On Sun, Nov 17, 2019 at 9:19 AM Ivan de Gusmão Apolonio <
[email protected]> wrote:

> I'm having trouble to create a storage ISO Domain and attach it to a
> Datacenter. It just give me this error message:
>
> Error while executing action Attach Storage Domain: Could not obtain lock
>
> Also the oVirt's Engine log files show this error message: "setsid: failed
> to execute /usr/bin/ionice: Permission denied", but I was unable to
> identify what exactly it's trying to do to get this permission denied.
>
> 2019-11-14 16:46:07,779-03 ERROR
> [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
> (EE-ManagedThreadFactory-engine-Thread-7388)
> [86161370-2aaa-4eff-9aab-c184bdf5bb98] EVENT_ID:
> IRS_BROKER_COMMAND_FAILURE(10,803), VDSM command AttachStorageDomainVDS
> failed: Cannot obtain lock: u"id=e6b34c42-0ca6-41f4-be3e-3c9b2af1747b,
> rc=1, out=[], err=['setsid: failed to execute /usr/bin/ionice: Permission
> denied']"
>

ionice command runs in an elevated suid permissions by vdsm,
see that your host has /etc/sudoers.d/50_vdsm file with ionice command
entry and that /etc/sudoers has the #includedir /etc/sudoers.d directive.
>
>
> This behavior just happens on ISO Domains, while Data Domains works fine.
> I have read oVirt documentation and searched everywhere but I was unable to
> find the solution for this issue.
>
> I'm using CentOS 7 with last update of all packages (oVirt version
> 4.3.6.7). Please help!
>
> Thanks,
> Ivan de Gusmão Apolonio
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