Open MPI logo

MTT Devel Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all MTT Users mailing list

Subject: Re: [MTT users] Reporter problems
From: Ethan Mallove (ethan.mallove_at_[hidden])
Date: 2008-01-31 12:28:57


It would be useful to know how long the queries were taking,
e.g., on date "x" when the database had "n" tuples. (Idea
for the stats table?) I was just going by my [possibly
unreliable] recollection of top-level summaries taking only
a few seconds.

-Ethan

On Wed, Jan/30/2008 03:14:20PM, Josh Hursey wrote:
> I'm seeing between 12 and 20 seconds on a fairly idle machine. We can
> likely do better. I'll dig into it this week[end] and see what I can do.
>
> 12 - 20 isn't too bad though considering the amount of data that query
> is returning. :)
>
> On Jan 30, 2008, at 2:52 PM, Ethan Mallove wrote:
>
> > I don't remember a "past 24 hour" summary taking "24
> > seconds". Are we seeing a slow down due to an accumulation
> > of results? I thought the week-long table partitions would
> > prevent this type of effect?
> >
> > -Ethan
> >
> >
> > On Wed, Jan/30/2008 11:00:46AM, Josh Hursey wrote:
> >> This maintenance is complete. The reporter should be operating as
> >> normal.
> >>
> >> There are a few other maintenance items, but I am pushing them to the
> >> weekend since it will result in a bit of a slowdown again.
> >>
> >> Thanks for your patience.
> >>
> >> Cheers,
> >> Josh
> >>
> >> On Jan 29, 2008, at 9:47 AM, Josh Hursey wrote:
> >>
> >>> The reporter should be responding much better now. I tweaked the
> >>> maintenance scripts so they no longer push nearly as hard on the
> >>> database. They are still running, but the query you specified
> >>> seems to
> >>> run in approx. 15-20 sec. with the current load.
> >>>
> >>> -- Josh
> >>>
> >>> On Jan 29, 2008, at 8:38 AM, Josh Hursey wrote:
> >>>
> >>>> For the next 24 - 48 hours this is to be expected. Sorry :(
> >>>>
> >>>> I started some maintenance work last night, and it is taking a bit
> >>>> longer than I expected (due to integrity constraint checking most
> >>>> likely). The maintenance scripts are pushing fairly hard on the
> >>>> database, so I would expect some slowdown with the reporter (and
> >>>> maybe
> >>>> client submits).
> >>>>
> >>>> If this becomes a substantial problem for anyone please let me
> >>>> know,
> >>>> and I may be able to shift this work to the weekend. In the mean
> >>>> time
> >>>> I'll see if I can reduce the load a bit.
> >>>>
> >>>> -- Josh
> >>>>
> >>>>
> >>>> On Jan 29, 2008, at 7:44 AM, Tim Prins wrote:
> >>>>
> >>>>> Hi,
> >>>>>
> >>>>> Using the reporter this morning it is being awfully slow, as in it
> >>>>> is
> >>>>> taking about 3 minutes to do a top level summary search for:
> >>>>> Date: past 24 hours
> >>>>> Org: IU
> >>>>> Platform name: IU_Odin
> >>>>>
> >>>>> I don't know whether this is a known problem or not. I seem to
> >>>>> recall
> >>>>> that after the last database upgrade such a search was taking
> >>>>> just a
> >>>>> few
> >>>>> seconds.
> >>>>>
> >>>>> Thanks,
> >>>>>
> >>>>> Tim
> >>>>> _______________________________________________
> >>>>> mtt-users mailing list
> >>>>> mtt-users_at_[hidden]
> >>>>> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
> >>>>
> >>>> _______________________________________________
> >>>> mtt-users mailing list
> >>>> mtt-users_at_[hidden]
> >>>> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
> >>>
> >>> _______________________________________________
> >>> mtt-users mailing list
> >>> mtt-users_at_[hidden]
> >>> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
> >>
> >> _______________________________________________
> >> mtt-users mailing list
> >> mtt-users_at_[hidden]
> >> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
> > _______________________________________________
> > mtt-users mailing list
> > mtt-users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
>
> _______________________________________________
> mtt-users mailing list
> mtt-users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users