Hi, I am trying to install a node manager in a host. However, I got timeout status via ambari web ui upon the installation of the node manager. All other components successfully installed. Did you guys encounter this error? ... View more

After a few months, my cluster is working properly. However, yesterday I've noticed that one of the services went down. I've tried to restart the service but it won't start. The action stuck in the background UI window seen in the image. I've tried to restart some services. However, the same issue encountered with the other service. I am thinking that there is something with Ambari UI sending the command to the cluster. Any suggestions would be helpful for me. Thank you I've already restarted the ambari-server and ambari-agent. H ... View more

I am trying to add a node in my cluster. However, after trying to register the new node to the cluster. I am getting the error below while registering it.Ambari version. 2.3.4.7 OS : Ubuntu 14.04 ERROR 2020-04-15 14:10:08,335 NetUtil.py:84 - [Errno 8] _ssl.c:510: EOF occurred in violation of protocol ERROR 2020-04-15 14:10:08,336 NetUtil.py:85 - SSLError: Failed to connect. Please check openssl library versions. Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details. WARNING 2020-04-15 14:10:08,336 NetUtil.py:112 - Server at https://xxxxxxx:8440 is not reachable, sleeping for 10 seconds... ', None) Troubleshooting: - Python version is the same new node and the cluster. I am using python 2.6. - Added also in ambari-client.ini the security protocol TLSv1. - Java version is also the same on all node like the new node. I am using java version "1.8.0_92". - DNS is also properly set. Got positive result when digging fqdn is resolving in the DNS server. - Host file is also properly set. Any suggestion is very much appreciated. Thanks in advance.     ... View more