Another option is to set the DWH_SAMPLING back to 60  and restart dwh.
This will lower the granularity of the dashboard calculations.
The dwh db size grow since now it samples the statistics every 15 seconds
instead of once a minute.

Best regards,
Shirly Radco

On Sep 1, 2016 19:29, <nico...@devels.es> wrote:

> Hi Didi,
>
> El 2016-09-01 14:02, Yedidyah Bar David escribió:
>
>> On Thu, Sep 1, 2016 at 3:26 PM, Sandro Bonazzola <sbona...@redhat.com>
>> wrote:
>>
>> Didi, Shirly, can you help here?
>>>
>>> On Thu, Sep 1, 2016 at 8:52 AM, <nico...@devels.es> wrote:
>>>
>>> Hi,
>>>>
>>>> Since we upgraded to 4.0.x, DWH's PostgreSQL database is getting
>>>> really huge. Is there a clean way to limit its size, like setting
>>>> a maximal retention time for DWH data?
>>>>
>>>
>> Earlier today replied to a similar question, search list archives for
>> "Change Engine History Logging from Advanched to Basic".
>>
>>
> Just to confirm: I already have basic DWH configured, and the content of
> /etc/ovirt-engine-dwh/ovirt-engine-dwhd.conf.d/10-setup-scale.conf is:
>
>   DWH_TABLES_KEEP_SAMPLES=24
>   DWH_TABLES_KEEP_HOURLY=720
>   DWH_TABLES_KEEP_DAILY=0
>
> So according to [1] regarding "DWH_TABLES_KEEP_HOURLY":
>
>   The number of hours that hourly data is stored. The default is 60 days.
>   Hourly data more than two days old is aggregated into dailydata.
>
> if I reduce that value to say 240 (10 days), any older entry from that
> should be erased upon a DWH restart, right?
>
> Thanks.
>
>   [1]: https://access.redhat.com/documentation/en-US/Red_Hat_Enterp
> rise_Virtualization/3.6/pdf/Reports_and_Data_Warehouse_
> Guide/Red_Hat_Enterprise_Virtualization-3.6-Reports_
> and_Data_Warehouse_Guide-en-US.pdf
>
> Best,
>>
>>
>>
>> Thanks.
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users@ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users [1]
>>>>
>>>
>>> --
>>>
>>> Sandro Bonazzola
>>> Better technology. Faster innovation. Powered by community
>>> collaboration.
>>> See how it works at redhat.com [2]
>>>
>>> [3]
>>>
>>
>> --
>>
>> Didi
>>
>>
>> Links:
>> ------
>> [1] http://lists.ovirt.org/mailman/listinfo/users
>> [2] http://redhat.com
>> [3] https://www.redhat.com/it/about/events/red-hat-open-source-day-2016
>>
>
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