# How to add PBS Pro client on Node - Ubuntu **URL:** \ **Category:** Users/Site Administrators\ **Created:** [December 3, 2019, 6:30pm UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886 "2019-12-03T18:30:30Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![legio06](https://avatars.discourse-cdn.com/v4/letter/l/df705f/32.png) [@legio06](https://community.openpbs.org/u/legio06)\ **Post date:** [December 3, 2019, 6:30pm UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886/1 "2019-12-03T18:30:30Z")
Hi, I am new at PBS Pro and thank you in advance for your help. I run Ubuntu 18.04 server version (no GUI) and I was able to install PBS Pro on the headnode following these instructions. > I also edited /etc/hosts file on both machine (headnode and node) I also configured passwordless ssh connection between the headnode and the node. All went well I am able to run PBS Pro command such as $ qstat -B Server Max Tot Que Run Hld Wat Trn Ext Status * * * eric9020-optiple 0 0 0 0 0 0 0 0 Idle Now, I am trying to install PBS Pro on a client node (where the job will actually run) but I don’t seem to be able to find any information on Ubuntu 18.04. I understand that PBS Pro is very concentrated on CentOS but my cluster (12 nodes) are already been configured with Ubuntu 18.04 and OpenMPI. I followed exactly the same steps for the headnode except for /etc/pbs.conf I edited the pbs.conf file for the node as follow: Node: PBS\_SERVER=eric9020-optiplex PBS\_START\_SERVER=0 PBS\_START\_SCHED=0 PBS\_START\_COMM=1 PBS\_START\_MOM=1 PBS\_EXEC=/opt/pbs PBS\_HOME=/var/spool/pbs PBS\_CORE\_LIMIT=unlimited PBS\_SCP=/usr/bin/scp For the Headnode I edited the pbs.conf file as follow: PBS\_SERVER=eric9020-optiplex PBS\_START\_SERVER=1 PBS\_START\_SCHED=1 PBS\_START\_COMM=1 PBS\_START\_MOM=0 PBS\_EXEC=/opt/pbs PBS\_HOME=/var/spool/pbs PBS\_CORE\_LIMIT=unlimited PBS\_SCP=/usr/bin/scp I edited the config for the PBS Pro client node to connect to the headnode (eric9020-optiplex) $ /var/spool/pbs/mom\_priv/config $clienthost eric9020-optiplex $restrict\_user\_maxsysid 999 I created a “nodes” file the on the headnode /var/spool/pbs/server\_priv# cat nodes knife11.stanford.edu np=2 When I try to add a node with the following command $ qmgr -c “create node knife11” I have the following error: qmgr obj=knife11 svr=default: Unauthorized Request qmgr: Error (15007) returned from server Thank you for your help ---
**Author:** ![adarsh](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@adarsh](https://community.openpbs.org/u/adarsh)\ **Post date:** [December 3, 2019, 10:42pm UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886/2 "2019-12-03T22:42:06Z")
PBS\_START\_COMM should be 0 > [@legio06](#): > > PBS\_SERVER=eric9020-optiplex > PBS\_START\_SERVER=0 > PBS\_START\_SCHED=0 > **PBS\_START\_COMM=0** > PBS\_START\_MOM=1 > PBS\_EXEC=/opt/pbs > PBS\_HOME=/var/spool/pbs > PBS\_CORE\_LIMIT=unlimited > PBS\_SCP=/usr/bin/scp > [@legio06](#): > > $ qmgr -c “create node knife11” > > I have the following error: > qmgr obj=knife11 svr=default: Unauthorized Request > qmgr: Error (15007) returned from server Did you run the above command as root user ? Is your /etc/hosts correctly populated and DNS working ? Please run the below command as **root** user : qmgr -c “set server managers+=root@eric9020-optiplex” qmgr -c “create node knife11” Hope this works ---
**Author:** ![legio06](https://avatars.discourse-cdn.com/v4/letter/l/df705f/32.png) [@legio06](https://community.openpbs.org/u/legio06)\ **Post date:** [December 4, 2019, 12:07am UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886/3 "2019-12-04T00:07:35Z")
Thank you adarsh. When i switch to **root** user and run qstat -B I get the following error message: Command ‘qstat’ not found, but can be installed with: apt install gridengine-client apt install slurm-wlm-torque which means that i need to set paths to PBS Commands for **root** user. How do i do that ? ---
**Author:** ![kjakkali](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.openpbs.org/kjakkali/32/138_2.png) [@kjakkali](https://community.openpbs.org/u/kjakkali)\ **Post date:** [December 4, 2019, 4:18am UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886/4 "2019-12-04T04:18:13Z")
@legio06 You can set PBS binaries path as ‘export PATH=/opt/pbs/bin:/opt/pbs/sbin:$PATH’ ---
**Author:** ![adarsh](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@adarsh](https://community.openpbs.org/u/adarsh)\ **Post date:** [December 4, 2019, 11:43am UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886/5 "2019-12-04T11:43:47Z")
- @kjakkali @legio06: You can create a file /etc/profile.d/pbs.sh ( if it is already there then source /etc/profile.d/pbs.sh ) The contents of this file source /etc/pbs.conf export PATH=$PATH:$PBS\_EXEC/bin logout and login as root and run the commands or else source /etc/profile.d/pbs.sh and then run the commands ---
**Author:** ![legio06](https://avatars.discourse-cdn.com/v4/letter/l/df705f/32.png) [@legio06](https://community.openpbs.org/u/legio06)\ **Post date:** [December 4, 2019, 5:57pm UTC](https://community.openpbs.org/t/how-to-add-pbs-pro-client-on-node-ubuntu/1886/6 "2019-12-04T17:57:10Z")
Thank you @kjakkali and @adarsh for the PATH. It works. I could not run the command root@eric9020-optiplex:~# qmgr -c “set server managers+=root@eric9020-optiplex” Unknown Host. qmgr: cannot connect to server server Unknown Host. qmgr: cannot connect to server managers+=root@eric9020-optiplex” However, i was able to run the following command and add the node (knkife11.stanford.edu) root@eric9020-optiplex:~# qmgr Max open servers: 49 Qmgr: create node knife11 Qmgr: quit root@eric9020-optiplex:~# pbsnodes -a knife11 Mom = knife11.stanford.edu Port = 15002 pbs\_version = 19.1.3 ntype = PBS state = free pcpus = 2 resources\_available.arch = linux resources\_available.host = knife11 resources\_available.mem = 3907988kb resources\_available.ncpus = 2 resources\_available.vnode = knife11 resources\_assigned.accelerator\_memory = 0kb resources\_assigned.hbmem = 0kb resources\_assigned.mem = 0kb resources\_assigned.naccelerators = 0 resources\_assigned.ncpus = 0 resources\_assigned.vmem = 0kb resv\_enable = True sharing = default\_shared last\_state\_change\_time = Wed Dec 4 09:32:13 2019 I was not able to submit a simple query job as suggested in the above instructions from GitHub $ echo “sleep 60” | qsub The error message was: qsub: No default queue specified Why is that ? Thank you again for your help. Best, Eric