ConflictError debugging?

Hello,

Can someone please tell me what is going on here?


INFO:[('127.0.0.1', 4343)] ClientStorage (pid=5766) created RW/normal 
for storage: '1'
INFO:created temporary cache file '<fdopen>'
DEBUG:Using selector: PollSelector
DEBUG:disconnected <ZEO.asyncio.client.Client object at 0xb3578ed0> None
DEBUG:try_connecting
INFO:Connected Protocol(('127.0.0.1', 4343), '1', 0)
INFO:[('127.0.0.1', 4343)] Connected to storage: ('localhost', 4343)
DEBUG:new transaction
DEBUG:commit
DEBUG:new transaction
DEBUG:commit
INFO:[('127.0.0.1', 4343)] ClientStorage (pid=5766) created RW/normal 
for storage: '1'
INFO:created temporary cache file '<fdopen>'
DEBUG:Using selector: PollSelector
DEBUG:disconnected <ZEO.asyncio.client.Client object at 0xb35528d0> None
DEBUG:try_connecting
INFO:Connected Protocol(('127.0.0.1', 4343), '1', 0)
INFO:[('127.0.0.1', 4343)] Connected to storage: ('localhost', 4343)
DEBUG:new transaction
DEBUG:commit
DEBUG:new transaction
DEBUG:commit
DEBUG:new transaction
DEBUG:commit <Connection at 0945fb70>
DEBUG:commit
DEBUG:Initialized ZODB instance: <Database u'127.0.0.1:4343' :: V 0>
INFO:[('127.0.0.1', 4545)] ClientStorage (pid=5766) created RW/normal 
for storage: '1'
INFO:created temporary cache file '<fdopen>'
DEBUG:Using selector: PollSelector
DEBUG:disconnected <ZEO.asyncio.client.Client object at 0x09111150> None
DEBUG:try_connecting
INFO:Connected Protocol(('127.0.0.1', 4545), '1', 0)
INFO:[('127.0.0.1', 4545)] Connected to storage: ('localhost', 4545)
DEBUG:new transaction
DEBUG:commit
DEBUG:new transaction
DEBUG:commit
DEBUG:new transaction
DEBUG:commit <Connection at 09115770>
DEBUG:commit
DEBUG:Initialized ZODB instance: <Database u'127.0.0.1:4545' :: V 30>
DEBUG:Initialized ZODB connections: {'db_default': <Database 
u'127.0.0.1:4343' :: V 0>, 'db_blog': <Database u'127.0.0.1:4545' :: V 30>}
DEBUG:new transaction
DEBUG:commit <Connection at b34dee10>
libschevo 4.0.2 :: Database Activities :: Update Database

Opening database...
Current database version is 0.
Syncing database with new schema source...
db_default
db_blog
Traceback (most recent call last):
   File "/usr/local/pypy/bin/schevo", line 11, in <module>
     load_entry_point('libschevo', 'console_scripts', 'schevo')()
   File "/home/erob/src/libschevo/lib/schevo/script/command.py", line 
32, in __call__
     return self.main(arg0, args)
   File "/home/erob/src/libschevo/lib/schevo/script/command.py", line 
74, in main
     return command()(*args)
   File "/home/erob/src/libschevo/lib/schevo/script/command.py", line 
32, in __call__
     return self.main(arg0, args)
   File "/home/erob/src/libschevo/lib/schevo/script/command.py", line 
74, in main
     return command()(*args)
   File "/home/erob/src/libschevo/lib/schevo/script/command.py", line 
32, in __call__
     return self.main(arg0, args)
   File "/home/erob/src/libschevo/lib/schevo/script/db_update.py", line 
92, in main
     db._sync(schema_source, initialize=False)
   File "/home/erob/src/libschevo/lib/schevo/database2.py", line 1477, 
in _sync
     self._commit()
   File "/home/erob/src/libschevo/lib/schevo/backends/zodb.py", line 
102, in commit
     transaction.commit()
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/transaction/_manager.py", 
line 131, in commit
     return self.get().commit()
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/transaction/_transaction.py", 
line 311, in commit
     reraise(t, v, tb)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/transaction/_transaction.py", 
line 302, in commit
     self._commitResources()
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/transaction/_transaction.py", 
line 447, in _commitResources
     reraise(t, v, tb)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/transaction/_transaction.py", 
line 424, in _commitResources
     rm.tpc_vote(self)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/ZODB/Connection.py", 
line 692, in tpc_vote
     s = vote(transaction)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/ZEO/ClientStorage.py", 
line 753, in tpc_vote
     for oid in self._call('vote', id(txn)) or ():
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/ZEO/asyncio/client.py", 
line 764, in call
     return self.__call(self.call_threadsafe, method, args, **kw)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/ZEO/asyncio/client.py", 
line 743, in call
     return self.wait_for_result(result, timeout)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/ZEO/asyncio/client.py", 
line 756, in wait_for_result
     return future.result(timeout)
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/concurrent/futures/_base.py", 
line 429, in result
     return self.__get_result()
   File 
"/usr/local/pypy/pypy2-v5.9.0-linux32/site-packages/concurrent/futures/_base.py", 
line 381, in __get_result
     raise exception_type, self._exception, self._traceback
ConflictError: database conflict error (oid 0x01, class 
persistent.mapping.PersistentMapping, serial this txn started with 
0x03c8913c1dc30988 2018-06-30 13:48:06.975437, serial currently 
committed 0x03c8913dac03f200 2018-06-30 13:49:40.316112)

The command i'm attempting to run is:

$ /usr/local/pypy/bin/schevo db update --app mainapp zodb://127.0.0.1:4343

Thank you,

Etienne


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