ambari安装报错Registration with the server failed.

ambari2.1
HDP 2.3

安装ambari过程中，遇到个问题，耗费了我很长时间，在此记录

此问题是在安装第二步，注册主机时遇到的
Registering with the server...
Registration with the server failed.

解决方法：
Platforms:
    RHEL / CentOS 6.5
    Ambari 1.4 or later

Root Cause: The OpenSSL library available and installed by default on RHEL/CentOS 6.5 has a bug. Refer to for detailed information on the bug.

Remedy:
    Check the OpenSSL library version installed on your host(s):
    rpm -qa | grep openssl
    openssl-1.0.1e-15.el6.x86_64

    If the output says openssl-1.0.1e-15.x86_64 (1.0.1 build 15) you will need to upgrade the OpenSSL library by running the following command:
    yum upgrade openssl

    Verify you have the newer version of OpenSSL (1.0.1 build 16):
    rpm -qa | grep openssl
    openssl-1.0.1e-16.el6.x86_64

    Restart Ambari Agent(s) and Click Retry Failed

解决方法：
更新下openssl
#yum update openssl