Ambari 2.6.2 setup stuck at step 3

[#1]

Dear Team,

When we are trying to launching the instance in ambai 2.6.2 then getting error. Please find the below steps and error.

steps :-

========

Get Started > Select Version > install options > Confirm Hosts

error:-

======

Registering with the server...

Registration with the server failed.

Ambari-server log file :-

27 Feb 2019 14:40:42,613 INFO [pool-18-thread-1] AmbariMetricSinkImpl:95 - No clusters configured.

27 Feb 2019 14:45:42,613 INFO [pool-18-thread-1] MetricsServiceImpl:65 - Attempting to initialize metrics sink

27 Feb 2019 14:45:42,613 INFO [pool-18-thread-1] MetricsServiceImpl:81 - ********* Configuring Metric Sink **********

27 Feb 2019 14:45:42,613 INFO [pool-18-thread-1] AmbariMetricSinkImpl:95 - No clusters configured.

27 Feb 2019 14:50:42,614 INFO [pool-18-thread-1] MetricsServiceImpl:65 - Attempting to initialize metrics sink

27 Feb 2019 14:50:42,614 INFO [pool-18-thread-1] MetricsServiceImpl:81 - ********* Configuring Metric Sink **********

27 Feb 2019 14:50:42,614 INFO [pool-18-thread-1] AmbariMetricSinkImpl:95 - No clusters configured.

27 Feb 2019 14:55:42,614 INFO [pool-18-thread-1] MetricsServiceImpl:65 - Attempting to initialize metrics sink

27 Feb 2019 14:55:42,615 INFO [pool-18-thread-1] MetricsServiceImpl:81 - ********* Configuring Metric Sink **********

27 Feb 2019 14:55:42,615 INFO [pool-18-thread-1] AmbariMetricSinkImpl:95 - No clusters configured.

Ambari-agent log file :-

Spoiler

Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details. WARNING 2019-02-27 15:00:31,741 NetUtil.py:124 - Server at
https://xxx.yyyy.example.com:8440 is not reachable, sleeping for 10 seconds...
INFO 2019-02-27 15:00:41,741 NetUtil.py:70 - Connecting to https://xxx.yyyy.example.com:8440/ca ERROR 2019-02-27 15:00:41,744 NetUtil.py:96 - [Errno 8] _ssl.c:492: EOF occurred in violation of protocol ERROR 2019-02-27 15:00:41,744 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 2019-02-27 15:00:41,744 NetUtil.py:124 - Server at https://xxx.yyyy.example.com:8440 is not reachable, sleeping for 10 seconds...
INFO 2019-02-27 15:00:51,745 NetUtil.py:70 - Connecting to https://xxx.yyyy.example.com:8440/ca ERROR 2019-02-27 15:00:51,747 NetUtil.py:96 - [Errno 8] _ssl.c:492: EOF occurred in violation of protocol
ERROR 2019-02-27 15:00:51,747 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 2019-02-27 15:00:51,748 NetUtil.py:124 - Server at https://xxx.yyyy.example.com:8440 is not reachable, sleeping for 10 seconds...
INFO 2019-02-27 15:01:01,748 NetUtil.py:70 - Connecting to https://xxx.yyyy.example.com:8440/ca
ERROR 2019-02-27 15:01:01,751 NetUtil.py:96 - [Errno 8] _ssl.c:492: EOF occurred in violation of protocol ERROR 2019-02-27 15:01:01,751 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 2019-02-27 15:01:01,751 NetUtil.py:124 - Server at https://xxx.yyyy.example.com:8440 is not reachable, sleeping for 10 seconds...
INFO 2019-02-27 15:01:11,752 main.py:439 - Connecting to Ambari server at https://xxx.yyyy.example.com:8440 (10.66.52.93) INFO 2019-02-27 15:01:11,752 NetUtil.py:70 - Connecting to https://xxx.yyyy.example.com:8440/ca
ERROR 2019-02-27 15:01:11,755 NetUtil.py:96 - [Errno 8] _ssl.c:492: EOF occurred in violation of protocol ERROR 2019-02-27 15:01:11,755 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 2019-02-27 15:01:11,755 NetUtil.py:124 - Server at https://xxx.yyyy.example.com:8440 is not reachable, sleeping for 10 seconds...

Thanks & Regards,

Prashant Gupta

[#2]

easy step

1- vi /etc/sysconfig/network ==> NETWORKING=yes ; HOSTNAME=<your -hostname>

2 -vi /etc/hosts ==> ip <your-hostname>  name

3-vi /etc/ambari-agent/conf/ambari-agent.ini ==> hostname=<your hostname>

and in the field security ==> force_https_protocol=PROTOCOL_TLSv1_2

the most reason of step 3 stuck is the first step of it refers to your hostname