如何解决 django HayStack、elasticsearch update_index 错误？

Question

我使用 django web 框架集成了 elasticsearch 和 haystack。现在我想删除不存在的 使用 call_command('update_index --remove') 函数从 Elasticsearch 索引中获取数据。

我的问题是当我运行 update_index --remove 时出现以下错误：

Indexing 6 notes
[ERROR/MainProcess] Error updating core using default 
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/haystack/management/commands/update_index.py", 
line 230, in handle
self.update_backend(label, using)
File "/usr/local/lib/python3.6/dist-packages/haystack/management/commands/update_index.py", 
line 308, in update_backend
index_total = SearchQuerySet(using=backend.connection_alias).models(model).count()
File "/usr/local/lib/python3.6/dist-packages/haystack/query.py", line 522, in count
return len(self)
File "/usr/local/lib/python3.6/dist-packages/haystack/query.py", line 86, in __len__
self._result_count = self.query.get_count()
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/__init__.py", line 619, in 
get_count
self.run()
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/elasticsearch_backend.py", 
line 951, in run
results = self.backend.search(final_query, **search_kwargs)
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/__init__.py", line 33, in 
wrapper
return func(obj, query_string, *args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/elasticsearch_backend.py", 
line 524, in search
_source=True)
File "/usr/local/lib/python3.6/dist-packages/elasticsearch/client/utils.py", line 84, in 
_wrapped
return func(*args, params=params, **kwargs)
TypeError: search() got an unexpected keyword argument 'doc_type'
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.6/dist-packages/django/core/management/__init__.py", line 381, 
in execute_from_command_line
utility.execute()
File "/usr/local/lib/python3.6/dist-packages/django/core/management/__init__.py", line 375, 
in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.6/dist-packages/django/core/management/base.py", line 316, in 
run_from_argv
self.execute(*args, **cmd_options)
File "/usr/local/lib/python3.6/dist-packages/django/core/management/base.py", line 353, in 
execute
output = self.handle(*args, **options)
File "/usr/local/lib/python3.6/dist-packages/haystack/management/commands/update_index.py", 
line 230, in handle
self.update_backend(label, using)
File "/usr/local/lib/python3.6/dist-packages/haystack/management/commands/update_index.py", 
line 308, in update_backend
index_total = SearchQuerySet(using=backend.connection_alias).models(model).count()
File "/usr/local/lib/python3.6/dist-packages/haystack/query.py", line 522, in count
return len(self)
File "/usr/local/lib/python3.6/dist-packages/haystack/query.py", line 86, in __len__
self._result_count = self.query.get_count()
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/__init__.py", line 619, in 
get_count
self.run()
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/elasticsearch_backend.py", 
line 951, in run
results = self.backend.search(final_query, **search_kwargs)
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/__init__.py", line 33, in 
wrapper
return func(obj, query_string, *args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/haystack/backends/elasticsearch_backend.py", 
line 524, in search
_source=True)
File "/usr/local/lib/python3.6/dist-packages/elasticsearch/client/utils.py", line 84, in 
_wrapped
return func(*args, params=params, **kwargs)
TypeError: search() got an unexpected keyword argument 'doc_type'

我正在使用：
django-haystack==2.8.1
弹性搜索==7.1.0
elasticsearch-7.4.0 => 服务器

注意：
不推荐

HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor'

这种方法不适合我。我没有使用 django 进行数据插入。仅用于过滤和删除目的。

update_index --age=24也有同样的问题。

Answer 1

我认为问题在于您使用的是 Elasticsearch 7，而Haystack only supports versions up to 5：

Haystack 目前仅支持 Elasticsearch 1.x 和 2.x。尚不支持 Elasticsearch 5.x，如果您需要帮助，请参阅 #1383。

我看到两个选项：

• 保留 Haystack 并使用 Elasticsearch 5 服务器，
• 放弃 Haystack 并使用“vanilla”Elasticsearch python client 并手动执行查询（也可以执行纯 HTTP 请求）。

您看到的错误：

TypeError: search() 得到了一个意外的关键字参数“doc_type”

与 Elasticsearch 7 中删除了文档类型这一事实有关。