python和elastic搜索更新错误

Question

今天我将弹性搜索从1.6更新到2.1，因为1.6是易受攻击的版本，更新后我的网站无法工作，给出这个错误：

Traceback (most recent call last):
  File "manage.py", line 8, in <module>
    from app import app, db
  File "/opt/project/app/__init__.py", line 30, in <module>
    es.create_index(app.config['ELASTICSEARCH_INDEX'])
  File "/usr/local/lib/python2.7/dist-packages/pyelasticsearch/client.py", line 93, in decorate
    return func(*args, query_params=query_params, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/pyelasticsearch/client.py", line 1033, in create_index
    query_params=query_params)
  File "/usr/local/lib/python2.7/dist-packages/pyelasticsearch/client.py", line 285, in send_request
    self._raise_exception(status, error_message)
  File "/usr/local/lib/python2.7/dist-packages/pyelasticsearch/client.py", line 299, in _raise_exception
    raise error_class(status, error_message)
pyelasticsearch.exceptions.ElasticHttpError: (400, u'index_already_exists_exception')
make: *** [run] Error 1

代码是这样的：

redis = Redis()

es = ElasticSearch(app.config['ELASTICSEARCH_URI'])
try:
    es.create_index(app.config['ELASTICSEARCH_INDEX'])
except IndexAlreadyExistsError, e:
    pass

哪里错了？这个新版本有什么新功能？

Answer 1

您将看到以下错误：index_already_exists_exception

这意味着您正在尝试创建一个已经存在的索引。第二次运行程序时，您需要先使用delete your index，或者只在程序不存在时才创建它。

Answer 2

您已经使用IndexAlreadyExistsError处理了异常。尝试使用TransportError来处理异常。

您还可以添加一个检查，如：

exist = es.indices.exists(index_name)
if not exist:
    es.create_index(app.config['ELASTICSEARCH_INDEX'])