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Created by Philipp Winter@phwReporter

Failed assertion breaks BridgeDB's email responder

BridgeDB's email responder stops working after a while. The issue is probably related to the exception below but I don't know how exactly. As part of our Python 3 port, we modifed the context manager, which may be a good place to start debugging.

Unhandled Error
Traceback (most recent call last):
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/python/log.py", line 103, in callWithLogger
    return callWithContext({"system": lp}, func, *args, **kw)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/python/log.py", line 86, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/python/context.py", line 122, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/python/context.py", line 85, in callWithContext
    return func(*args,**kw)
--- <exception caught here> ---
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/internet/tcp.py", line 243, in doRead
    return self._dataReceived(data)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/internet/tcp.py", line 249, in _dataReceived
    rval = self.protocol.dataReceived(data)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/protocols/basic.py", line 454, in dataReceived
    self.lineReceived(line)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/mail/smtp.py", line 445, in lineReceived
    return getattr(self, 'state_' + self.mode)(line)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/mail/smtp.py", line 705, in dataLineReceived
    m.eomReceived() for m in self.__messages
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/twisted/mail/smtp.py", line 705, in <listcomp>
    m.eomReceived() for m in self.__messages
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/distributors/email/server.py", line 230, in eomReceived
    self.responder.reply()
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/distributors/email/autoresponder.py", line 574, in reply
    response = self.getMailData()
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/distributors/email/autoresponder.py", line 392, in getMailData
    client, lang)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/distributors/email/autoresponder.py", line 101, in createResponseBody
    bridges = context.distributor.getBridges(bridgeRequest, interval)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/distributors/email/distributor.py", line 145, in getBridges
    with bridgedb.Storage.getDB() as db:
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/Storage.py", line 352, in __enter__
    return next(self.gen)
  File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-packages/bridgedb-0.10.0+11.g4cdd6a61.dirty-py3.7.egg/bridgedb/Storage.py", line 472, in getDB
    assert _REFCOUNT == 0
builtins.AssertionError: