Re: RDF store over HDFS/HBase

2009-03-24 Thread Andrew Newman
So one of the things that I've thought about with using HBase for RDF storage was whether to keep blank nodes or not. When I've spoke about supporting blank nodes I've always talked about requiring a global lock on the system in order to ensure that if you refer to a blank node on one node in the

Re: RDF store over HDFS/HBase

2009-03-24 Thread Ryan Rawson
...@hadoop.apache.org; core-user@hadoop.apache.org; core-...@hadoop.apache.org Subject: RDF store over HDFS/HBase Has anyone explored using HDFS/HBase as the underlying storage for an RDF store? Most solutions (all are single node) that I have found till now scale up only to a couple

RE: RDF store over HDFS/HBase

2009-03-24 Thread Ding, Hui
, 2009 4:07 PM To: hbase-u...@hadoop.apache.org; core-user@hadoop.apache.org; core-...@hadoop.apache.org Subject: RDF store over HDFS/HBase Has anyone explored using HDFS/HBase as the underlying storage for an RDF store? Most solutions (all are single node) that I have found till now scale up only

Re: RDF store over HDFS/HBase

2009-03-24 Thread Andrew Purtell
Have you heard of the Heart project? http://rdf-proj.blogspot.com/ I don't know of its current status. - Andy From: Amandeep Khurana Subject: RDF store over HDFS/HBase Has anyone explored using HDFS/HBase as the underlying storage for an RDF store?

RDF store over HDFS/HBase

2009-03-23 Thread Amandeep Khurana
Has anyone explored using HDFS/HBase as the underlying storage for an RDF store? Most solutions (all are single node) that I have found till now scale up only to a couple of billion rows in the Triple store. Wondering how Hadoop could be leveraged here... Amandeep Amandeep Khurana Computer

Re: RDF store over HDFS/HBase

2009-03-23 Thread Amandeep Khurana
progress. You can search in the email archive. -Original Message- From: Amandeep Khurana [mailto:ama...@gmail.com] Sent: Monday, March 23, 2009 4:07 PM To: hbase-u...@hadoop.apache.org; core-user@hadoop.apache.org; core-...@hadoop.apache.org Subject: RDF store over HDFS

Re: RDF store over HDFS/HBase

2009-03-23 Thread Philip M. White
On Mon, Mar 23, 2009 at 04:07:01PM -0700, Amandeep Khurana wrote: Has anyone explored using HDFS/HBase as the underlying storage for an RDF store? Most solutions (all are single node) that I have found till now scale up only to a couple of billion rows in the Triple store. Wondering how Hadoop

Re: RDF store over HDFS/HBase

2009-03-23 Thread stack
Philip: Anywhere we can go to learn more about the effort? What can we do in HBase to make the project more likely to succeed? Thank you, St.Ack On Mon, Mar 23, 2009 at 5:05 PM, Philip M. White p...@qnan.org wrote: On Mon, Mar 23, 2009 at 04:07:01PM -0700, Amandeep Khurana wrote: Has

Re: RDF store over HDFS/HBase

2009-03-23 Thread Philip M. White
On Mon, Mar 23, 2009 at 05:33:46PM -0700, stack wrote: Anywhere we can go to learn more about the effort? What can we do in HBase to make the project more likely to succeed? Right now we don't have anything of value to show you, but we plan to move on this pretty quickly. We're copying the

Re: RDF store over HDFS/HBase

2009-03-23 Thread Edward J. Yoon
/ I don't know of its current status.   - Andy From: Amandeep Khurana Subject: RDF store over HDFS/HBase Has anyone explored using HDFS/HBase as the underlying storage for an RDF store? -- Best Regards, Edward J. Yoon edwardy...@apache.org http://blog.udanax.org