Unable to get OpenSearch dashboard by running OpenSearch docker compose

Question

I am a windows user. I installed Windows Subsystem for Linux [wsl2] and then installed docker using it. Then I tried to get started with OpenSearch so I followed the documentation in the given link https://opensearch.org/downloads.html and run docker-compose up, In the shell, I am getting an error message like

opensearch-dashboards | {"type":"log","@timestamp":"2022-01-18T16:31:18Z","tags":["error","opensearch","data"],"pid":1,"message":"[ConnectionError]: getaddrinfo EAI_AGAIN opensearch-node1 opensearch-node1:9200"}

In the port http://localhost:5601/ I am getting messages like

OpenSearch Dashboards server is not ready yet

I also changed resources preference for memory to 5GB in docker-desktop but it still doesn't work. Can somebody help me with this?

Answer 1

After 5 days having issues with opensearch I've found something working fine for me:

• Set docker memory to 4GB
• And docker vm.max_map_count = 262144

Then I use previous versions of opensearch because the latest does not seems stable:

• opensearchproject/opensearch:1.2.3
• opensearchproject/opensearch-dashboards:1.1.0
• opensearchproject/logstash-oss-with-opensearch-output-plugin:7.16.2

Here is my docker-compose.yml file:

version: '3'
services:
  opensearch-node1A:
    image: opensearchproject/opensearch:1.2.3
    container_name: opensearch-node1A
    environment:
      - cluster.name=opensearch-cluster
      - node.name=opensearch-node1A
      - discovery.seed_hosts=opensearch-node1A,opensearch-node2A
      - cluster.initial_master_nodes=opensearch-node1A,opensearch-node2A
      - bootstrap.memory_lock=true # along with the memlock settings below, disables swapping
      - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536 # maximum number of open files for the OpenSearch user, set to at least 65536 on modern systems
        hard: 65536
    volumes:
      - opensearch-data1:/usr/share/opensearch/data
    ports:
      - 9200:9200
      - 9600:9600 # required for Performance Analyzer
    networks:
      - opensearch-net
  opensearch-node2A:
    image: opensearchproject/opensearch:1.2.3
    container_name: opensearch-node2A
    environment:
      - cluster.name=opensearch-cluster
      - node.name=opensearch-node2A
      - discovery.seed_hosts=opensearch-node1A,opensearch-node2A
      - cluster.initial_master_nodes=opensearch-node1A,opensearch-node2A
      - bootstrap.memory_lock=true
      - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536
        hard: 65536
    volumes:
      - opensearch-data2:/usr/share/opensearch/data
    networks:
      - opensearch-net
  opensearch-dashboardsA:
    image: opensearchproject/opensearch-dashboards:1.1.0
    container_name: opensearch-dashboardsA
    ports:
      - 5601:5601
    expose:
      - "5601"
    environment:
      OPENSEARCH_HOSTS: '["https://opensearch-node1A:9200","https://opensearch-node2A:9200"]'
    networks:
      - opensearch-net
  logstash-with-plugin:
    image: opensearchproject/logstash-oss-with-opensearch-output-plugin:7.16.2
    container_name: logstash-with-plugin
    networks:
      - opensearch-net

volumes:
  opensearch-data1:
  opensearch-data2:

networks:
  opensearch-net:

Answer 2

I had the same error message when opening "http://localhost:5601/" while testing opensearch and opensearch dasboard locally using Docker in Windows 10:

• OpenSearch Dashboards server is not ready yet
• opensearch-dashboards | {"type":"log","@timestamp":"2022-02-10T12:29:35Z","tags":["error","opensearch","data"],"pid":1,"message":"[ConnectionError]: getaddrinfo EAI_AGAIN opensearch-node1 opensearch-node1:9200"}

But when looking into the log I also found this other error:

• opensearch-node1 | [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

The 3 part solution working for me was:

Part 1

On each opensearch nodes update the file:

/usr/share/opensearch/config/opensearch.yml

And add line:

plugins.security.disabled: true

Before the security plugins:

cks. "Single-node" mode disables them again.
#discovery.type: single-node

plugins.security.disabled: true

######## Start OpenSearch Security Demo Configuration ########
# WARNING: revise all the lines below before you go into production
plugins.security.ssl.transport.pemcert_filepath: esnode.pem

I found the information on opensearch official documentation

Part 2

Setting allocated memory for docker desktop to 4GB into .wslconfig more information here: opendistrocommunity discussion stackoverflow aloocate memory

Make sure your allocated memory is well set up (you have to restart docker desktop) with this command: docker info and check the line "Total Memory" it should be set to 4GB (approximately, in my case it has be set to 3.84GiB)

Part 3

And also increase vm.max_map_count:

• open powershell
• wsl -d docker-desktop
• echo "vm.max_map_count = 262144" > /etc/sysctl.d/99-docker-desktop.conf

The info was founded here on github discussion

Answer 3

I had the same issue with my Opensearch-dashboards instance installed on VM without Docker usage. The problem was caused by wrong setting for connection to search engine in the opensearch-dashboards.yml file. I mixed up https and http protocols here (there was mismatch between settings of opensearch and opensearch-dashboards):

opensearch.hosts: [https://localhost:9200]

Answer 4

Incase if this helps some1,

I had no luck following official doc (especially with multi-nodes) and ended up setting it up manually with my limited Docker knowledge.

Below is my setup

• WSL2:Alpine#3.17.0 on Win 11
• Standard Docker Engine + Cli setup on WLS2:Alpine

opensearch:1.3.8 (single node) server setup

• run opensearch single node :

  docker run -d -p 9200:9200 -p 9600:9600 -e "discovery.type=single-node" opensearchproject/opensearch:1.3.8

• ensure its up & running

  docker ps

• ensure you are able to hit api with login creds,

defaults are https://localhost:9200 uname: admin pass: admin

• inspect container to get Gateway :

  docker inspect <containerName> or <containerId> to grab NetworkSettings.Gateway property, note it down somewhere, will be required to setup opensearch-dashboard. For me it was something like 172.17.117.1

opensearch-dashboard:1.3.8 setup

• create a custom custom-opensearch-dashboards.yml file somewhere in your WLS2 home directory with below contents

server.host: '0.0.0.0'
server.port: 5601
opensearch.hosts: [https://yourGatewayIpHere:9200]
opensearch.ssl.verificationMode: none
opensearch.username: uiuser1
opensearch.password: uipass1
opensearch.requestHeadersWhitelist: [authorization, securitytenant]
opensearch_security.multitenancy.enabled: false
opensearch_security.multitenancy.tenants.preferred: [Private, Global]
opensearch_security.readonly_mode.roles: [kibana_read_only]
opensearch_security.cookie.secure: false

• pull opensearch-dashboards image :

  docker pull opensearchproject/opensearch-dashboards:1.3.8

• run opensearch-dashboards with customized config:

  docker run -d -p 5601:5601 -v /fullPath/of/custom-opensearch-dashboards.yml:/usr/share/opensearch-dashboards/config/opensearch_dashboards.yml

• ensure its up & running

  docker ps

• on your browser see if you can load http://localhost:5601/ and log in with opensearch.username opensearch.password creds

Other useful Docker commands

• view logs

  docker logs <containerName> or <containerId>

• sh to container to check config or ping required apis :

  docker exec -it <containerName> or <containerId> sh

Good luck !