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Posted to common-user@hadoop.apache.org by edward yoon <we...@udanax.org> on 2007/12/12 02:11:29 UTC
RE: Question about hbase relation shell
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 <we...@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 <we...@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 <we...@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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