Unable to start pbs_mom on computenode

#1

Dear Team,
I have installed pbspro-ce-19.1.1 on Rocks7 cluster environment , pbspro-server-19.1.1-0.x86_64.rpm is installed on Master node and enbled pbs_mom aslo. However, while adding computenode , after installing yum install pbspro-execution-19.1.1-0.x86_64.rpm unable to start pbs on computenode.

[root@compute-0-0 pbs]# service pbs status
pbs_mom is not running

[root@compute-0-0 pbs]# service pbs restart
Restarting PBS
Stopping PBS
Waiting for shutdown to complete
Starting PBS
PBS Home directory /var/spool/pbs needs updating.
Running /opt/pbs/libexec/pbs_habitat to update it.



*** The PBS Pro server could not be found: master.calligotech.com
*** This value must resolve to a valid IP address.


[root@compute-0-0 pbs]# pbsnodes -a
Unknown Host.
pbsnodes: cannot connect to server master.calligotech.com, error=15008

[root@compute-0-0 pbspro_19.1.1.centos7]# cat /etc/pbs.conf
PBS_EXEC=/opt/pbs
PBS_SERVER=master.calligotech.com
PBS_START_SERVER=0
PBS_START_SCHED=0
PBS_START_COMM=0
PBS_START_MOM=1
PBS_HOME=/var/spool/pbs
PBS_CORE_LIMIT=unlimited
PBS_SCP=/bin/scp
[root@compute-0-0 pbspro_19.1.1.centos7]# cat /var/spool/pbs/mom_priv/config
$clienthost master.calligotech.com
$restrict_user_maxsysid 999
$logevent 0x1ff

Please help me to resolve this issue.

Thanks in adv…

Regards,
Zain

#2

Please check

  1. /etc/hosts ( name resolution : forward and reverse address resolution should work for master.calligotech.com across the PBS complex headnode and compute nodes)
  2. firewall allowing ports 15001 to 15007 and 17001
  3. SELinux disabled and system should be restarted if not restarted after disabling it.