Setup an HDP 2.3.4 cluster using ambari 2.2 and getting all services in unknown state (yellow question mark). Usually, restarting ambari-agent resolves this but not here. Log file shows # tail /var/log/ambari-agent/ambari-agent.log
INFO 2015-12-23 01:12:32,165 DataCleaner.py:120 - Data cleanup started
INFO 2015-12-23 01:12:32,172 DataCleaner.py:122 - Data cleanup finished
INFO 2015-12-23 01:12:32,223 PingPortListener.py:50 - Ping port listener started on port: 8670
INFO 2015-12-23 01:12:32,225 main.py:289 - Connecting to Ambari server at https://sandbox.hortonworks.com:8440 (192.168.191.139)
INFO 2015-12-23 01:12:32,225 NetUtil.py:60 - Connecting to https://sandbox.hortonworks.com:8440
ERROR 2015-12-23 01:15:52,344 NetUtil.py:84 - [Errno 8] _ssl.c:492: EOF occurred in violation of protocol
ERROR 2015-12-23 01:15:52,344 NetUtil.py:85 - SSLError: Failed to connect. Please check openssl library versions.
Refer to: https://sandbox.hortonworks.com:8440 for more details.
WARNING 2015-12-23 01:15:52,345 NetUtil.py:112 - Server at https://sandbox.hortonworks.com:8440 is not reachable, sleeping for 10 seconds...
INFO 2015-12-23 01:16:02,346 NetUtil.py:60 - Connecting to https://sandbox.hortonworks.com:8440
Initially I thought it was openSSL version issue but that seems to be ok: # rpm -qa | grep openssl
openssl-1.0.1e-42.el6_7.1.x86_64
# yum update openssl
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.dattobackup.com
* epel: linux.mirrors.es.net
* extras: dallas.tx.mirror.xygenhosting.com
* updates: centos.hostingxtreme.com
Setting up Update Process
No Packages marked for Update
# cat /etc/ambari-server/conf/ambari.properties | grep java
java.home=/usr/java/default
java.releases=jdk1.8,jdk1.7
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