Exception in thread "main" BindTransportException[Failed to bind to [9300-9400]]; nested: ChannelException[Failed to bind to: /167.99.56.190:9400]; when running on digital ocean cloud server

Elastic Stack Elasticsearch
1

I want to host my multi-container docker application and elasticsearch is one of the service in the container. I use docker-compose.yml file to host it in digital ocean cloud server 2GB Memory.

I am just trying to host a single node to production, and I am not sure if it is possible or not.
I encounter into problem for binding error, not able to bind network.bind_host on digital ocean IP address to the elasticsearch.yml

Here is my elasticsearch.yml file

# path:
# data: /var/data/elasticsearch
# logs: /var/log/elasticsearch
# plugins: /data/plugins
# work: /data/work

# Cluster information
cluster.name: production
node.name: mooc-search-docker-single-node
# xpack.security.enabled: false
# xpack.license.self_generated.type: basic
# xpack.security.transport.ssl.enabled: true
# xpack.security.transport.ssl.verification_mode: certificate
# xpack.security.transport.ssl.key: /home/es/config/x-pack/node01.key
# xpack.security.transport.ssl.certificate: /home/es/config/x-pack/node01.crt
# xpack.security.transport.ssl.certificate_authorities: [ "/home/es/config/x-pack/ca.crt" ]


# Security settings
# script.disable_dynamic: true
# script.inline: on
# script.indexed: on

# Index settings
# action.auto_create_index: false

# network settings
network.host: _local_
network.bind_host: 167.99.56.190 ** this causes error if I put this IP address but if I put 0 then it works but I'm not able to access from my local machine**
# network.tcp.reuse_address: true
http.port: 9200

http.cors.enabled: true
http.cors.allow-origin: "*"


# Turn off swap to get a big speed increase.  This will prevent the ES server
# from swapping memory on the node. 
https://www.elastic.co/guide/en/elasticsearch/reference/current/setup- 
configuration.html#setup-configuration-memory
bootstrap.memory_lock: true

# In order to communicate and to form a cluster with nodes on other servers,
# your node will need to bind to a non-loopback address. While there are many
# network settings, usually all you need to configure is network.host:
# network.host: 192.168.1.10

# Disable deleting all indices from the api.
action.disable_delete_all_indices: true

# shield.transport.filter.enabled: false
# shield.http.filter.enabled: true
# shield.transport.filter.allow: [ "192.168.0.1", "192.168.0.2", "192.168.0.3", "192.168.0.4", 
"167.99.56.190" ]
# shield.transport.filter.deny: _all



# When the moment comes to form a cluster with nodes on other servers, you have
# to provide a seed list of other nodes in the cluster that are likely to be live
# and contactable
discovery.zen.ping.unicast.hosts:
  - 192.168.1.10:9300
  - 192.168.1.11

# prevent data loss 
discovery.zen.minimum_master_nodes: 1 #


# indices.cluster.send_refresh_mapping: false />

This is my Dockerfile for elasticsearch:
FROM docker.elastic.co/elasticsearch/elasticsearch:6.2.2
COPY --chown=elasticsearch:elasticsearch elasticsearch.yml /usr/share/elasticsearch/config/

Lastly, this is the error log:
Exception in thread "main" BindTransportException[Failed to bind to [9300-9400]];
nested: ChannelException[Failed to bind to: /167.99.56.190:9400]; nested:
BindException[Cannot assign requested address];
Likely root cause: java.net.BindException: Cannot assign requested address
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at

  org.jboss.netty.channel.socket.nio.NioServerBoss$RegisterTask.run(NioServerBoss.java:193)
	    at 
  
  org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:391)
	    at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:315)
	at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
	at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
	at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

All I want is to be able to let elasticsearch service to be access by other container, such as the search-services.

Thank you so much!

2

What happen if you don't set at all network.bind_host?

3

Hi David,

If I did not set the network.bind_host it worked perfectly, but not able to access from outside. However, later I figure that I was using docker-compose run instead of docker-compose up. Therefore, I am not able to call the IP address of the current machine, as the elasticsearch instance is not really up.

I configure network.host to digital ocean IP address, and network.bind_host to 0.0.0.0.

I thought the network.bind_host is to set elastic instance accessible from outside. Since the doc said that A node can bind to multiple interfaces, e.g. two network cards, or a site-local address and a local address.

5

What does your docker-compose file look like?

6

This is what it looks like.

version: '3'

services:
  get-course-services:
    container_name: courses-db
    image: edwardhuang/mooc_search:courses-db # youruser/repo:tag
    build:
      context: ./Services/GetCourseServices
    env_file:
      - ./Services/GetCourseServices/.env
    ports:
      - "5433:5432"
    healthcheck:
      test: ["CMD","curl","-f","http://localhost || exit 1"]
    # command: 'done'

  search-services: #node.js app for backend application logic
    container_name: search-services
    image: edwardhuang/mooc_search:search-services
    build:
      context: ./Services/SearchServices
    ports:
      - "3000:3000" # expose API port
      - "9229:9229" # Expose node process debug port (disable in production)
    # deploy:
    #   replicas: 5
    #   resources:
    #     limits:
    #       cpus: "0.1"
    #       memory: 50M
    #   restart_policy:
    #     condition: on-failure
    # volumes: # Attach local data directory to persist(save) data
      # - "./Services/SearchServices:/usr/src/app"
      # - "./Services/GetCourseServices/data:/usr/src/app/data" # your hostFilePath:containerFilePath
      # - "./Services/SearchServices/package.json:/usr/src/package.json"
    depends_on: # tell docker compose to also starts other services if this services is started
      - elasticsearch
      - get-course-services
    environment: # Set ENV vars
      - NODE_ENV=local
      - ES_HOST=elasticsearch
      - PORT=3000
      - jsonlocFile=../data/course.json
      - jsonTestFile=../data/course_test.json


  web-services: # Nginx server for frontend and backend is express
    container_name: web-services
    image: edwardhuang/mooc_search:nginx
    build: ./Services/WebServices
    # deploy:
    #   replicas: 5
    #   resources:
    #     limits:
    #       cpus: "0.1"
    #       memory: 50M
    #   restart_policy:
    #     condition: on-failure
    # volumes: #Serve local public dir
    #   - ./Services/WebServices/public:/usr/share/nginx/html
    ports:
      - "8080:80" # forward frontend side for localhost:8080
#   visualizer:
#     image: dockersamples/visualizer:stable
#     ports:
#       - "5000:5080"
#     volumes:
#       - "/var/run/docker.sock:/var/run/docker.sock"
#     deploy:
#       placement:
#         constraints: [node.role == manager]
#
  elasticsearch: # elasticsearch instance
    container_name: esSearch
    image: edwardhuang/mooc_search:es-image
    build:
      context: ./config/production
    volumes: # Persist es data in the separate "esdata" volume
      # - ./config:/usr/share/elasticsearch/config
      - esdata:/usr/share/elasticsearch/data
    environment:
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
      - discovery.type=single-node
    # control the limits for JVM mlock all
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536
        hard: 65536
    cap_add:
      - IPC_LOCK
    ports: #expose elasticsearch ports
      - "9300:9300"
      - "9200:9200"

volumes: # to share data between containers
    esdata:

It was the misconception but once I put docker-compose upI get it to work now. this thread can be close.

Thank you so much!

7

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