Hi @lam rab, Have you done the mandatory post upgrade tasks related to ambari upgrade ? I hope if you perform this command, the output will have every ambari versions same rpm -qa |grep -i ambari refer to this doc for more (this is for ambari-2.4.3 , choose for your version of ambari ) : https://docs.hortonworks.com/HDPDocuments/Ambari-2.4.3.0/bk_ambari-upgrade/content/upgrade_ambari_metrics.html Please mark answer as accepted if its helpful ... View more

Hi @Mvano Mhlawuli, glad that your issue is resolved. Can you please login and accept my comment. if this helped you. this will allow other users to find best answer easily. ... View more

Hi @Shashi Vk, Can you add user 'spark' in yarn. admin. acl via ambari Ambari->service>Yarn->configs>yarn. admin. acl comma seperated and restart resourcemanager and try. Please accept answer if this helped. ... View more

Hi @Lian Jiang, Please see if this article can help you : https://community.hortonworks.com/content/supportkb/186304/unable-to-start-pyspark-jobs-when-running-with-pyt.html Please login and accept answer if it helped :) ... View more

Hi @Wasantha Herath , have you installed ambari-agent via root only ? whats permission of this folder and this file now. this looks permission issue only. ... View more

Hi @yadir Aguilar, Looks like your hst-agent is ok. What are you seeing when you do this command . [root@asnaikh ~]# cat /var/log/ambari-agent/ambari-agent.log |grep -i heartbeat INFO 2018-08-21 14:36:13,697 Controller.py:311 - Building heartbeat message INFO 2018-08-21 14:36:13,699 Heartbeat.py:87 - Adding host info/state to heartbeat message. INFO 2018-08-21 14:36:14,001 Controller.py:320 - Sending Heartbeat (id = 2841) INFO 2018-08-21 14:36:14,005 Controller.py:333 - Heartbeat response received (id = 2842) INFO 2018-08-21 14:36:14,005 Controller.py:342 - Heartbeat interval is 1 seconds INFO 2018-08-21 14:36:14,005 Controller.py:380 - Updating configurations from heartbeat INFO 2018-08-21 14:36:14,006 Controller.py:475 - Waiting 0.9 for next heartbeat just to figure out if its ambari-agent issue or ambari-server issue. Can you try to restart ambari-server ambari-server restart and see if it helps. also grep for [root@anaikhdf1 ~]# cat /var/log/ambari-server/ambari-server.log |grep -i heartbeat|grep -i <problem_nodeFQDN> ... View more

Hi @yadir Aguilar , It looks like some smart sense is not responding. can you perform the following steps and see if it helps 1) execute : ambari-agent restart 2) see whats output of this command : /usr/sbin/hst agent-status 3)if output of command-2 hangs , try restarting hst-server from ambari-ui and see if the hearbeat come's back. Hope this troubleshooting helps you ... View more