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Re: InstantDB: Fw: InstantDB and Large Object


Mattia

By default, InstantDB will instantiate results sets in memory - it assume
that they will usually be small. If you are selecting very large parts of a
table, then you should set the database property:

resultsOnDisk=1

in the .prp file. This will cause results set to be stored on disk (in the
"tmp" directory). There are some related caching properties: resultsSetCache
and resultsSetCacheAmount. See

http://instantdb.enhydra.org/software/documentation/props.html

for details.

Provided transactions complete, you should not loose data.

Regards

Pete

--

Peter Hearty                         peter.hearty@lutris.com
Lutris Technologies (UK)        http://www.lutris.com
----- Original Message -----
From: "Mattia Marra" <mattia.marra@csitalia.com>
To: <instantDB@enhydra.org>
Sent: Tuesday, October 17, 2000 8:37 AM
Subject: InstantDB: Fw: InstantDB and Large Object


>
>  > >  Hi all,
> > > I have a question:
> > >
> > > What is the performance of IstantDb using large object and alot of
data?
> > >
> > > I am testing IstantDb performance and I did the following test:
> > >
> > > I inserted a million of record (every record had 4 fields, every field
> was a varchar(32))
> > > I did a select on the table that had the million of record, The
istantDb
> gave a exception (Out memory)
> > > after i did a select on a table with few data, the select don't go on
> data base.
> > >
> > > Question:
> > >
> > > What are the performance of IstantDB if I have a large number of data
in
> it (millions) if crash the Server using
> > > RMI driver can I lose data?
> > >
> > > Thanks
> > >
> > >
> > >
>
****************************************************************************
> ******************
> > > Mattia Marra
> Tel.:   +39 02 6733441
> > > CS Communication & Sistems Italia S.p.A.                    Fax :  +39
> 02 6704169
> > > URL: http://www.csitalia.com
> > > Piazza della Repubblica, 32
> > > 20124 Milano - ITALIA
> > >
>
****************************************************************************
> *******************
>
>
> --------------------------------------------------------------------------
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