ambari installation full steps centos7 hostnamectl set-hostname your_hostname systemctl get-default systemctl set-default multi-user.target nano(vim) /etc/hosts  ==>  add , ip_of_machine  name_of_machine systemctl disable firewalld vim /etc.sysconfig/network ==> HOSTNAME=machine_hostname                                                     NETWORKING=yes vim /etc/sysctl.conf ==> add, vm.swappiness=10 vim /etc/selinux/config ==> change ,selinux=disabled yum install ntp systemctl enable ntp systemctl start ntp   vim /etc/rc.local==> enbale huge page :add ,   echo never > /sys/kernel/mm/transparent_hugepage/defrag echo never > /sys/kernel/mm/transparent_hugepage/enabled;  cd /etc/yum.repos.d yum install wget yum install ambari repo and favorite one here is 2.7.3 wget -nv http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.7.3.0/ambari.repo -O /etc/yum.repos.d/ambari.repo  yum repolist yum install ambari-server ambari-agent vim /etc/ambari-agent/conf/ambari-agent.ini ==>hostname=your_hostname                                        in security section add ==>force_https_protocol=PROTOCOL_TLSV1_2 ambari-server setup ==> dont enter advanced setup and install jdk ambari-server start go to the web page enter (hostname:8080) or machine_ip:8080 enjoy . please accept the answer after trying; best regards.   ... View more

@SushantRao where is the source code for Cloudera Manager and all the other CDH7 components ? Is there documentation available to locate and build the packages ? ... View more

@WilsonLozano,   As this thread is older and was marked 'Solved back in August of 2019 you would have a better chance of receiving a resolution by starting a new thread. This will also provide the opportunity to provide details specific to your environment, version of CDH, etc. that could aid others in providing a more accurate answer to your question.      ... View more

Dear Jay   what to say   excellent answer , you are really one of the best here  ... View more

@Shelton we are still experiencing slowness in ambari UI after enabling the above properties.    ... View more

@Shelton @EricL Thank you both. the correct ACL spec is group::r-x Now the following command works. sudo -u zeppelin hadoop fs -ls /warehouse/tablespace/managed/hive/test1   From what I just ran into, I feel that, by design, Hive takes extra effort to prevent users from accessing managed table files directly. I will follow that design and access Hive managed table only through Hive. ... View more

Sorry for the bump. I tried this in the HDP Sandbox and discovered that installing krb5-workstation-1.15.1-37.el7_7.2.x86_64.rpm solved the problem ... View more