dhis2-devs team mailing list archive

[Uwe Wahser <uwe@xxxxxxxxx>]

Hi Morten,

thanks for joining in. I just created the blu-print: 

https://blueprints.launchpad.net/dhis2/+spec/clear-analytics-table-api

@Olav P: would this be an applicable solution for your problem, too?

Regards, Uwe

---

> Morten Olav Hansen <morten@xxxxxxxxx> hat am 19. Februar 2016 um 14:05
> geschrieben:
> 
> 
> Hi Uwe
> 
> We have an API for clearing analytics cache [1], I'm sure we can make one
> for clearing analytics tables also. Would you mind creating a blueprint for
> us? and give me the link, and I will assign the proper people.
> 
> [1] http://dhis2.github.io/dhis2-docs/master/en/developer/html/ch01s34.html
> 
> On Fri, Feb 19, 2016 at 4:25 PM, Uwe Wahser <uwe@xxxxxxxxx> wrote:
> 
> > Hi Lars,
> >
> > thanks for taking this over. If there was an api for clearing the analytics
> > table, which is giving back a result (unlike the one for updating the
> > analytics
> > tables), that would already be a sufficient solution for nightly runs.
> > Then I
> > could always delete the analytics tables before generating them afresh.
> > Whatever
> > is easier for you to implement ...
> >
> > You have interesting working hours :-)
> >
> > Regards, Uwe
> >
> >
> > > Lars Helge Øverland <lars@xxxxxxxxx> hat am 19. Februar 2016 um 04:38
> > > geschrieben:
> > >
> > >
> > > Hi Uwe,
> > >
> > > will work on this.
> > >
> > > https://bugs.launchpad.net/dhis2/+bug/1408096
> > >
> > > Short-term workaround is to go to data admin > maintenance and click
> > Clear
> > > analytics tables.
> > >
> > > regards,
> > >
> > > Lars
> > >
> > >
> > > On Thu, Feb 18, 2016 at 3:32 AM, Olav Poppe <olav.poppe@xxxxxx> wrote:
> > >
> > > > Hi, I can only support/confirm what Uwe is saying here - I just
> > experieced
> > > > the same thing this morning: deleted data for one year, ran analytics,
> > and
> > > > the deleted data is still displayed.
> > > >
> > > > Olav
> > > >
> > > >
> > > >
> > > > 18. feb. 2016 kl. 07.38 skrev Uwe Wahser <uwe@xxxxxxxxx>:
> > > >
> > > > Dear devs,
> > > >
> > > > it seems like the analytics table update does not remove data/tables of
> > > > years,
> > > > that are no longer valid.
> > > >
> > > > Since dataValues can be deleted via api in batch, it can happen that
> > > > dataValues
> > > > for a whole year get deleted. Of course these years should not show up
> > in
> > > > the
> > > > analytics (pivot, chart etc...) any more. However, those obsolete
> > tables
> > > > seem to
> > > > remain in the database after running the analytics update. Of course
> > they
> > > > could
> > > > be remove manually, but this is not applicable in a nightly load
> > scenario.
> > > >
> > > > I did empty the cache and checked catalina.out, but I can't find an
> > error.
> > > > In
> > > > the database the dataValues table remains with only the years, that
> > were
> > > > not
> > > > deleted, so the deletion obviously worked. But the obsolete analytics
> > > > tables
> > > > (e.g. analytics_2012) are still there and populated. You can verify in
> > the
> > > > attached excerpt from catalina.out: only years >= 2016 were (correctly)
> > > > updated,
> > > > deleted years <= 2015 remained untouched.
> > > >
> > > > This is quite serious as it results into wrong statistics, if not
> > > > detected. I
> > > > just discovered this because of a major clean-up activity - if there
> > are
> > > > only
> > > > very few years affected, users might not even notice that they are
> > > > reporting
> > > > deleted data.
> > > >
> > > > Currently running on 2.22, build 21765, Standard Ubuntu 14.04 &
> > OracleJava
> > > > 8.
> > > >
> > > > Thanks for checking on that,
> > > >
> > > > Uwe<catalina.out.2016-02-18>
> > > > _______________________________________________
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> > > >
> > > >
> > > >
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> > > >
> > > >
> > >
> > >
> > > --
> > > Lars Helge Øverland
> > > Lead developer, DHIS 2
> > > University of Oslo
> > > Skype: larshelgeoverland
> > > http://www.dhis2.org <https://www.dhis2.org/>
> >
> > _______________________________________________
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> >
> 
> 
> 
> -- 
> Morten