open-source, networked, in-memory, key-value data store

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Masterless Service Discovery w/ Docker [on hold]

Why not use an existing solution/NIH syndrome issue? I'd be happy with an answer that perfectly fulfilled my design goals. To do so, it would have to be backed by Cassandra or Redis. [I use ...
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22 views

How to use Redis properly on big object

I have a relatively big object that is the wrapper of a HashMap that has 200 K entries. This HashMap wrapper, after being serialized, would take 67 Megabytes. Because this big object is the result of ...
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1answer
32 views

Backing up messages in S3 within a Storm topology

In my project we are trying to build up a KIND-of-a-lambda storm based architecture. The component would be responsible for indexing the site usage events so we expect a quite massive random load. The ...
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129 views

What is the best procedure to setup real-time data transfers with Redis?

I have setup a RESTful API using Ruby on Rails for an iPhone application.There are some instances, however, that I would like to use Real-Time Pub/Sub data-transfers, I have drawn up 2 potentials: ...
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95 views

Safe caching (i.e. memoizing) with locks in Redis

I have an access token that needs to be used by several parts of our system. It expires after a certain amount of time, at which point any component in the system needs to be able to get a new one. ...
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120 views

Redis Parent-Child Caching Strategy

We have trouble with our current caching mechanism and tracking which items need cleared out when an object changes. We are using Enyim Memcached which does not have Cache Dependencies. I have ...
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1answer
4k views

How to implement a message queue over Redis?

Why Redis for queuing? I'm under the impression that Redis can make a good candidate for implementing a queueing system. Up until this point we've been using our MySQL database with polling, or ...
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123 views

Namespace conventions in Redis

My Java code has packages that look like, e.g. me.unroll.monitoringclient And we've largely followed this convention through - e.g., for RabbitMQ our queue names are things like ...
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1answer
254 views

Redis & MongoDB for Metrics Platform

I'm in the process of writing an app that will ultimately display analytics to the user. I've written a service that collects data from an API. This data will then be processed, stored, then when the ...
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2answers
607 views

Redis strategy for activity log data

Our application requires an activity log of actions that a user has done. For example: 3/19/2013 ------------- 9:37 AM Chuck Norris scrapped 3 robots. 9:15 AM Chuck Norris fought 3 robots. ...
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1answer
1k views

Why would I use Redis? [closed]

I am currently using Node, Express and MongoDB (with Mongoose) as a datastore, I hear Redis is a persistant Memcached, but why would I use this? Is Memcached better if I'm using Mongo? What's its ...
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1answer
299 views

2 Servers 1 Database - Can I use Redis?

Ok I have a couple of questions here. First let me give you some background information. I'm starting a project where I have a node.js server running my application and my website running on another ...
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1answer
175 views

In-memory DB to perform intersects on set slices

I have a specific programming need where I need to efficiently store large sorted sets in memory, query them for ranges, and intersect them against other sets that are also queried for ranged. I am ...
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1answer
475 views

How would you use Redis for Exception Handling?

I was reading this transcript of an interview with a GitHub developer and he was describing how they use Redis: Q: You mentioned using Redis. How do you use that? A: We use Redis for exception ...
2
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1answer
518 views

Querying key/value store

I don't know whether this question is reasonably answerable (and therefore will be closed), but I will take my chances: What are the possible problems (and solutions), one might encounter, when ...
2
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1answer
149 views

Semi-securely storing data in a remote key-value store, ensuring minimal data corruption/tampering

I'm bashing around a few ideas for storing usage data (similar to google analytics) for some Javascript products that we are working on. Unfortunately as yet we don't quite know 100% what data we ...
12
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1answer
3k views

Redis vs Zookeeper

It seems silly to compare these two servers considering that they're meant for very different things. But if you think about it, they can do lots of similar things: store configuration data, ...