New Question Version: I've got the opportunity to spend 3 months getting good at something, its going to be either a NoSQL technology like Cassandra or optimising relational database systems. I ...
I run a middle size community and some time ago I started to develop social capabilities such as follow, status update, wall etc. For some reason i thought that Cassandra was the right tool for the ...
Currently we are working on some storage problems for log data from various servers and communication message logs (HTTP(S), XMPP). There will be many write operations and for read operations we will ...
I've been trying to figure out how to use HBase/Cassandra for a token system we're re-implementing. I can probably squeeze quite a lot more from MySQL, but it just seems it has come to clinging on to ...
I have a data-intensive application that desperately needs a database make-over. The general data model: There are records with RIDs, grouped together by group IDs (GID). The records have arbitrary ...
I'm currently developing a web-app by myself and have made it a point to use descriptive variable and method names (sometimes at the expense of brevity) in order to minimize commenting. The plan was ...
Scuttlebutt Reconciliation in the paper “Efficient Reconciliation and Flow Control for Anti-Entropy Protocols”
I am reading the paper "Efficient Reconciliation and Flow Control for Anti-Entropy Protocols"! , I couldn't clearly understand Section 3.2 "Scuttlebutt Reconciliation". Here I extract out some ...
Cassandra & HBase both do not efficiently support storage of blobs like images. Storing directly on HDFS stresses the Namenode because of huge number of files. Facebook uses Haystack for images ...
"bloom filter allows us to store data in constant space" Can someone explain what exactly does that sentence means?