Strahil Nikolov

On Wed, Jul 13, 2022 at 17:05, Jiří Sléžka
<jiri.slezka@slu.cz> wrote:

On 7/13/22 14:53, Jiří Sléžka wrote:
> On 7/12/22 22:28, Strahil Nikolov wrote:
>> glustereventad will notify the engine when something changes - like a
>> new volume is created from the cli (or bad things happened ;) ), so it
>> should be running. >
>> You can use the workaround from the github issue and reatart the
>> glustereventsd service.
>
> ok, workaround applied, glustereventsd service enabled and started on
> all hosts.
>
> I can see this log entry in volume Events
>
> Detected change in status of brick
> 10.0.4.11:/gluster_bricks/engine/engine of volume engine of cluster
> McHosting from UNKNOWN to UP via gluster event.
>
> but Bricks tab shows still two (.12 and .13) of three bricks in Unknown
> state. From command line point of view all bricks are up and healthy.
>
> it looks like engine thinks that gluster service is disabled in cluster
> but I cannot enable it because checkbox is disabled. In my other (FC
> based) oVirt instance Gluster Service checkbox is not selected but not
> disabled. So I am interested what could make that checkbox inactive...

well, on db side it looks like cluster has gluster_service disabled...

engine=# select virt_service, gluster_service from cluster;
virt_service | gluster_service
--------------+-----------------
t | f
(1 row)

still don't know why the checkbox is disabled. Would it be safe to
enabled gluster_service directly in db? I suppose no... :-)

