Multiple simultaneous requests to same host for same task give "Data could not be sent to remote host IP. Make sure this host can be reached over ssh

user_5761011 0
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Scenario

I run the following tasks in two terminals at the same time

  • first one succeeds
  • second one gives above error

So we are getting the above error while running the ansible-playbook for multiple sessions at the same time

Data could not be sent to remote host [internal ip]. Make sure this host can be reached over ssh

The piece of code being executed by task which fails is

- name: run docker container
  docker_container:
    name: "{{ container_name }}"
    image: "organization/{{ app_name }}:{{ docker_image_version }}"
#    command: "{{ adhoc_command }}"
    command: "/bin/sh /data/run-command.sh"
    state: started
    recreate: yes
    capabilities:
      - sys_time
    cap_drop:
      - all
    privileged: true
    cleanup: true
    detach: false
    network_mode: host
    env_file: "{{ adhock_data_path }}/{{ app_name }}/{{ md5suffix }}/.env"
    volumes:
      - "{{ adhock_data_path }}/{{ app_name }}/{{ md5suffix }}:/data:rw"

I suspect it is happening as we are trying to do some heavy tasks in the container at the same time.
I was thinking if there was some solution to delay the connection as well with something like the following

  wait_for_connection:
    delay: 30
    timeout: 300

But we have the same issue when both the tasks are being executed simultaneously. Any help would be appreciated.

If required, I can provide additional information as well.

ansible-2.x ansible
1 Answers

Try updating your ansible.cfg with the value retries = 5 which will allow your playbook to retry connecting to the host 5 times with retry delay of 1s, 2s, 4s and etc. This will be more explanatory on your ansible.cfg file itself. Check once.

user_114430320
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