解决Whoosh IndexingError:Writer已关闭

时间:2017-05-04 02:56:17

标签: python indexing file-writing whoosh readwritelock

python whoosh IndexingError when interrupted不同,我没有中断任何提交,但在创建新索引时出现IndexingError

import uuid
import os

from whoosh.index import create_in
from whoosh.fields import *
from whoosh.qparser import QueryParser

schema = Schema(hashID=TEXT(stored=True))
indexdir = 'foobar'
if not os.path.exists(indexdir):
    os.mkdir(indexdir)

ix = create_in(indexdir, schema)

with ix.writer() as writer:
    writer.add_document(hashID=str(uuid.uuid4()))
    writer.commit()

错误:

---------------------------------------------------------------------------
IndexingError                             Traceback (most recent call last)
<ipython-input-1-85a42bebdce8> in <module>()
     15 with ix.writer() as writer:
     16     writer.add_document(hashID=str(uuid.uuid4()))
---> 17     writer.commit()

/usr/local/lib/python3.5/site-packages/whoosh/writing.py in __exit__(self, exc_type, exc_val, exc_tb)
    208             self.cancel()
    209         else:
--> 210             self.commit()
    211 
    212     def group(self):

/usr/local/lib/python3.5/site-packages/whoosh/writing.py in commit(self, mergetype, optimize, merge)
    918         """
    919 
--> 920         self._check_state()
    921         # Merge old segments if necessary
    922         finalsegments = self._merge_segments(mergetype, optimize, merge)

/usr/local/lib/python3.5/site-packages/whoosh/writing.py in _check_state(self)
    553     def _check_state(self):
    554         if self.is_closed:
--> 555             raise IndexingError("This writer is closed")
    556 
    557     def _setup_doc_offsets(self):

IndexingError: This writer is closed

作者应该在上下文范围内,所以我不确定为什么它会在新创建的时候关闭。 如何解决新索引的IndexingError?

1 个答案:

答案 0 :(得分:2)

writer.commit()保存更改并关闭作者。

然后在语句结束时,with ix.writer() as writer:尝试关闭已经关闭但不存在的作者。

因此,您的with语句相当于:

try:
    writer = ix.writer()
    writer.add_document(hashID=str(uuid.uuid4()))
    writer.commit()
finally:
    writer.commit()

作为一种解决方案,您是否在writer.commit()语句中省略with,或者在每次要提交时都删除with语句并重新创建writer