ProvidersMoreElasticsearchOn this pageElasticsearchElasticsearch is a distributed, RESTful search and analytics engine.
It provides a distributed, multi-tenant-capable full-text search engine with an HTTP web interface and schema-free
JSON documents.Installation and Setup​There are two ways to get started with Elasticsearch:Install Elasticsearch on your local machine via docker​Example: Run a single-node Elasticsearch instance with security disabled. This is not recommended for production use.    docker run -p 9200:9200 -e "discovery.type=single-node" -e "xpack.security.enabled=false" -e "xpack.security.http.ssl.enabled=false" docker.elastic.co/elasticsearch/elasticsearch:8.9.0Deploy Elasticsearch on Elastic Cloud​Elastic Cloud is a managed Elasticsearch service. Signup for a free trial.Install Client​pip install elasticsearchVector Store​The vector store is a simple wrapper around Elasticsearch. It provides a simple interface to store and retrieve vectors.from langchain.vectorstores import ElasticsearchStorefrom langchain.document_loaders import TextLoaderfrom langchain.text_splitter import CharacterTextSplitterloader = TextLoader("./state_of_the_union.txt")documents = loader.load()text_splitter = CharacterTextSplitter(chunk_size=500, chunk_overlap=0)docs = text_splitter.split_documents(documents)embeddings = OpenAIEmbeddings()db = ElasticsearchStore.from_documents(    docs, embeddings, es_url="http://localhost:9200", index_name="test-basic",)db.client.indices.refresh(index="test-basic")query = "What did the president say about Ketanji Brown Jackson"results = db.similarity_search(query)PreviousDuckDBNextEpsillaInstallation and SetupInstall ClientVector Store