- hosts: A,B
  gather_facts: false
  tasks:
    - block:
        - command: echo
          notify:
            - handler1
            - handler2

        - fail:
          when: inventory_hostname == "B"

        - meta: flush_handlers
      always:
        - name: always
          debug:
            msg: always
  handlers:
    - name: handler1
      debug:
        msg: handler1

    - name: handler2
      debug:
        msg: handler2