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How to fix Elasticsearch Python elasticsearch.exceptions.NotFoundError: NotFoundError(404, 'index_not_found_exception', 'no such index [node]', node, index_or_alias)

Problem:

You want to update ElasticSearch index settings in Python using code like

es_put_settings.py
es.indices.put_settings(index="node", body={
    "index.mapping.total_fields.limit": 100000
})
notfound_trace.txt
Traceback (most recent call last):
  File "estest.py", line 11, in <module>
    es.indices.put_settings(index="node", body={
  File "/usr/local/lib/python3.8/dist-packages/elasticsearch/client/utils.py", line 168, in _wrapped
    return func(*args, params=params, headers=headers, **kwargs)
  File "/usr/local/lib/python3.8/dist-packages/elasticsearch/client/indices.py", line 786, in put_settings
    return self.transport.perform_request(
  File "/usr/local/lib/python3.8/dist-packages/elasticsearch/transport.py", line 415, in perform_request
    raise e
  File "/usr/local/lib/python3.8/dist-packages/elasticsearch/transport.py", line 381, in perform_request
    status, headers_response, data = connection.perform_request(
  File "/usr/local/lib/python3.8/dist-packages/elasticsearch/connection/http_urllib3.py", line 277, in perform_request
    self._raise_error(response.status, raw_data)
  File "/usr/local/lib/python3.8/dist-packages/elasticsearch/connection/base.py", line 330, in _raise_error
    raise HTTP_EXCEPTIONS.get(status_code, TransportError)(
elasticsearch.exceptions.NotFoundError: NotFoundError(404, 'index_not_found_exception', 'no such index [node]', node, index_or_alias)

Solution

The index needs to be created first in order to be able to put settings. First, double-check if you spelled the index name correctly! You can see the index name in the exception: no such index [node] means that the index is called node

The direct way to create an index is

es_indices_create_example.txt
es.indices.create("node")

But note that this will fail if the index already exists. In order to work around this issue, I recommend to use the code from our previous post How to create ElasticSearch index if it doesn’t already exist in Python:

es_create_index_if_not_exists.py
def es_create_index_if_not_exists(es, index):
  """Create the given ElasticSearch index and ignore error if it already exists"""
  try:
    es.indices.create(index)
  except elasticsearch.exceptions.RequestError as ex:
    if ex.error == 'resource_already_exists_exception':
      pass # Index already exists. Ignore.
    else: # Other exception - raise it
      raise exnodes

and use the es_create_index_if_not_exists()  function to create your index:

create_node_index.py
es_create_index_if_not_exists(es, "node") # Creates the "node" index ; doesn't fail if it already exists
Check out similar posts by category: Databases, ElasticSearch, Python