
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? Thanks.

Didi, Shirly, can you help here? On Thu, Sep 1, 2016 at 8:52 AM, <nicolas@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?
Thanks. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com <https://www.redhat.com/it/about/events/red-hat-open-source-day-2016>

On Thu, Sep 1, 2016 at 3:26 PM, Sandro Bonazzola <sbonazzo@redhat.com> wrote:
Didi, Shirly, can you help here?
On Thu, Sep 1, 2016 at 8:52 AM, <nicolas@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". Best,
Thanks. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com <https://www.redhat.com/it/about/events/red-hat-open-source-day-2016>
-- Didi

Hi Didi, El 2016-09-01 14:02, Yedidyah Bar David escribió:
On Thu, Sep 1, 2016 at 3:26 PM, Sandro Bonazzola <sbonazzo@redhat.com> wrote:
Didi, Shirly, can you help here?
On Thu, Sep 1, 2016 at 8:52 AM, <nicolas@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_Enterprise_Virtualizat...
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

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, <nicolas@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 <sbonazzo@redhat.com> wrote:
Didi, Shirly, can you help here?
On Thu, Sep 1, 2016 at 8:52 AM, <nicolas@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

I tried adjusting the DWH_TABLES_KEEP_HOURLY parameter to a very low value and also setting the DWH_SAMPLING parameter to 60 and restarted both ovirt-engine-dwhd and ovirt-engine daemons, however, the database is still huge. So even if I change those parameters should I manually clean up the database? If so, what's the recommended way? Thanks. El 2016-09-01 19:26, Shirly Radco escribió:
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, <nicolas@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 <sbonazzo@redhat.com> wrote:
Didi, Shirly, can you help here?
On Thu, Sep 1, 2016 at 8:52 AM, <nicolas@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_Enterprise_Virtualizat... [3]
Best,
Thanks. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users [1] [1]
--
Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com [2] [2]
[3]
--
Didi
Links: ------ [1] http://lists.ovirt.org/mailman/listinfo/users [1] [2] http://redhat.com [2] [3] https://www.redhat.com/it/about/events/red-hat-open-source-day-2016 [4]
Links: ------ [1] http://lists.ovirt.org/mailman/listinfo/users [2] http://redhat.com [3] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualizat... [4] https://www.redhat.com/it/about/events/red-hat-open-source-day-2016

If you want to make the db smaller with immediate affect, please do full vacuum and analyze after deleting the rows from the DB or waiting a day for the DWH to do this. Yaniv Dary Technical Product Manager Red Hat Israel Ltd. 34 Jerusalem Road Building A, 4th floor Ra'anana, Israel 4350109 Tel : +972 (9) 7692306 8272306 Email: ydary@redhat.com IRC : ydary On Fri, Sep 2, 2016 at 12:07 PM, <nicolas@devels.es> wrote:
I tried adjusting the DWH_TABLES_KEEP_HOURLY parameter to a very low value and also setting the DWH_SAMPLING parameter to 60 and restarted both ovirt-engine-dwhd and ovirt-engine daemons, however, the database is still huge.
So even if I change those parameters should I manually clean up the database? If so, what's the recommended way?
Thanks.
El 2016-09-01 19:26, Shirly Radco escribió:
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, <nicolas@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 <sbonazzo@redhat.com> wrote:
Didi, Shirly, can you help here?
On Thu, Sep 1, 2016 at 8:52 AM, <nicolas@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 [3]
Best,
Thanks. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users [1] [1]
--
Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com [2] [2]
[3]
--
Didi
Links: ------ [1] http://lists.ovirt.org/mailman/listinfo/users [1] [2] http://redhat.com [2] [3] https://www.redhat.com/it/about/events/red-hat-open-source-day-2016 [4]
Links: ------ [1] http://lists.ovirt.org/mailman/listinfo/users [2] http://redhat.com [3] 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 [4] https://www.redhat.com/it/about/events/red-hat-open-source-day-2016
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
participants (5)
-
nicolas@devels.es
-
Sandro Bonazzola
-
Shirly Radco
-
Yaniv Dary
-
Yedidyah Bar David