Red Hat Bugzilla – Bug 1344267
The parameter "IO Threads" set in running vm not updated after vm restart.
Last modified: 2017-01-09 12:12:17 EST
Description of problem: After enabling "IO Threads" below message appears: ~~~ Changes that require Virtual Machine restart: numOfIoThreads ~~~ But once vm is down option "IO Threads" is disabled again. Version-Release number of selected component (if applicable): Red Hat Enterprise Virtualization Manager Version: 3.6.6.2-0.1.el6 How reproducible: Always Steps to Reproduce: 1. Enable "IO Threads" of running vm. 2. Shutdown vm 3. Check "IO Threads" parameter. Actual results: Unable to change "IO Threads" on running vm. Expected results: Enabling "IO Threads" on running vm should persist. Additional info: Currently we need to shutdown vm before changing "IO Threads". But disabling "IO Threads" on running vm works as expected.
I reproduced the bug on 3.6.6. The bug was that changing the IO Threads configuration (by enabling "IO Threads" and/or changing "num of io threads") is just not saved after exiting the dialog. i.e. after enabling the "IO Threads" and pressing the ok button, its not saved and return back to be disabled. If you will open the dialog again, the "IO Threads" is back to be disabled even before you shutdown the vm. The snapshot with the changed configuration is saved for the vm in db, but since the configuration is marked as disabled, the "IO Threads" configuration is not changed after vm restart. Anyway, it was fixed for 4.0 and therefore I close this bug.
verified on : Red Hat Enterprise Virtualization Manager Version: 4.0.2-0.2.rc1.el7ev verification steps : 1. Enable "IO Threads" of running vm. 2. Shutdown vm 3. Check "IO Threads" parameter.
(In reply to Shira Maximov from comment #5) > verified on : > Red Hat Enterprise Virtualization Manager Version: 4.0.2-0.2.rc1.el7ev > > verification steps : > 1. Enable "IO Threads" of running vm. > 2. Shutdown vm > 3. Check "IO Threads" parameter. And is it really working when the VM is running?
(In reply to Yaniv Kaul from comment #6) > (In reply to Shira Maximov from comment #5) > > verified on : > > Red Hat Enterprise Virtualization Manager Version: 4.0.2-0.2.rc1.el7ev > > > > verification steps : > > 1. Enable "IO Threads" of running vm. > > 2. Shutdown vm > > 3. Check "IO Threads" parameter. > > And is it really working when the VM is running? it's working only after shotdown
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2016-1743.html