Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
HBase >> mail # user >> Question


+
Dalia Sobhy 2012-11-10, 22:11
+
Ted Yu 2012-11-10, 22:25
+
Dalia Sobhy 2012-11-11, 16:07
+
Ted Yu 2012-11-11, 16:24
+
Dalia Sobhy 2012-11-11, 19:42
+
yuzhihong@... 2012-11-11, 20:31
+
Dalia Sobhy 2012-11-13, 22:14
+
Ted Yu 2012-11-13, 22:29
+
Dalia Sobhy 2012-11-14, 09:09
+
Dalia Sobhy 2012-11-15, 00:07
Copy link to this message
-
Re: Question
Take a look at
src/main/java/org/apache/hadoop/hbase/client/coprocessor/LongColumnInterpreter.java
for an example ?

Since ColumnInterpreter involves dealing with Java generics, I feel you can
try hive which doesn't require coding in Java - at least initially.

Cheers

On Wed, Nov 14, 2012 at 4:07 PM, Dalia Sobhy <[EMAIL PROTECTED]>wrote:

>
> 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:
> > >>>>>>
> > >>>>