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RE: Question
Dalia Sobhy 2012-11-15, 00:07

I cannot understand you TEd ?

Can you please tell me how to initialize the ColumnInterpreter instance?

I am using String for diagnosis qualifier.

Which is better in aggregate functions : hbase OR hive?

Thanks in advance,

> Subject: Re: Question
> From: [EMAIL PROTECTED]
> Date: Wed, 14 Nov 2012 11:09:26 +0200
> To: [EMAIL PROTECTED]
>
> String
>
> Sent from my iPhone
>
> On 2012-11-14, at 12:30 AM, "Ted Yu" <[EMAIL PROTECTED]> wrote:
>
> > What number format did you use for the cardiac column family ?
> > I assume you store double as byte array.
> >
> > Cheers
> >
> > On Tue, Nov 13, 2012 at 2:14 PM, Dalia Sobhy <[EMAIL PROTECTED]>wrote:
> >
> >> Hello Ted:
> >>
> >> I have a patient table which contains two column families: info and
> >> cardiac.
> >>
> >> I need to count the number of people who suffer from a particular
> >> diagnosis within cardiac.
> >>
> >> For instance the number of patients suffering from "heart failure"
> >>
> >> Sent from my iPad
> >>
> >> On Nov 13, 2012, at 11:00 PM, "Ted Yu" <[EMAIL PROTECTED]> wrote:
> >>
> >>> Currently http://hbase.apache.org/book.html gives me networks error.
> >>> You should be able to find example of how Java client connects to HBase
> >> cluster.
> >>>
> >>> How ColumnInterpreter is initialized depends on your schema. Can you
> >> tell us more about your schema ?
> >>>
> >>> Thanks
> >>>
> >>> On Tue, Nov 13, 2012 at 12:40 PM, Dalia Sobhy <
> >> [EMAIL PROTECTED]> wrote:
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> Begin forwarded message:
> >>>>
> >>>>> From: Dalia Sobhy <[EMAIL PROTECTED]>
> >>>>> Date: November 12, 2012, 10:12:57 PM GMT+02:00
> >>>>> To: <[EMAIL PROTECTED]>
> >>>>> Subject: RE: Question
> >>>>>
> >>>>> Thanks,
> >>>>>
> >>>>> But how to initialize the ColumnInterpreter, I mean how to link it
> >> with a table.
> >>>>>
> >>>>> Another aspect, its my first time to use java classes for hbase, I was
> >> using thrift server to connect to hbase. But due to the need for aggregate
> >> functions i shifted to hbase 0.92.
> >>>>>
> >>>>> So could you explain to me in brief how are the java classes connected
> >> to hbase server.
> >>>>>
> >>>>> Thanks in advance :D
> >>>>>
> >>>>> Date: Mon, 12 Nov 2012 11:35:58 -0800
> >>>>>
> >>>>> Subject: Re: Question
> >>>>> From: [EMAIL PROTECTED]
> >>>>> To: [EMAIL PROTECTED]
> >>>>> CC: [EMAIL PROTECTED]
> >>>>>
> >>>>>
> >>>>> double is primitive type.
> >>>>> Replace with Double.
> >>>>>
> >>>>> Cheers
> >>>>>
> >>>>> On Mon, Nov 12, 2012 at 11:31 AM, Dalia Sobhy <
> >> [EMAIL PROTECTED]> wrote:
> >>>>>
> >>>>>
> >>>>> Syntax error on token "double", Dimensions expected after this token
> >>>>>
> >>>>> Pastebin link:
> >>>>> http://pastebin.com/dcvaMvLw
> >>>>>
> >>>>> I am trying to send it on the group but I dunno why hotmail disagrees
> >> and sends me postmaster failure so weird!!!
> >>>>>
> >>>>>
> >>>>>> CC: [EMAIL PROTECTED]
> >>>>>> From: [EMAIL PROTECTED]
> >>>>>> Subject: Re: Question
> >>>>>> Date: Sun, 11 Nov 2012 12:31:16 -0800
> >>>>>> To: [EMAIL PROTECTED]
> >>>>>
> >>>>>>
> >>>>>> What error did you get ?
> >>>>>> Please use pastebin to share.
> >>>>>>
> >>>>>> Thanks
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> On Nov 11, 2012, at 11:42 AM, Dalia Sobhy <
> >> [EMAIL PROTECTED]> wrote:
> >>>>>>
> >>>>>>>
> >>>>>>> Hi Ted,
> >>>>>>>
> >>>>>>> I am using hbase 0.92.1
> >>>>>>>
> >>>>>>> When I tried the following code I got errors:
> >>>>>>>
> >>>>>>> AggregateProtocol agg;
> >>>>>>> long rowcount = agg.getRowNum(ColumnInterpreter<string, int>,
> >> scan);
> >>>>>>>
> >>>>>>> double sum = aggregationClient.avg(TABLE_NAME, ci, scan);
> >>>>>>>
> >>>>>>> even though I tried it with String (s in capital) same errors, do
> >> u know why?
> >>>>>>>
> >>>>>>>> Date: Sun, 11 Nov 2012 08:24:29 -0800
> >>>>>>>> Subject: Re: Question
> >>>>>>>> From: [EMAIL PROTECTED]