不多说，直接上干货！
========================== Creating target directory... ========================== Command start time 2018-07-26 13:16:52 Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:52 ========================== Copying ambari sudo script... ========================== Command start time 2018-07-26 13:16:52 scp /var/lib/ambari-server/ambari-sudo.sh host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:53 ========================== Copying common functions script... ========================== Command start time 2018-07-26 13:16:53 scp /usr/lib/ambari-server/lib/ambari_commons host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:53 ========================== Copying create-python-wrap script... ========================== Command start time 2018-07-26 13:16:53 scp /var/lib/ambari-server/create-python-wrap.sh host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:53 ========================== Copying OS type check script... ========================== Command start time 2018-07-26 13:16:53 scp /usr/lib/ambari-server/lib/ambari_server/os_check_type.py host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:53 ========================== Running create-python-wrap script... ========================== Command start time 2018-07-26 13:16:53 Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:53 ========================== Running OS type check... ========================== Command start time 2018-07-26 13:16:53 Cluster primary/cluster OS family is redhat7 and local/current OS family is redhat7 Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:54 ========================== Checking 'sudo' package on remote host... ========================== Command start time 2018-07-26 13:16:54 Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:54 ========================== Copying repo file to 'tmp' folder... ========================== Command start time 2018-07-26 13:16:54 scp /etc/yum.repos.d/ambari.repo host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:54 ========================== Moving file to repo dir... ========================== Command start time 2018-07-26 13:16:54 Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:54 ========================== Changing permissions for ambari.repo... ========================== Command start time 2018-07-26 13:16:54 Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:54 ========================== Copying setup script file... ========================== Command start time 2018-07-26 13:16:54 scp /usr/lib/ambari-server/lib/ambari_server/setupAgent.py host=cetc12, exitcode=0 Command end time 2018-07-26 13:16:55 ========================== Running setup agent script... ========================== Command start time 2018-07-26 13:16:55 ("INFO 2018-07-26 13:17:06,791 HeartbeatHandlers.py:116 - Stop event received INFO 2018-07-26 13:17:06,792 NetUtil.py:130 - Stop event received INFO 2018-07-26 13:17:06,792 ExitHelper.py:56 - Performing cleanup before exiting... INFO 2018-07-26 13:17:06,792 ExitHelper.py:70 - Cleanup finished, exiting with code:0 INFO 2018-07-26 13:17:09,636 main.py:285 - Agent died gracefully, exiting. INFO 2018-07-26 13:17:09,637 ExitHelper.py:56 - Performing cleanup before exiting... INFO 2018-07-26 13:17:10,223 main.py:147 - loglevel=logging.INFO INFO 2018-07-26 13:17:10,224 main.py:147 - loglevel=logging.INFO INFO 2018-07-26 13:17:10,224 main.py:147 - loglevel=logging.INFO INFO 2018-07-26 13:17:10,225 DataCleaner.py:39 - Data cleanup thread started INFO 2018-07-26 13:17:10,227 DataCleaner.py:120 - Data cleanup started INFO 2018-07-26 13:17:10,228 DataCleaner.py:122 - Data cleanup finished INFO 2018-07-26 13:17:10,228 hostname.py:67 - agent:hostname_script configuration not defined thus read hostname 'cetc12' using socket.getfqdn(). INFO 2018-07-26 13:17:10,331 PingPortListener.py:50 - Ping port listener started on port: 8670 INFO 2018-07-26 13:17:10,334 main.py:439 - Connecting to Ambari server at https://cetc13:8440 (172.10.10.173) INFO 2018-07-26 13:17:10,335 NetUtil.py:70 - Connecting to https://cetc13:8440/ca ERROR 2018-07-26 13:17:10,340 NetUtil.py:96 - EOF occurred in violation of protocol (_ssl.c:579) ERROR 2018-07-26 13:17:10,340 NetUtil.py:97 - SSLError: Failed to connect. Please check openssl library versions. Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details. WARNING 2018-07-26 13:17:10,341 NetUtil.py:124 - Server at https://cetc13:8440 is not reachable, sleeping for 10 seconds... ", None) ("INFO 2018-07-26 13:17:06,791 HeartbeatHandlers.py:116 - Stop event received INFO 2018-07-26 13:17:06,792 NetUtil.py:130 - Stop event received INFO 2018-07-26 13:17:06,792 ExitHelper.py:56 - Performing cleanup before exiting... INFO 2018-07-26 13:17:06,792 ExitHelper.py:70 - Cleanup finished, exiting with code:0 INFO 2018-07-26 13:17:09,636 main.py:285 - Agent died gracefully, exiting. INFO 2018-07-26 13:17:09,637 ExitHelper.py:56 - Performing cleanup before exiting... INFO 2018-07-26 13:17:10,223 main.py:147 - loglevel=logging.INFO INFO 2018-07-26 13:17:10,224 main.py:147 - loglevel=logging.INFO INFO 2018-07-26 13:17:10,224 main.py:147 - loglevel=logging.INFO INFO 2018-07-26 13:17:10,225 DataCleaner.py:39 - Data cleanup thread started INFO 2018-07-26 13:17:10,227 DataCleaner.py:120 - Data cleanup started INFO 2018-07-26 13:17:10,228 DataCleaner.py:122 - Data cleanup finished INFO 2018-07-26 13:17:10,228 hostname.py:67 - agent:hostname_script configuration not defined thus read hostname 'cetc12' using socket.getfqdn(). INFO 2018-07-26 13:17:10,331 PingPortListener.py:50 - Ping port listener started on port: 8670 INFO 2018-07-26 13:17:10,334 main.py:439 - Connecting to Ambari server at https://cetc13:8440 (172.10.10.173) INFO 2018-07-26 13:17:10,335 NetUtil.py:70 - Connecting to https://cetc13:8440/ca ERROR 2018-07-26 13:17:10,340 NetUtil.py:96 - EOF occurred in violation of protocol (_ssl.c:579) ERROR 2018-07-26 13:17:10,340 NetUtil.py:97 - SSLError: Failed to connect. Please check openssl library versions. Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details. WARNING 2018-07-26 13:17:10,341 NetUtil.py:124 - Server at https://cetc13:8440 is not reachable, sleeping for 10 seconds... ", None) Connection to cetc12 closed. SSH command execution finished host=cetc12, exitcode=0 Command end time 2018-07-26 13:17:12 Registering with the server... Registration with the server failed.
[root@cetc15 lib64]# rpm -qa | grep openssl openssl-libs-1.0.2k-12.el7.x86_64 xmlsec1-openssl-1.2.20-7.el7_4.x86_64 openssl-1.0.2k-12.el7.x86_64
解决办法1：
地址：http://stackoverflow.com/questions/38423925/ambari-confirm-hosts-step-fails-registration-with-the-server-failed
说明：中文和英文操作系统版本问题，中文操作系统出错，英文则成功；
Hey,thank both of you.i got it.The character in China is UTF8,and Ambari is ascii.And Python 2.6 for UTF8 has a bug.
和
I think this is because I set a non-English language (i.e,. Trad. Chinese) as a default language when I installed CentOs 7. It would encounter a charset problem (UTF-8<->ascii) when confirming hosts. After changing the default language to English, This problem has been solved.
解决方法是将系统的默认语言改成英语。
解决办法2：
最有效的方式就是关闭 openssl 的检查
sed -i 's/verify=platform_default/verify=disable/' /etc/python/cert-verification.cfg source /etc/python/cert-verification.cfg
解决办法3：
若还是不能注册ambari-agent,使用下面介绍的方式。
如果上面方式还不能注册，说明jdk版本不通过，使用默认oracle啊jdk，博主是（centos7.3，所以选择jdk1.8）
（1）先停掉：ambari-server stop；
（2）卸载掉所有节点agent:rpm -qa | grep ambari-agent 得到对应版本，使用rpm -e ambari-agent-XXX卸载；
（3）启动setup：ambari-server setup，配置你的东西，直到选择jdk如下图：
这里，选择3
然后，yum -y install ambari-agent
等下载安装完成，继续后续步骤。直到结束
（4）启动ambari：ambari-server start
（5）配置ambari即可正常注册ambari-agent
解决办法4：
最终解决办法：
见
https://community.hortonworks.com/questions/121978/openssl-compatibility.html?childToView=138080#answer-138080
改为
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