I have successfully distributed the parcels in CDM 5.11 . I have three nodes ( 1- Master machine 2-slave machines )    Parcels Downloaded  - 100% Parcels Distributed - 3/3 Parcels Unpacked - 3/3 Parcels Activating -1/3 ( Master - not activated , Slave1 not activated , Slave 2 activated )    Operating System : CentOS 7  Cloudera Manager : CDH 5.11    /etc/hosts ( ALL are SAME IN ALL MACHINES ( Master, Slave1,Slave2)  # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 # cluster nodes. # 192.168.2.203 cluster-3.example.com cluster-3 192.168.10.194 master.localdomain master 192.168.10.103 slave1.localdomain slave1 192.168.10.54 slave2.localdomain slave2 /etc/hostname respective hostname for the machines  ( Master, Slave1,Slave2)  master /etc/sysconfig ( ALL are SAME IN ALL MACHINES ( Master, Slave1,Slave2)  NETWORKING=yes HOSTNAME=master RES_OPTIONS="single-request-reope SELINUX and Firewall are disabled in all machines(master,slave1,slave2) NTP Configured  [root@master ~]# timedatectl status Local time: Thu 2017-04-27 12:44:06 IST Universal time: Thu 2017-04-27 07:14:06 UTC RTC time: Thu 2017-04-27 07:14:06 Time zone: Asia/Kolkata (IST, +0530) NTP enabled: yes NTP synchronized: yes RTC in local TZ: no DST active: n/a NTP Conf :  #Server ( master ) driftfile /var/lib/ntp/drift restrict 192.168.10.194 mask 255.255.255.0 nomodify notrap restrict 127.0.0.1 restrict -6 ::1 server 127.127.1.0 # local clock fudge 127.127.1.0 stratum 10 #keys /etc/ntp/keys #Clients ( Slave1,Slave2) #server master.localdomain server master.localdomain true iburst driftfile /var/lib/ntp/drift LOGS ( Master )  cloudera-scm-agent    https://zerobin.net/?45cd752163283bd6#bdVtX7Akl1uQ3wB18fVCjECqD0ZE3lUwR99B3/CDnTE=    cloudera-scm-server.log   https://zerobin.net/?ee4f7345bce37959#rNmEvvl+acw8j0Y+QHaP2tQ3G2M2oR7Ce5JNyQka+mo=   Slave1 logs: ( NOT WORKING ) ( NOT ACTIVATED) cloudera-scm-agent.log https://zerobin.net/?a63a44744bee7c16#hTYpow0UPIBXW8CZJrlVJbxbnrohTntJg4yOVhvXVEg=   Slave2 Logs: (WORKING ) (ACTIVATED )  cloudera-scm-agent.log   https://zerobin.net/?e4b3475305f53fcc#vsqwitWsCwtWjNihzAFUWjViGupzE8grHaTruncFtfA=   Please help me , I was trying to install cloudera manager for last ten days . Please help me .  ... View more