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0answers
29 views

dynamic api code generation in nodejs

We are using nodejs and cassandra for backend stuff. In past few months we wrote same CRUD code for different apps. I am thinking of some way to automatically generating CRUD code. I came across ...
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0answers
63 views

How to aggregating data with Cassandra and Apache Spark using counters?

I using Spark Streaming to roll up the analytic events and push to Cassandra 2.1+ database where data model resembles: CREATE TABLE rollup ( metric_1 text, metric_1_value counter ); The ...
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0answers
53 views

Handling thousands of cassandra insert/updates

I have mobile app with backend server running in nodejs with cassandra as database. The app is like social network where you can share pictures and follow other people. Some operation like updating ...
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4answers
397 views

Are NoSQL databases the best choice for more efficiently querying large amounts of data?

We are planning to build a travel website in which we will be integrating multiple APIs (eg. DOTW, GTA, Expedia) for Hotels. I have initially tried to use MySQL but since there are huge amounts of ...
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0answers
63 views

Economics of scaling, denormalizing NoSQL for personalized content

I am using Cassandra for a data intensive app. With relatively little operations and deployment experience, the expertise I am looking for is someone that can read the example below and decide whether ...
4
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2answers
2k views

Document-oriented vs Column-oriented database fit

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 ...
2
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1answer
231 views

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 ...
6
votes
3answers
559 views

My Cassandra consultant left me and now I'm thinking about reverting to mysql [closed]

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 ...
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5answers
622 views

Should I use a relational datamodel or Cassandra with ColumnFamily based indexes?

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 ...
4
votes
2answers
374 views

Using HBase or Cassandra for a token server

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 ...
1
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2answers
575 views

what is storing data in constant space?

"bloom filter allows us to store data in constant space" Can someone explain what exactly does that sentence means?
2
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3answers
360 views

Where should I include comments in my “self-documenting code”?

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 ...