presentation: All content tagged as presentation in NoSQL databases and polyglot persistence
Even if the Yfrog presentation on their usage of HBase has only 9 slides, you’ll find some very interesting notes in there. Here’s a couple that caught my eyes:
- 10k concurrent requests/second
- 4 HBase clusters ranging from 50TB to 1PB
- Having more smaller nodes is better than having less faster bigger nodes
- We use sub $1k desktop grade servers, they work great!
- Inexpensive 2TB Hitachi disks (~$100) work great, get more units for your money
- Load test HBase with YCBS: just leave it running for a week, if nothing crashes, you are good.
Make sure you are checking all the slides below.
Coda Hale and Ryan Kennedy presented recently about Riak and Scala usage at Yammer providing details about choosing Riak and sharing some of the leassons learned while using Riak for building Streamie.
Pere Urbón-Bayes must check slides deck on graph databases and their applicability. I like this graph database products slide most:
- Neo4j: open source database NoSQL graph
- Dex: the high performance graph database
- HyperGraphDB: an IA and semantic web graph database
- Infogrid: the Internet graph database
- Sones: SaaS dot Net graph database
- VertexDB: high performance database server
By the way I’ve heard Pere (@purbon) is currently looking for a job ;-).
Fantastic presentation from Jon Moore on why Comcast (enterprises?) is
not interested in NoSQL databases:
- it is not for massive scale
- it is not for high performance
- it is not for handling Big Data
- NoSQL databases still carry risks and require more ramp-up and investment
- it is for the distributed nature of NoSQL databases, including multi-data center support
- it is for operational scalability and operational friendliness of NoSQL databases
You can get the PDF from ☞ here.
While CouchOne is focused on getting CouchDB on the mobiles — CouchDB is available on Android and probably coming to iOS, Cloudant, the other CouchDB oriented company, is focused on CouchDB horizontal scalability by providing as open source and hosting BigCouch.
Recently Cloudant hosted a webinar on scaling out CouchDB with BigCouch. You can watch the video and slides embedded below:
In a future post I’ll cover more details about how BigCouch is scaling CouchDB.
I particularly liked the slide about the Hadoop ecosystem:
Found a very informed and detailed presentation about graph databases from Marko Rodriguez, covering:
- graph structures, algorithms, and algebras
- graph databases and the property graph
- TinkerPop open-source graph product suite
- real-time, real-world use cases for graphs
Make sure to set aside enough time to go through the 120+ slides as they are definitely worth your time.