SSLError: Failed to connect. Please check openssl library versions.

---

🚫 ERROR

INFO 2020-02-14 17:13:35,457 NetUtil.py:70 - Connecting to https://hdp.hadoop.com:8440/ca
ERROR 2020-02-14 17:13:35,460 NetUtil.py:96 - EOF occurred in violation of protocol (_ssl.c:618)
ERROR 2020-02-14 17:13:35,461 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 2020-02-14 17:13:35,461 NetUtil.py:124 - Server at https://hdp.hadoop.com:8440 is not reachable, sleeping for 10 seconds...

 

💡 SOLVED

• [security]에 아래 옵션을 추가

$ vi /etc/ambari-agent/conf/ambari-agent.ini
force_https_protocol=PROTOCOL_TLSv1_2