hi J-D, how about the performance of BatchUpdate and multiple single-Update? in MapReduce jobs, if we use TableReduce, we only have a put() method to update the table, i'm wondering whether the put() method can use a BatchUpdate mechanism. Thanks.
2008/7/28 Jean-Daniel Cryans <[EMAIL PROTECTED]> > Marcus, > > If you are currently building upon 0.2.0, the way to retrieve multiple rows > is to use a scanner available from the client class HTable. The way to > batch > multiple rows updates is to use the BatchUpdate[ ] version of > HTable.commit > > Hope this helps, > > J-D > > On Mon, Jul 28, 2008 at 5:38 AM, Marcus Herou <[EMAIL PROTECTED] > >wrote: > > > Hi guys. > > > > Is there a way of retrieving multiple "rows" with one server call ? > > Something like MySQL's "where id in (a,b,c...) > > > > Or more like this. > > List<SortedMap<Text,byte[]>> rows = HTable.getRows(Text[] rowKeys); > > > > I'm building a framework around HBase which would benefit of handling > batch > > wise puts and gets. > > > > Kindly > > > > //Marcus > > > > > > > > -- > > Marcus Herou CTO and co-founder Tailsweep AB > > +46702561312 > > [EMAIL PROTECTED] > > http://www.tailsweep.com/ > > http://blogg.tailsweep.com/ > > >
