ambari安装报错Registration with the

在ambari 安装的confirm hosts阶段，出现【之前已配置ssh免密登录】：

('ERROR 2017-12-03 20:09:43,441 NetUtil.py:56 - [Errno 1] _ssl.c:492: error:100AE081:elliptic curve routines:EC_GROUP_new_by_curve_name:unknown group
ERROR 2017-12-03 20:09:43,442 NetUtil.py:58 - SSLError: Failed to connect. Please check openssl library versions. 
Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details.
INFO 2017-12-03 20:09:43,442 NetUtil.py:81 - Server at https://Master.domain.dev:8440 is not reachable, sleeping for 10 seconds...
INFO 2017-12-03 20:09:45,343 main.py:83 - loglevel=logging.INFO
INFO 2017-12-03 20:09:45,343 main.py:55 - signal received, exiting.
INFO 2017-12-03 20:09:45,343 ProcessHelper.py:39 - Removing pid file
INFO 2017-12-03 20:09:45,344 ProcessHelper.py:46 - Removing temp files
INFO 2017-12-03 20:10:19,815 main.py:83 - loglevel=logging.INFO
INFO 2017-12-03 20:10:19,816 DataCleaner.py:36 - Data cleanup thread started
INFO 2017-12-03 20:10:19,816 DataCleaner.py:71 - Data cleanup started
INFO 2017-12-03 20:10:19,816 DataCleaner.py:73 - Data cleanup finished
INFO 2017-12-03 20:10:19,973 PingPortListener.py:51 - Ping port listener started on port: 8670
INFO 2017-12-03 20:10:19,973 main.py:227 - Connecting to the server at: https://Master.domain.dev:8440
INFO 2017-12-03 20:10:19,974 NetUtil.py:72 - DEBUG: Trying to connect to the server at https://Master.domain.dev:8440
INFO 2017-12-03 20:10:19,974 NetUtil.py:42 - Connecting to the following url https://Master.domain.dev:8440/cert/ca
ERROR 2017-12-03 20:10:20,023 NetUtil.py:56 - [Errno 1] _ssl.c:492: error:100AE081:elliptic curve routines:EC_GROUP_new_by_curve_name:unknown group
ERROR 2017-12-03 20:10:20,023 NetUtil.py:58 - SSLError: Failed to connect. Please check openssl library versions. 
Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details.
INFO 2017-12-03 20:10:20,023 NetUtil.py:81 - Server at https://Master.domain.dev:8440 is not reachable, sleeping for 10 seconds...
', None)
Connection to Slave5.domain.dev closed.
SSH command execution finished
host=Slave5.domain.dev, exitcode=0
Command end time 2017-12-03 12:07:47
Registering with the server...
Registration with the server failed.

查了很多blog，大部分都是扯淡，后面发现是ssh的问题
解决办法：
更新下openssl

#yum update openssl