5:33 p.m.
Thank you very much for all this detailed informations, Shirly. The only point is that we
(must I say "I" ?) never really ask for DWH when installing ovirt with hosted
engine, maybe it's a lake of documentation on my part but I never hear about it in the
installation procedure. Where I deduce that it is installed with ovirt engine, and if it
is a Postgre functionality, and if the Postgre database is automatically created in the
engine VM, so it is installed in the engine VM (Q.E.D. :) )
The warning you point to me maybe is not enough visible in installation procedures for who
lives in a country subject to the summer/winter time... But even apart of that, I
don't remember during the hosted engine installation a moment where it ask us for a
timezone, you see ? So I wonder where or when I could have force UTC time, in fact...
Can you tell me (and maybe for others installing it in France or similar countries) if you
see when this DWH and timezone questions can be managed in the hosted engine installation
process ?
This said, if I understand correctly your answers below, can I resume as this : don't
touch anything now, as the error is automatically repaired after this "1 hour gap /
overlap" (so I have no more messages after 3:00AM). Right ?
Many thanks again,
--
Regards,
Frank
Le Dimanche, Octobre 28, 2018 13:26 CET, Shirly Radco <sradco(a)redhat.com> a écrit:
Please see answers below and let me know if you have any other questions. Best,--
SHIRLY RADCO
BI SENIOR SOFTWARE ENGINEER
Red Hat IsraelTRIED. TESTED. TRUSTED. On Sun, Oct 28, 2018 at 12:55 PM fsoyer
<fsoyer(a)systea.fr> wrote:Well, I see that I'm late to give the information :)
Thank you to pointing me to this, but I have now some other questions now...
How can I see the timezone of the DB ? "If no time zone is stated in the input
string, then it is assumed to be in the time zone indicated by the system's TimeZone
parameter, and is converted to UTC using the offset for the timezone
zone." https://serverfault.com/questions/554359/postgresql-timezone-...
it says "all machines", do you confirm that this is physical machines, not VMs
? I mean the machine DWH is installed on. It can be a VM.But I'm not saying we
recommend all VMs to be set to UTC. May I apply the solution given on access.redhat or
not, as there is no more messages since 3AM ? No need. And, last question but not least,
can this timezone be changed on the machines (and DB ?) without issue ? It is possible to
update it, but its not mandatory. The 1 hour gap / overlap is expected when moving from
summer to winter and back when not using UTC and I'm not sure if its even worth
updating at this point,at the risk of ending up with a real bug..
--
Regards,
Frank
Le Dimanche, Octobre 28, 2018 11:40 CET, Shirly Radco <sradco(a)redhat.com> a écrit:
Hi, Please see
herehttps://www.ovirt.org/documentation/data-warehouse/Data_Collection_Se...
is recommended that you set the system time zone for all machines in your Data Warehouse
deployment to UTC. This ensures that data collection is not interrupted by variations in
your local time zone: for example, a change from summer time to winter time." What
timezone is your DB configured to? Best, --
SHIRLY RADCO
BI SENIOR SOFTWARE ENGINEER
Red Hat IsraelTRIED. TESTED. TRUSTED. On Sun, Oct 28, 2018 at 12:32 PM fsoyer
<fsoyer(a)systea.fr> wrote:Hi all,
Maybe it has already been posted, but I think I've discoverd a little bug. This night
I had this messages :
28 oct. 2018 03:00:00
ETL service aggregation to hourly tables has encountered an error. Please consult the
service log for more details.
28 oct. 2018 02:40:27
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:33:42
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:27:42
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:22:27
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:16:37
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:11:06
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:05:06
ETL service sampling has encountered an error. Please consult the service log for more
details.
28 oct. 2018 02:00:06
ETL service sampling has encountered an error. Please consult the service log for more
details
28 oct. 2018 02:00:00
ETL service aggregation to hourly tables has encountered an error. Please consult the
service log for more details.and, coincidence, here in France we have change to winter
hour at... 2AM :) So regarding this post:
https://access.redhat.com/solutions/3338001
speaking about a time problem, I've supposed that this is related ! No ? access.redhat
says that the cause was not yet determined, but maybe it can be interesting to propose
this cause ? But the bug is actually closed.
Question : does this repair all alone (as there is no more messages after 3AM) or may I
applied the solution with postgres updates (I must say that I'm not very enthousiast
for that...) ?
Regards,
--
Frank _______________________________________________
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