Hi Nicolas,

These are DWH error. I see in engine.log that around the time you are referring to there are many connectipn errors to the postgresql database.

When DWH is unable to connect to the engine database and error is sent to the ovirt-engine-history.log.

I don't see the error you are referring to in the engine.log.

The DWH samples every 20 second for statistics that are used to create the ovirt dashboards.

If there is a problem with the postgres connection then the hourly aggregation of the samples failed too.

I see that first postgres connection error started at 2017-04-20 11:06:04,162+01 ERROR .

I see the problem with the database is still not fixed.

Please check for the reason your database connection keeps closing.

Best regards,

--

SHIRLY RADCO

BI SOFTWARE ENGINEER,

Red Hat Israel

sradco@redhat.com

On Thu, Apr 20, 2017 at 2:12 PM, <nicolas@devels.es> wrote:

Hi,

We're using oVirt 4.1.1.8 (upgraded yesterday) and since it has been showing some strange errors I'd like to know about:

ETL service sampling has encountered an error. Please consult the service log for more details.

I'm attaching the engine log FWIW. This message showed up at 11:07:04 but in the log I see the exceptions started 1 minute ago.

Also, at 11:07:58 this event showed up:

Engine server is not responding.

And at 11:12:58 it seems to recover:

Engine server is up and running.

At 12:00:00 this message showed up:

ETL service aggregation to hourly tables has encountered an error. Please consult the service log for more details.

But relative to this one I see nothing in logs.

Could someone clarify what these error messages mean?

Thanks.
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