@Yee Zee Please make sure that your Ambari Infra is running fine and now throwing any errors in the logs. Looks like Log Search UI is not able to communicate with Infra Solr. Or better to restart the Ambari Infra Solr once and then try logging in to LogSearch UI ... View more

@Shraddha Singh While checking /usr/hdp/current folder there are no files available. . This is normal ... If your ambari cluster installation is not done successfully via ambari then the HDP binaries will not be installed to the cluster hosts and hence you will not see the directories inside the "/usr/hdp" Once the HDP installation is started/completed then you will see the hsp-select command returning results by looking the contents inside the "/usr/hdp" directory. ... View more

@Shraddha Singh Please try this on the problematic host and then check if it works, # yum reinstall hdp-select -y # yum clean all . Also please share the output of the following commands: # hdp-select versions # hdp-select | grep hadoop # ls -lart /usr/hdp # ls -lart /usr/hdp/current/ . ... View more

@Shraddha Singh You can find similar issue as yours here: http://knowledge.teradata.com/KCS/id/KCS015527 ... View more

@Shraddha Singh Can you please share the "/etc/ambari-agent/conf/ambari-agent.ini" file or check & share the output of the following commands : # grep 'run_as_user' /etc/ambari-agent/conf/ambari-agent.ini # ps -ef | grep main.py . ... View more

@Shraddha Singh If you are running ambari agent as non root user then you must have to give him some command execute permissions and sudoer permission as mentioned in : https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-security/content/commands_agent.html sudo entries that should be placed in /etc/sudoers by running the visudo command Example (snippet): (notice hdp-select in below command list.) # Ambari: Hadoop and Configuration Commands ambari ALL=(ALL) NOPASSWD:SETENV: /usr/bin/hdp-select, /usr/bin/conf-select, /usr/hdp/current/hadoop-client/sbin/hadoop-daemon.sh, /usr/lib/hadoop/bin/hadoop-daemon.sh, /usr/lib/hadoop/sbin/hadoop-daemon.sh, /usr/bin/ambari-python-wrap * . You can get the list of all needed commands in the mentioned Doc. You must do this sudo configuration on every node in the cluster. To ensure that the configuration has been done properly, you can su to the ambari user and run sudo -l. There, you can double check that there are no warnings, and that the configuration output matches what was just applied. ... View more

@ram sriram You can click on the "Accept" button on the correct answer, that way other HCC users can quickly browser the answered queries. ... View more