 'addCallbacks' #1

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hughns opened this issue Aug 18, 2014 · 1 comment
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presence.py: 'NoneType' object has no attribute 'addCallbacks' #1

hughns opened this issue Aug 18, 2014 · 1 comment

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@hughns
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hughns commented Aug 18, 2014

I'm periodically seeing exceptions.AttributeError: 'NoneType' object has no attribute 'addCallbacks' errors in the logs of the reference homeserver.

There does not appear to be a common type or timing of log entry immediately preceding the error.

Log extracts as follows.

Server started

2014-08-18 01:22:19,478 - twisted - 455 - INFO - Site starting on 8448

start_polling_presence

6 instances of the error relating to "/home/matrix/synapse/synapse/handlers/presence.py", line 426, in start_polling_presence:

  • 2014-08-18 01:22:23,201 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 01:55:56,586 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 02:55:57,690 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 04:55:00,809 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 06:55:25,996 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 08:55:00,928 - twisted - 455 - ERROR - Unhandled error in Deferred:

2014-08-18 01:22:23,201 - twisted - 455 - ERROR - Unhandled error in Deferred:
2014-08-18 01:22:23,202 - twisted - 455 - ERROR - Unhandled Error
Traceback (most recent call last):
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 382, in callback
self._startRunCallbacks(result)
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 490, in _startRunCallbacks
self._runCallbacks()
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 577, in _runCallbacks
current.result = callback(current.result, _args, *_kw)
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1155, in gotResult
_inlineCallbacks(r, g, deferred)
--- ---
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1099, in _inlineCallbacks
result = g.send(result)
File "/home/matrix/synapse/synapse/handlers/presence.py", line 426, in start_polling_presence
yield defer.DeferredList(deferreds)
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 820, in init
deferred.addCallbacks(self._cbDeferred, self._cbDeferred,
exceptions.AttributeError: 'NoneType' object has no attribute 'addCallbacks'

stop_polling_presence

6 instances of the error relating to "/home/matrix/synapse/synapse/handlers/presence.py", line 481, in stop_polling_presence:

  • 2014-08-18 01:24:15,247 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 01:56:47,801 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 02:56:48,862 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 04:55:52,694 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 06:56:07,297 - twisted - 455 - ERROR - Unhandled error in Deferred:
  • 2014-08-18 08:55:53,604 - twisted - 455 - ERROR - Unhandled error in Deferred:

2014-08-18 01:24:15,247 - twisted - 455 - ERROR - Unhandled error in Deferred:
2014-08-18 01:24:15,247 - twisted - 455 - ERROR - Unhandled Error
Traceback (most recent call last):
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 382, in callback
self._startRunCallbacks(result)
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 490, in _startRunCallbacks
self._runCallbacks()
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 577, in _runCallbacks
current.result = callback(current.result, _args, *_kw)
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1155, in gotResult
_inlineCallbacks(r, g, deferred)
--- ---
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1099, in _inlineCallbacks
result = g.send(result)
File "/home/matrix/synapse/synapse/handlers/presence.py", line 230, in set_state
self.stop_polling_presence(target_user)
File "/home/matrix/synapse/synapse/handlers/presence.py", line 481, in stop_polling_presence
return defer.DeferredList(deferreds)
File "/home/matrix/.local/lib/python2.7/site-packages/Twisted-14.0.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 820, in init
deferred.addCallbacks(self._cbDeferred, self._cbDeferred,
exceptions.AttributeError: 'NoneType' object has no attribute 'addCallbacks'
@leonerd
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leonerd commented Aug 19, 2014

I believe 992782b should fix it. Now covered by unit tests also.

@leonerd leonerd closed this as completed Aug 19, 2014
erikjohnston pushed a commit that referenced this issue May 15, 2017
@hamber-dick
Merge pull request #1 from hamber-dick/dev-branch-hamber-dick
43cd86b 
Documantation to chek synapse version
@KopfKrieg KopfKrieg mentioned this issue Jun 4, 2017
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@rgpublic rgpublic mentioned this issue Jul 24, 2018
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@rxl881 rxl881 mentioned this issue Nov 27, 2019
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anoadragon453 pushed a commit that referenced this issue Jan 24, 2020
@babolivier
Merge pull request #1 from matrix-org/babolivier/direct-avatar-name
e9f2925 
Forbid changing the name, avatar or topic of a direct room
@ghost ghost mentioned this issue Mar 7, 2020
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@marcdraco marcdraco mentioned this issue May 19, 2021
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This was referenced Aug 21, 2021
Merged
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lxndrbnsv added a commit to lxndrbnsv/synapse that referenced this issue Dec 23, 2021
@lxndrbnsv
testing login matrix-org#1
46fed8d
lxndrbnsv added a commit to lxndrbnsv/synapse that referenced this issue Dec 27, 2021
@lxndrbnsv
test forbid to leave matrix-org#1
c9cdd8a
lxndrbnsv added a commit to lxndrbnsv/synapse that referenced this issue Dec 28, 2021
@lxndrbnsv
checking if user exists matrix-org#1
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lxndrbnsv added a commit to lxndrbnsv/synapse that referenced this issue Dec 28, 2021
@lxndrbnsv
checking if user exists matrix-org#1
2a8d61c
lxndrbnsv added a commit to lxndrbnsv/synapse that referenced this issue Jan 10, 2022
@lxndrbnsv
registering user matrix-org#1
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Half-Shot added a commit that referenced this issue Aug 30, 2022
@Half-Shot
Rewrite #1
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Half-Shot added a commit that referenced this issue Sep 1, 2022
@Half-Shot @babolivier @clokep
Add monthly active users documentation (#13617)
c913e44 
* Add monthly active users documentation

* changelog

* Tidy up notes

* more tidyup

* Rewrite #1

* link back to mau docs

* fix links

* s/appservice|AS/application service

* further review

* a newline

* Remove bit about shadow banned users.

I think talking about them is confusing, and the current text doesn't imply they get any special treatment.

* Update docs/usage/administration/monthly_active_users.md

Co-authored-by: Patrick Cloke <[email protected]>

* Update docs/usage/administration/monthly_active_users.md

Co-authored-by: Patrick Cloke <[email protected]>

Co-authored-by: Brendan Abolivier <[email protected]>
Co-authored-by: Patrick Cloke <[email protected]>
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