Tag Archives: MondoDB

No to NOSQL like MondoDB or Cassandra for institutional firms like hedge funds or banks for in memory database, hello kdb is fastest processing

No to NOSQL like MondoDB or Cassandra for institutional firms like hedge funds or banks  for in memory database, hello kdb is fastest

 

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This was sent from Youtube visitor (TimeStored) as a comment for the video:

They commented:

Hi Bryan,

I would say the core strengths of kdb are:
– q language is very powerful
– kdb is based on ordered lists, SQL is based sets, this difference makes a lot of time series queries much easier.
– it’s fast

 

Also:

i Bryan,

The core strengths of kdb are:
– q language is very powerful
– kdb is based on ordered lists, SQL is based sets, this difference makes a lot of time series queries much easier.
– it’s fast.

I can easily recommend a career in it if you want an interesting, challenging programming job.

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Best explanation of Cassandra vs MondoDB: Why I may switch to MongoDB for better R support? Redis is less popular

 

Best explanation of Cassandra vs MondoDB: Why I may switch to MongoDB for  better R support? Redis is less popular

http://stackoverflow.com/questions/3391586/mongodb-on-ec2-server-or-aws-simpledb

Benefits of Cassandra with Sharding:

https://www.cloudkick.com/blog/2010/mar/02/4_months_with_cassandra/

http://comments.gmane.org/gmane.comp.db.cassandra.user/4122

Clients to Mongo including R (better R client support for MondoDB as compared to Cassandra)

http://www.mongodb.org/display/DOCS/Drivers

2 potential R package client repositories for MongoDB

https://github.com/tc/RMongo

https://github.com/gerald-lindsly/rmongodb

MongoDB does still do sharding:

http://www.mongodb.org/display/DOCS/Sharding+Introduction

This is a primary reasons why I would switch from Redis. An example of usage of R with MongoDB using high frequency market data:

http://www.r-bloggers.com/i-see-high-frequency-data/

https://github.com/kafka399/Rproject/blob/master/HFD/showHFD.R

There are many other examples found on R-Bloggers.com

 

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