Cheers,

Jiri

>
>> For the vdsm, you can always run
>> '/usr/libexec/vdsm/vdsmd_init_common.sh --pre-start' which is executed
>> by the vdsmd.service before every start (ExecStartPre stanza) and see
>> if it complains about something.
>
> [root@ovirt-hci03 ~]# /usr/libexec/vdsm/vdsmd_init_common.sh --pre-start
> vdsm: Running mkdirs
> vdsm: Running configure_vdsm_logs
> vdsm: Running run_init_hooks
> vdsm: Running check_is_configured
> sanlock is configured for vdsm
> lvm is configured for vdsm
> abrt is already configured for vdsm
> Managed volume database is already configured
> Current revision of multipath.conf detected, preserving
> libvirt is already configured for vdsm
> vdsm: Running validate_configuration
> SUCCESS: ssl configured to true. No conflicts
> vdsm: Running prepare_transient_repository
> vdsm: Running syslog_available
> vdsm: Running nwfilter
> vdsm: Running dummybr
> vdsm: Running tune_system
> vdsm: Running test_space
> vdsm: Running test_lo
>
> retcode 0, all looks ok...
>
> Cheers,
>
> Jiri
>
>>
>>
>> Best Regards,
>> Strahil Nikolov
>>
>>     On Tue, Jul 12, 2022 at 11:12, Jiří Sléžka
>>     <jiri.slezka@slu.cz> wrote:
>>     On 7/11/22 16:22, Jiří Sléžka wrote:
>>      > On 7/11/22 15:57, Strahil Nikolov wrote:
>>      >> Can you check for AVC denials and the error message like the
>>     described
>>      >> in
>>      >>
>>
>> https://github.com/gluster/glusterfs-selinux/issues/27#issue-1097225183
>>
>> <https://github.com/gluster/glusterfs-selinux/issues/27#issue-1097225183
>>      >?
>>      >
>>      > thanks for reply, there are two unrelated (qemu-kvm) avc denials
>>     logged
>>      > (related probably to sanlock recovery)
>>      >
>>      > also I cannot find glustereventsd in any related log... is it
>> really
>>      > used by vdsm-gluster?
>>      >
>>      > this service runs on no hosts
>>      >
>>      > systemctl status glustereventsd
>>      > ● glustereventsd.service - Gluster Events Notifier
>>      >    Loaded: loaded
>> (/usr/lib/systemd/system/glustereventsd.service;
>>      > disabled; vendor preset: disabled)
>>      >    Active: inactive (dead)
>>
>>     it looks like root of the problem is that Gluster service is
>>     disabled in
>>     cluster settings and cannot be enabled. But it was enabled before...
>>     also I have to manually install vdsm-gluster when I (re)install new
>>     host, but bricks from this host are in unknown state in admin. Maybe
>>     vdsm-gluster is not correctly configured? Maybe glustereventsd is not
>>     running? I am just guessing...
>>
>>     I have no access to other HCI installation so I cannot compare
>>     differences.
>>
>>     I would be really happy if someone could tell me what circumstances
>>     could disable Gluster service checkbox in admin and how to enable it
>>     again...
>>
>>     Cheers,
>>
>>     Jiri
>>
>>
>>      >
>>      > Cheers,
>>      >
>>      > Jiri
>>      >
>>      >
>>      >>
>>      >>
>>      >> Best Regards,
>>      >> Strahil Nikolov
>>      >>
>>      >>     On Mon, Jul 11, 2022 at 16:44, Jiří Sléžka
>>      >>     <jiri.slezka@slu.cz <mailto:jiri.slezka@slu.cz>> wrote:
>>      >>     Hello,
>>      >>
>>      >>     On 7/11/22 14:34, Strahil Nikolov wrote:
>>      >>      > Can you check something on the host:
>>      >>      > cat /etc/glusterfs/eventsconfig.json
>>      >>
>>      >>     cat /etc/glusterfs/eventsconfig.json
>>      >>     {
>>      >>      "log-level": "INFO",
>>      >>      "port": 24009,
>>      >>      "disable-events-log": false
>>      >>     }
>>      >>
>>      >>
>>      >>      > semanage port -l | grep $(awk -F ':' '/port/
>>     {gsub(",","",$2);
>>      >> print
>>      >>      > $2}' /etc/glusterfs/eventsconfig.json)
>>      >>
>>      >>     semanage port -l | grep 24009
>>      >>
>>      >>     returns empty set, it looks like this port is not labeled
>>      >>
>>      >>     Cheers,
>>      >>
>>      >>     Jiri
>>      >>
>>      >>      >
>>      >>      > Best Regards,
>>      >>      > Strahil Nikolov
>>      >>      > В понеделник, 11 юли 2022 г., 02:18:57 ч. Гринуич+3, Jiří
>>     Sléžka
>>      >>      > <jiri.slezka@slu.cz <mailto:jiri.slezka@slu.cz>
>>     <mailto:jiri.slezka@slu.cz <mailto:jiri.slezka@slu.cz>>> написа:
>>      >>      >
>>      >>      >
>>      >>      > Hi,
>>      >>      >
>>      >>      > I would like to change CPU Type in my oVirt 4.4.10 HCI
>>     cluster
>>      >>     (based on
>>      >>      > 3 glusterfs/virt hosts). When I try to I got this error
>>      >>      >
>>      >>      > Error while executing action: Cannot disable gluster
>>     service on
>>      >> the
>>      >>      > cluster as it contains volumes.
>>      >>      >
>>      >>      > As I remember I had Gluster Service enabled on this
>>     cluster but
>>      >>     now both
>>      >>      > (Enable Virt Services and Enable Gluster Service)
>>     checkboxes are
>>      >>     grayed
>>      >>      > out and Gluster Service is unchecked.
>>      >>      >
>>      >>      > Also Storage / Volumes displays my volumes... well,
>>     displays one
>>      >>     brick
>>      >>      > on particular host in unknown state (? mark) which is new
>>      >>     situation. As
>>      >>      > I can see from command line all bricks are online, no
>>     healing in
>>      >>      > progress, all looks good...
>>      >>      >
>>      >>      > I am not sure if the second issue is relevant to first
>>     one so main
>>      >>      > question is how can I (re)enable gluster service in my
>>     cluster?
>>      >>      >
>>      >>      > Thanks in advance,
>>      >>      >
>>      >>      > Jiri
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