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Cassandra

MongoDB NOSQL outperforms Cassandra and Couchbase?

  MongoDB NOSQL outperforms Cassandra and Couchbase? Is this true A new independent study shows that MongoDB outperforms key value stores. The results demonstrate that MongoDB provides greater scalability than NoSQL vendors Cassandra and Couchbase in all tests, by as much as 13x. Download the report to access detailed performance results. https://www.mongodb.com/collateral/scalability-benchmarking-mongodb-and-nosql-systems-report I always heard …

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Why not Python nor NOSQL Cassandra? Did Friend make your 5% in 1 day from our first trading alert?

Why not Pythonn nor NOSQL Cassandra? You make your 5% in 1 day from our first trading alert? Don’t hold US dollars! SO we got two streams in this email: Technical vs general trading These are sorted by popularity! Why not Python or Pandas like AQR capital management does?  Why not Cassandra NOSQL database like …

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Why not Python/Pandas like AQR capital management does? Why not Cassandra NOSQL database like BlueMountain Capital does?

Why not Python or Pandas like AQR capital management does?  Why not Cassandra NOSQL database like BlueMountain Capital does? Questions about yesterday from a newsletter subscriber: Why not Python/Pandas like AQR does? See quote by Roni Israelov here: http://pandas.pydata.org/ Or Cassandra like BlueMountain Capital does? These firms spend millions trying to solve the same problems …

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Has anyone ever used Cassandra NOSQL database memory mapped files?

Has anyone ever  used Cassandra NOSQL database memory mapped files? I am looking for feedback or comments on the use of this NOSQL database. How is the performance vs Redis opr MongoDB https://wiki.apache.org/cassandra/FAQ http://www.safaribooksonline.com/library/view/cassandra-high-performance/9781849515122/ch04s11.html http://planetcassandra.org/blog/cassandra-11-reading-and-writing-from-sstable-perspecitve/ http://blog.comsysto.com/2013/04/12/cassanrda-1-1-tuning-for-frequent-column-updates/ Join my FREE newsletter to see how this work   NOTE I now post my TRADING ALERTS into my …

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How to use SQL Database for Algo Trading with HFT Potential with SQL Server MYSQL NOSQL MongoDB Redis Cassandra R Java

How to use SQL Database for Algo Trading with HFT Potential with SQL Server MYSQL NOSQL MongoDB Redis Cassandra R Java This has been posted for my QuantLabs.net Premium Members Notes and Video Demos of SQL Database for Algo Trading with HFT Potential with SQL Server MYSQL NOSQL MongoDB Redis Cassandra R Java This happens …

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Which RDMS or NOSQL database do you use for R? MySQL, Cassandra, HBase, MongoDB, Oracle, PostgreSQL, CouchDB, SQLite?

Which RDMS or NOSQL database do you use for R? MySQL, Cassandra,  HBase, MongoDB, Oracle, PostgreSQL, CouchDB, SQLite? Join my FREE newsletter to say what gets posted about R ! This R survey is kind of important. It will show a few things: Which R most users use regardless if they are commercial vs open …

Which RDMS or NOSQL database do you use for R? MySQL, Cassandra, HBase, MongoDB, Oracle, PostgreSQL, CouchDB, SQLite? Read More »

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   Join my FREE newsletter to learn more about this This was sent from Youtube visitor (TimeStored) as a comment for the video: They commented: Hi Bryan, I would say the core …

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Youtube vidYoutube video: cool million dollars to store tick database with kdb no need for nosql like Hadoop, Cassandra, MongoDB, Redis

  Youtube vidYoutube video: cool million dollars to store tick database with kdb no need for nosql like Hadoop, Cassandra, MongoDB, Redis Learn to see what my open source database will be through my FREE newsletter         NOTE I now post my TRADING ALERTS into my personal FACEBOOK ACCOUNT and TWITTER. Don’t …

Youtube vidYoutube video: cool million dollars to store tick database with kdb no need for nosql like Hadoop, Cassandra, MongoDB, Redis Read More »

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 …

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No to MYSQL: How to use Cassandra with R and RCasandra versus Hadoop and HBase

No to MYSQL: How to use Cassandra with R and RCasandra versus Hadoop and HBase MYSQL looked good but can get pricey. Cassandra is true free open source and Twitter uses it! http://blog.milford.io/2010/06/installing-apache-cassandra-on-centos/ HBase vs Cassandra: why we moved Learn more on how I proceed with this with R as part of my high frequency trading: …

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