We recently patched Linux servers (RHEL 7.4). As a part of the patching we upgraded openSSL libraries (from 1.0.1e-60.el7_3.1.x86_64 to 1.0.2k-8.el7.x86_64). After completing the process, we saw Heartbeat Lost message in Ambari UI. When I tried to run ambari-agent restart command and got this message in log file: INFO 2017-08-13 09:04:31,873 NetUtil.py:62 - Connecting to https://servername.com:8440/ca ERROR 2017-08-13 09:04:31,942 NetUtil.py:88 - [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:579) ERROR 2017-08-13 09:04:31,942 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 2017-08-13 09:04:31,943 NetUtil.py:116 - Server at https://servername.com:8440 is not reachable, sleeping for 10 seconds... Prior to patching, we had everything configured properly. We are using Apache Ambari 2.4.2.0. Is there any compatibility issue with OpenSSL and Ambari? Thanks, Darko ... View more

I have installed 3-node Kafka cluster as a part of HDP 2.5.3. At some point, we have tried to remove some of configuration groups and re-create them. Right now, we have remnants of previous groups (two deleted configuration groups). One of those deleted groups has node in it (03) which is duplicated (exists in Deleted and Kafka-...-03 groups). I tried to remove one of those appearances but I could not. Is there any way to remove old configuration groups and duplicated node? configgroups01.jpg Thanks! ... View more