Forcibly kill or purge the Job in the Torque Scheduler

When there is a job stuck and cannot be remove by a normal qdel, you can use the command qdel -p jobid. Do note that this command should be used when there is no other way to kill off the job in the usual fashion especially if the compute node is unresponsive.

# qdel -p jobID

References:

1. [torqueusers] qdel will not delete

Checking for Torque Server Version Number

To check Torque Version Number, do issue the command

# qstat --version
Version: 4.2.7
Commit: xxxxxxxxxxxxxxxxxxxxxx

cannot change directory to /home/user1. Permission denied on NFS mount

If you encountered the "cannot change directory to /home/user1. Permission denied on NFS mount" when you do a su --login user1. Do check the base directory permission. If the owner and group /home is root.root, do remember to chmod 755

# ls -ld /home
drwx------ 7 root root 8192 Dec 22 15:13 home

Change the permission to

# chmod 755 /home
drwxr-xr-x 7 root root 8192 Dec 22 15:13 home

Displaying SPICE on the VM network for RHEV 3.4

For more information, do take a look at my blog Displaying SPICE on the VM network for RHEV 3.4

The key issue is that after after selecting the network to house the "Display Network", do remember to boot all the VMs

Using log collector in RHEV 3.3 and above to collect full log

The Log Collector Utility for RHEV 3 is located in /usr/bin/rhevm-log-collector and is provided by the rhevm-log-collector package installed on the RHEV manager system.

 1. To collect all the information, use command

# engine-log-collector
INFO: Gathering oVirt Engine information...
INFO: Gathering PostgreSQL the oVirt Engine database and log files from localhost...
Please provide the REST API password for the admin@internal oVirt Engine user (CTRL+D to skip):
About to collect information from 1 hypervisors. Continue? (Y/n): y
INFO: Gathering information from selected hypervisors...
INFO: collecting information from 192.168.50.56
INFO: finished collecting information from 192.168.50.56
Creating compressed archive...

2. To collect information from selected hosts ending with ending in .11 and .15

# engine-log-collector --hosts=*.11,*.15

3. To collect information from the RHEV-M only

# engine-log-collector --no-hypervisors

References

1. https://access.redhat.com/solutions/61546