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From edward yoon <webmas...@udanax.org>
Subject RE: Question about hbase relation shell
Date Wed, 12 Dec 2007 01:11:29 GMT

FW:

Following your suggestion, i read the map/reduce packets under hbase.  There are some ideas
shown the following:


     1  Can i store the index files in hadoop, just like the nutch what to do ?   And  may
you give me some better solutions?
     2  In lucence index searching about hbase columns, can i do index searching from the
index files stored in the hadoop ?

Above as shown,  i need do more code modifications for support these functions. May you borrow
your experience? And how to do these ?



------------------------------

B. Regards,

Edward yoon @ NHN, corp.
Home : http://www.udanax.org

________________________________

Date: Wed, 12 Dec 2007 09:06:47 +0800
From: gaozhi@teltel.com
To: webmaster@udanax.org
Subject: Re: Question about hbase relation shell

Dear edward yoon,

     I am ok, thanks.
     Now, i am in practice about these ideas.

thanks.
gaozhi


2007/12/12, edward yoon <webmaster@udanax.org>:

Hi, gaozhi.
I'd like to move to hadoop-user@lucene.apache.org If you are ok.


------------------------------

B. Regards,

Edward yoon @ NHN, corp.
Home : http://www.udanax.org


________________________________

Date: Wed, 12 Dec 2007 00:04:16 +0800

From: gaozhi@teltel.com
To: webmaster@udanax.org
Subject: Re: Question about hbase relation shell

Dear edward yoon,

     Firstly, thank for your help.

     Following your suggestion, i read the map/reduce packets under hbase.  There are some
ideas shown the following:
     1  Can i store the index files in hadoop, just like the nutch what to do ?   And  may
you give me some better solutions?
     2  In lucence index searching about hbase columns, can i do index searching from the
index files stored in the hadoop ?

    Above as shown,  i need do more code modifications for support these functions. May you
borrow your experience? And how to do these ?


thanks

gaozhi


2007/12/6, edward yoon <webmaster@udanax.org>:

>> Can the hbase cooperate with lucence? That is, whether or not the family columns
can be  indexed  by  lucuence, and how to using them smoothly?

Yes, see hbase/mapred package.
I think you can use the lucene.


But, I'm not sure that Right now Hbase is reliable storage system.


------------------------------

B. Regards,

Edward yoon @ NHN, corp.
Home : http://www.udanax.org


________________________________

Date: Thu, 6 Dec 2007 10:43:07 +0800

From: gaozhi@teltel.com
To: webmaster@udanax.org
Subject: Re: Question about hbase relation shell

Dear edward yoon,

     Our company is called Teltel, which website is www.teltel.com. It is a company based
sip protocol for electron consume products. In our application, we used many cluster projects
from kenerl to top applications, such mysql cluster, lvs and our developed dht network.
    For the petabytes requirement, we need make a perfect design for it. So we look into the
hadoop, hbase, lucence projects, etc. We are very interesting in the hbase , liking the Bigtables
based on google file system.
    Can the hbase cooperate with lucence? That is, whether or not the family columns can be
 indexed  by  lucuence, and how to using them smoothly?

    The following is my informations:
      Teltel id : gaozhi@teltel.com
      msn :      zhang.gaozhi@teltel.com

gaozhi

thanks


2007/12/5, edward yoon < webmaster@udanax.org>:

I tryed hadoop + hbase on *** node (*4 processors)
but, I didn't figure out how much, what, how long ...   , yet.
Also, I don't benchmarking test because other guys working.

I'll anounce these works to apache wiki, after recieve the reports from guys at other team.
and,  i'd like to add your information to apache wiki, if you are ok.

thanks,
ed yoon.

------------------------------

B. Regards,

Edward yoon @ NHN, corp.
Home : http://www.udanax.org


________________________________

Date: Wed, 5 Dec 2007 13:59:18 +0800
From: gaozhi@teltel.com
To: webmaster@udanax.org
Subject: Re: Question about hbase relation shell


Dear edward yoon,

       Firstly, thanks for your responsibility.
       By the way, may you give me some your experience information about hbase performance
and stablity? In our application, i may need handle many amount of the records,  such as the
 tetabytes or  Petabytes level.
      Also, when we will have some our experience data, i will send you the data. If  you
want to  know  our information, let me know and i am glad to email them to you.

thanks

gaozhi


2007/12/5, edward yoon <webmaster@udanax.org>:

oh. please use the TRUNK version.
relational algebraic query commands will be added to 0.16 version.

thanks,
ed yoon.

------------------------------

B. Regards,

Edward yoon @ NHN, corp.
Home : http://www.udanax.org


________________________________

Date: Wed, 5 Dec 2007 11:37:09 +0800
From: gaozhi@teltel.com
To: webmaster@udanax.org
Subject: Question about hbase relation shell


Dear,

     I am looking into the hbase project.  As shown in hadoop and hbase guide, i had set up
the platform and used the hbase shell usage. But descriped in Example Of Relational Algebraic
Query Command Uses, i could not do these commands in our testbed liking the following:

Hbase Shell, 0.0.2 version.
Copyright (c) 2007 by udanax, licensed to Apache Software Foundation.
Type 'help;' for usage.

Hbase> Result = Relation.Projection('year','legnth');
Syntax error : Type 'help;' for usage.
Message : Encountered "Result" at line 1, column 2.
Hbase>

   If some wrong, waiting for your answers and thanking for your denotion.

thanks

gaozhi
_________________________________________________________________
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