Elasticsearch With Haystack -Initial connection to Elasticsearch failed

[sh-rashtchi]

Hi

I am trying to run Chapter 7 to learn about Haystack for QA:

I am using Jupyter Notebook which is connected to my GCP VM : Debian GNU/Linux 9, Tesla V100
I did install debian version
but facing the following error : ConnectionError: Initial connection to Elasticsearch failed. Make sure you run an Elasticsearch instance at [{'host': 'localhost', 'port': 9200}] and that it has finished the initial ramp up (can take > 30s).

!wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.1.2-linux-x86_64.tar.gz
!wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.1.2-linux-x86_64.tar.gz.sha512
!shasum -a 512 -c elasticsearch-8.1.2-linux-x86_64.tar.gz.sha512
!tar -xzf elasticsearch-8.1.2-linux-x86_64.tar.gz
!cd elasticsearch-8.1.2/
!pip install pymilvus
import pymilvus
import os
from subprocess import Popen, PIPE, STDOUT

!chown -R daemon:daemon elasticsearch-8.1.2
es_server = Popen(args=[‘elasticsearch-8.1.2/bin/elasticsearch’])
!sleep 30

from haystack.document_store.elasticsearch import ElasticsearchDocumentStore

#document_store = ElasticsearchDocumentStore(host=‘localhost’, port= 9201, username=’’, password=’’)
document_store = ElasticsearchDocumentStore(return_embedding=True)

I would appreciate your support on this.

Shabnam

[Ceiwh]

same problem here! I wonder if you have found a solution already?

[Dakan]

Hi! the solution is launch ES:

from haystack.utils import launch_es
launch_es()

Before launching ES, we need to install docker to run ES locally, here the link to install docker
After Docker installed, we need to change permission to use it as $USER:

sudo usermod -aG docker $USER
sudo reboot

Thats all:)

[jonghwanbaek1]

Hi,

After launch_es(), I saw the following error messages.
Can you help me for this problems.

Of course, I changed username using ‘usermod’

TypeError: create() got an unexpected keyword argument ‘mappings’

#curl -X GET “localhost:9200/?pretty”

{
“name” : “ac91bb8c9894”,
“cluster_name” : “docker-cluster”,
“cluster_uuid” : “Zb5y5OaSQtGIuBVB-I3POQ”,
“version” : {
“number” : “7.17.6”,
“build_flavor” : “default”,
“build_type” : “docker”,
“build_hash” : “f65e9d338dc1d07b642e14a27f338990148ee5b6”,
“build_date” : “2022-08-23T11:08:48.893373482Z”,
“build_snapshot” : false,
“lucene_version” : “8.11.1”,
“minimum_wire_compatibility_version” : “6.8.0”,
“minimum_index_compatibility_version” : “6.0.0-beta1”
},
“tagline” : “You Know, for Search”
}

Thanks a lot in advance.