Может кто-нибудь помочь мне с этой странной ошибкой, которую я получаю при добавлении нового документа в индекс Whoosh?
Вот код:
def add_to_index(self, doc):
ix = index.open_dir(self.index_dir)
writer = AsyncWriter(ix) # use async writer to prevent write lock errors
writer.add_document(**self.get_doc_args(doc))
writer.commit()
def get_doc_args(self, doc):
return {
'id': u""+str(doc['id']),
'org': doc['org__id'],
'created': doc['created_date'],
'date': doc['received_date'],
'from_addr': doc['from_addr'],
'subject': doc['subject'],
'body': doc['messagebody__cleaned_message']
}
Я получаю следующую ошибку:
TypeError('ord() expected a character, but string of length 0 found',)
Traceback (most recent call last):
File "/usr/local/lib/python2.6/dist-packages/celery/execute/trace.py", line 36, in trace
return cls(states.SUCCESS, retval=fun(*args, **kwargs))
File "/usr/local/lib/python2.6/dist-packages/celery/app/task/__init__.py", line 232, in __call__
return self.run(*args, **kwargs)
File "/usr/local/lib/python2.6/dist-packages/celery/app/__init__.py", line 172, in run
return fun(*args, **kwargs)
File "/mnt/deploy/prod/chorus/src/chorus/../chorus/search/__init__.py", line 131, in index_message
MessageSearcher().add_to_index(message)
File "/mnt/deploy/prod/chorus/src/chorus/../chorus/search/__init__.py", line 29, in add_to_index
writer.commit()
File "/usr/local/lib/python2.6/dist-packages/whoosh/writing.py", line 423, in commit
self.writer.commit(*args, **kwargs)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filewriting.py", line 501, in commit
new_segments = mergetype(self, self.segments)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filewriting.py", line 78, in MERGE_SMALL
reader = SegmentReader(writer.storage, writer.schema, seg)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filereading.py", line 63, in __init__
self.termsindex = TermIndexReader(tf)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filetables.py", line 590, in __init__
super(TermIndexReader, self).__init__(dbfile)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filetables.py", line 502, in __init__
OrderedHashReader.__init__(self, dbfile)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filetables.py", line 379, in __init__
HashReader.__init__(self, dbfile)
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/filetables.py", line 187, in __init__
self.hashtype = dbfile.read_byte()
File "/usr/local/lib/python2.6/dist-packages/whoosh/filedb/structfile.py", line 219, in read_byte
return ord(self.file.read(1))
Странно, тот же самый код, использующий стандартную программу записи (т.е. не AsyncWriter), работает просто отлично. Что мне здесь не хватает? Обратите внимание, что в производстве я должен использовать AsyncWriter, чтобы избежать LockErrors.