Ok for future users 🙂 Check if certyficate is generated by ambari server from one of the nodes: openssl s_client -connect server_address:8440 corect results (similar): ---Server certificate-----BEGIN CERTIFICATE----- MIIFnDCCA4SgAwIBAgIBATANBgkqhkiG9w0BAQsFADBCMQswCQYDVQQGEwJYWDEV ................. ................. If you are not receiving corect handshake you need to verify ambari-server.ini (ambari server): vi /etc/ambari-server/conf/ambari.properties and # the line with TLS cyphers 🙂 , Ok for future users 🙂 Check if certyficate is generated by ambari server from one of the nodes: openssl s_client -connect server_address:8440 corect results (similar): ---Server certificate-----BEGIN CERTIFICATE----- MIIFnDCCA4SgAwIBAgIBATANBgkqhkiG9w0BAQsFADBCMQswCQYDVQQGEwJYWDEV ................. ................. If you are not receiving corect handshake you need to verify ambari-server.ini (ambari server): vi /etc/ambari-server/conf/ambari.properties and # the line with TLS cyphers 🙂 ... View more

I have the same issues on AWS servers. I'm going through ambari wizard and I always get failed status. In error as usual: ERROR 2018-07-28 14:12:35,131 NetUtil.py:88 - EOF occurred in violation of protocol (_ssl.c:579) ERROR 2018-07-28 14:12:35,131 NetUtil.py:89 - SSLError: Failed to connect. Please check openssl library versions. Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details. WARNING 2018-07-28 14:12:35,132 NetUtil.py:116 - Server at https://ip-172-31-0-xx.eu-west-1.compute.internal:8440 is not reachable, sleeping for 10 seconds... ', None) ('WARNING 2018-07-28 14:12:32,307 NetUtil.py:116 - Server at https://ip-172-31-0-xx.eu-west-1.compute.internal:8440 is not reachable, sleeping for 10 seconds... INFO 2018-07-28 14:12:32,307 HeartbeatHandlers.py:115 - Stop event received I've tried adding in /etc/python/cert-verification.cfg [https] verify=disable I've tried adding in /etc/amabri-agent/conf/ambari-agent.in [security] force_https_protocol=PROTOCOL_TLSv1_2 I've restarted agents still the same error :( Any ideas? :) ... View more