python - elasticsearch映射没有JSON对象错误

Question

我正在尝试使用python脚本csv2es将数据加载到elasticsearch 5。

传递给csv2es的参数引用具有elasticsearch映射的json文件。在加载下面的映射文件时:

{
"dynamic": "true",
"properties": {
    "username": {"type": “text”},
    "date": {"type": "date", "format" : "yyyy-MM-dd HH:mm"},
    "retweets": {"type": “integer”},
    "favourites": {"type": “integer”},
    "text": {"type": “text”},
    "geo": {"type": “keyword”},
    "mentions": {"type": “text”},
    "hashtags": {"type": “text”},
    "id": {"type": “keyword”},
    "permalink": {"type": “keyword”}
    }
}

这将引发以下错误:

Applying mapping from: csv2es_mappings.json
Traceback (most recent call last):
  File "/usr/local/bin/csv2es", line 11, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 664, in     __call__
return self.main(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 644, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 837, in     invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python2.7/site-packages/click/core.py", line 464, in invoke
return callback(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/csv2es.py", line 206, in cli
mapping = json.loads(f.read())
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 382, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

但是，当我加载以下文件时，将运行数据加载。根据ES5映射的指导，我使用的是 text和 keyword而不是 string-使用 string时，字段未正确提取并建立索引。

{
"dynamic": "true",
"properties": {
    "username": {"type": "string"},
    "date": {"type": "date", "format" : "yyyy-MM-dd HH:mm"},
    "retweets": {"type": "string"},
    "favourites": {"type": "string"},
    "text": {"type": "string"},
    "geo": {"type": "string"},
    "mentions": {"type": "string"},
    "hashtags": {"type": "string"},
    "id": {"type": "string"},
    "permalink": {"type": "string"}
    }
}

Answer 1

afaik，该错误表示您的json数据无效。
在“text”中，多数民众赞成在“ left double quotation mark而不是" quotation mark包围。

升级python，以便在解码json字符串或使用simplejson库时可以看到可读错误。

看到这个:Displaying better error message than "No JSON object could be decoded"