openstack安装报错及处理
如下启动amqp服务时失败：Applying 192.168.0.109_mariadb.pp
192.168.0.109_amqp.pp: [ ERROR ]
Applying Puppet manifests [ ERROR ]
ERROR : Error appeared during Puppet run: 192.168.0.109_amqp.pp
Error: Could not start Service: Execution of '/usr/bin/systemctl start rabbitmq-server' returned 1: Job for rabbitmq-server.service failed. See 'systemctl status rabbitmq-server.service' and 'journalctl -xn' for details.
You will find full trace in log /var/tmp/packstack/20150904-125106-m9gHVs/manifests/192.168.0.109_amqp.pp.log
手动启动并查看日志：
# journalctl -f
# systemctl restart rabbitmq-server.service
Sep 04 13:48:04 node109.zte.com sshd: reverse mapping checking getaddrinfo for bogon failed - POSSIBL...TEMPT!
Sep 04 13:48:04 node109.zte.com sshd: Accepted password for root from 192.168.0.101 port 56258 ssh2
Sep 04 13:48:04 node109.zte.com systemd: Starting Session 201 of user root.
Sep 04 13:48:04 node109.zte.com systemd: Started Session 201 of user root.
Sep 04 13:48:04 node109.zte.com systemd-logind: New session 201 of user root.
Sep 04 13:48:04 node109.zte.com sshd: pam_unix(sshd:session): session opened for user root by (uid=0)
Sep 04 13:48:11 node109.zte.com systemd: Starting RabbitMQ broker...
Sep 04 13:48:11 node109.zte.com systemd: Cannot find unit for notify message of PID 12908.
Sep 04 13:48:11 node109.zte.com systemd: Cannot find unit for notify message of PID 12909.
Sep 04 13:48:11 node109.zte.com systemd: rabbitmq-server.service: Got notification message from PID 12912, but reception ... 12895
Sep 04 13:48:42 node109.zte.com rabbitmq-server: ERROR: epmd error for host node109: timeout (timed out)
Sep 04 13:48:42 node109.zte.com systemd: rabbitmq-server.service: main process exited, code=exited, status=1/FAILURE
Sep 04 13:48:42 node109.zte.com rabbitmqctl: Stopping and halting node rabbit@node109 ...
Sep 04 13:48:49 node109.zte.com rabbitmqctl: Error: unable to connect to node rabbit@node109: nodedown
Sep 04 13:48:50 node109.zte.com rabbitmqctl: DIAGNOSTICS
Sep 04 13:48:50 node109.zte.com rabbitmqctl: ===========
Sep 04 13:48:50 node109.zte.com rabbitmqctl: attempted to contact:
Sep 04 13:48:50 node109.zte.com rabbitmqctl: rabbit@node109:
Sep 04 13:48:50 node109.zte.com rabbitmqctl: * connected to epmd (port 4369) on node109
Sep 04 13:48:50 node109.zte.com rabbitmqctl: * epmd reports: node 'rabbit' not running at all
Sep 04 13:48:50 node109.zte.com rabbitmqctl: no other nodes on node109
Sep 04 13:48:50 node109.zte.com rabbitmqctl: * suggestion: start the node
Sep 04 13:48:50 node109.zte.com rabbitmqctl: current node details:
Sep 04 13:48:50 node109.zte.com rabbitmqctl: - node name: rabbitmqctl12923@node109
Sep 04 13:48:50 node109.zte.com rabbitmqctl: - home dir: /var/lib/rabbitmq
Sep 04 13:48:50 node109.zte.com rabbitmqctl: - cookie hash: Cl5CFarYxY6fT48PiBawHw==
Sep 04 13:48:50 node109.zte.com systemd: rabbitmq-server.service: control process exited, code=exited status=2
Sep 04 13:48:50 node109.zte.com systemd: Failed to start RabbitMQ broker.
Sep 04 13:48:50 node109.zte.com systemd: Unit rabbitmq-server.service entered failed state.
如上面红色标记部分，是因为连接主机node109失败了。检查/etc/hosts文件和/etc/sysconfig/network文件查看主机名设置及解析情况。在network文件中配置主机名并在hosts文件中配置相应的解析记录，然后重启ampq服务并查看日志：
# systemctl restart rabbitmq-server.service
# journalctl -f
Sep 04 13:50:23 node109.zte.com systemd: Starting RabbitMQ broker...
Sep 04 13:50:23 node109.zte.com systemd: Cannot find unit for notify message of PID 12970.
Sep 04 13:50:23 node109.zte.com systemd: Cannot find unit for notify message of PID 12971.
Sep 04 13:50:23 node109.zte.com systemd: rabbitmq-server.service: Got notification message from PID 12974, but reception ... 12957
Sep 04 13:50:24 node109.zte.com systemd: Cannot find unit for notify message of PID 12988.
Sep 04 13:50:24 node109.zte.com systemd: Cannot find unit for notify message of PID 12989.
Sep 04 13:50:24 node109.zte.com systemd: Cannot find unit for notify message of PID 12992.
Sep 04 13:50:24 node109.zte.com rabbitmq-server: RabbitMQ 3.3.5. Copyright (C) 2007-2014 GoPivotal, Inc.
Sep 04 13:50:24 node109.zte.com rabbitmq-server: #### Licensed under the MPL.See http://www.rabbitmq.com/
Sep 04 13:50:24 node109.zte.com rabbitmq-server: ####
Sep 04 13:50:24 node109.zte.com rabbitmq-server: ##########Logs: /var/log/rabbitmq/rabbit@node109.log
Sep 04 13:50:24 node109.zte.com rabbitmq-server: ######## /var/log/rabbitmq/rabbit@node109-sasl.log
Sep 04 13:50:24 node109.zte.com rabbitmq-server: ##########
Sep 04 13:50:25 node109.zte.com rabbitmq-server: Starting broker... completed with 0 plugins.
Sep 04 13:50:25 node109.zte.com systemd: Started RabbitMQ broker.
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