我正在配置ansible脚本来为3个节点的Rabbitmq创建HA设置，执行完整个脚本后，它将运行处理程序以重新启动Rabbitmq服务器，但无法重新启动节点。最初，当我运行脚本而不在其他节点中复制erlang cookie时，它运行良好，但是当我在其他节点中复制erlang cookie时，它没有重新启动。
任务/main.yml
---
- name: Install prerequisites
apt:
name: "{{ item }}"
update_cache: yes
state: present
with_items:
# - apt-transport-https
# - ca-certificates
# - python3-pip
- curl
- software-properties-common
#- name: packages - install erlang
# apt:
# pkg: erlang
# update_cache: yes
# cache_valid_time: 3600
# state: latest
- name: "add the official rabbitmq repository's key"
apt_key:
url: "https://www.rabbitmq.com/rabbitmq-release-signing-key.asc"
state: present
when: not rabbitmq_os_package
- name: Add RabbitMQ APT repository
apt_repository:
repo: 'deb https://dl.bintray.com/rabbitmq-erlang/debian bionic erlang-22.x'
state: present
- name: Install RabbitMQ
apt:
deb: "https://github.com/rabbitmq/rabbitmq-server/releases/download/v3.8.3/rabbitmq-server_3.8.3-1_all.deb"
- name: enable rabbitmq plugins
rabbitmq_plugin:
names: rabbitmq_management,rabbitmq_tracing,rabbitmq_federation,rabbitmq_shovel,rabbitmq_shovel_management
state: enabled
notify:
- rabbitmq restart
- name: Capturing Erlang Cookie On Master
command: "cat {{ rabbitmq_erlang_cookie_file }}"
become: true
register: "rabbitmq_erlang_cookie"
when: inventory_hostname == "rabbit-node1"
- name: Check if rabbitmq_conf_vm_memory_high_watermark is under the recommended range
fail:
msg: "The recommended vm_memory_high_watermark range is 0.4 to 0.66."
when: rabbitmq_conf_vm_memory_high_watermark < 0.4 or rabbitmq_conf_vm_memory_high_watermark > 0.66
- name: copy the rabbitmq configuration file
template:
src=rabbitmq.config.j2
dest={{ rabbitmq_config_file_path }}
owner={{ rabbitmq_config_file_owner }}
group={{ rabbitmq_config_file_group }}
mode={{ rabbitmq_config_file_mode }}
backup=yes
#- name: generate rabbitmq environment-variables file
# template:
# src=rabbitmq-env.conf.j2
# dest={{ rabbitmq_env_variables_file_path }}
# owner={{ rabbitmq_config_file_owner }}
# group={{ rabbitmq_config_file_group }}
# mode={{ rabbitmq_config_file_mode }}
# backup=yes
# when: rabbitmq_conf_env is defined
- name: alter number of system's open file if rabbitmq_system_number_open_files is set
block:
- name: check if value is under 500k
fail:
msg: "The number of open files in the system should not exceed 500K."
when: rabbitmq_system_number_open_files > 500000
- name: make sure service.d exists
file:
path: "{{ rabbitmq_service_d_path }}"
state: directory
- name: change limit of system's number of open file
template:
src: limits.conf.j2
dest: "{{ rabbitmq_service_d_path }}/limits.conf"
backup: true
when: rabbitmq_system_number_open_files is defined
- name: Capturing Erlang Cookie On Master
command: "cat {{ rabbitmq_erlang_cookie_file }}"
become: true
register: "rabbitmq_erlang_cookie"
when: inventory_hostname == "rabbit-node1"
- name: Setting Erlang Cookie Of Master on Non-Master
set_fact:
rabbitmq_erlang_cookie: "{{ hostvars['rabbit-node1']['rabbitmq_erlang_cookie']['stdout'] }}"
when: inventory_hostname != "rabbit-node1"
- name: Copy erlang cookie
template:
src: erlang.cookie.j2
dest: "{{ rabbitmq_erlang_cookie_file }}"
owner: rabbitmq
group: rabbitmq
mode: 0400
# backing up in case the need to recover
backup: yes
become: true
when: inventory_hostname != "rabbit-node1"
notify:
- rabbitmq restart
- name: ensure the users are removed
rabbitmq_user:
user={{ item }}
state=absent
with_items: "{{ rabbitmq_users_remove }}"
- name: ensure users exist
rabbitmq_user:
user: "{{ item }}"
password:
vhost: /
configure_priv: .*
read_priv: .*
write_priv: .*
tags: "{{ rabbitmq_administrator_tag }}"
state: present
with_items: "{{ rabbitmq_users }}"
- name: ensure rabbitmq server is running
service:
name: rabbitmq-server
daemon_reload: true #changed systemd conf file
state: started
这是在脚本末尾运行的处理程序文件。
handlers / main.yml
---
- name: rabbitmq restart
service:
name: rabbitmq-server
state: restarted
错误
fatal: [rabbit-node2]: FAILED! => {"changed": false, "msg": "Unable to restart service rabbitmq-server: Job for rabbitmq-server.service failed because the control process exited with error code.\nSee \"systemctl status rabbitmq-server.service\" and \"journalctl -xe\" for details.\n"}
fatal: [rabbit-node3]: FAILED! => {"changed": false, "msg": "Unable to restart service rabbitmq-server: Job for rabbitmq-server.service failed because the control process exited with error code.\nSee \"systemctl status rabbitmq-server.service\" and \"journalctl -xe\" for details.\n"}
通过检查节点中的systemctl状态，它显示以下消息：
● rabbitmq-server.service - RabbitMQ broker
Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/rabbitmq-server.service.d
└─limits.conf
Active: activating (start) since Thu 2020-04-16 09:27:18 UTC; 889ms ago
Process: 929 ExecStop=/usr/lib/rabbitmq/bin/rabbitmqctl shutdown (code=exited
status=78)
Main PID: 7865 (rabbitmq-server)
Tasks: 23 (limit: 4703)
CGroup: /system.slice/rabbitmq-server.service
├─7865 /bin/sh /usr/lib/rabbitmq/bin/rabbitmq-server
├─7981 /usr/lib/erlang/erts-10.7.1/bin/beam.smp -- -root /usr/lib/erlang -progname erl -- -home /var/lib/rabbitmq -- -pa /usr/lib/rabbitmq/lib/rabbitmq_server-3.8.3/ebin -boot start_clean -noshell -no
├─7991 /usr/lib/erlang/erts-10.7.1/bin/epmd -daemon
└─7995 erl_child_setup 65535
通过应用journalctl -xe命令，我收到以下消息：
rabbit-node2 rabbitmq-server[16137]: Crash dump is being written to: /var/log/rabbitmq/erl_crash.dump...done
rabbit-node2 systemd[1]: rabbitmq-server.service: Main process exited, code=exited, status=1/FAILURE
rabbit-node2 systemd[1]: rabbitmq-server.service: Failed with result 'exit-code'.
rabbit-node2 systemd[1]: Failed to start RabbitMQ broker.
答案 0 :(得分：0)
可以尝试以下过程：
如果上面的命令显示否。进程<5，然后继续下一步。
清空目录/ var / lib / rabbitmq / *
sudo invoke-rc.d rabbitmq-server start
ps -ef | grep兔子
现在，运行http：// localhost：15672。
注意：1）代码是在Localhost而非服务器上测试的。
2）使用以下命令启用RabbitMQ UI：rabbitmq-plugins启用rabbitmq_management