open-source, networked, in-memory, key-value data store
1
vote
1answer
131 views
What is a good practice to push notifications in a “near real-time” delay in this case?
I want to enable some real-time notifications about friend's activities (social network).
Technical context is: Webapp calling backend (REST API's).
Scenario is:
Kevin follows Bob.
When Bob ...
0
votes
1answer
44 views
Should I persist notification before or after publishing it through Redis pub/sub?
I'm implementing a mechanism to notify a group of users about newly inserted blog comments.
The architecture uses the Redis Pub/Sub mechanism.
By definition, the pub/sub mechanism aims to propagate ...
2
votes
0answers
47 views
Managing setTimeouts and setInterval in a distributed environment
I am building a turnbased game on nodejs using socket.io and redis as the datastore. I am planning on hosting the game on AWS opsworks with the ability to scale by adding more nodes.
How should I ...
1
vote
2answers
818 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.
...
0
votes
1answer
59 views
Storing primary keys of objects in Redis and then querying them in Postgres through Django
This is probably my second time posting in programmers. I'm usually on stackoverflow but this question is more fit for the community here.
All suggestions, advice and insight on this matter is ...
1
vote
0answers
185 views
How to tell SignalR Notifications Hub that there is a new notification without having SignalR poll on that table
I'm developing a push-notifications system for my ASP.NET MVC app.
The idea is to use Redis for queueing, ServiceStack for queue processing and SignalR for push-notifications to implement a system ...
0
votes
0answers
73 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 ...
0
votes
1answer
65 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 ...
0
votes
0answers
143 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:
...
14
votes
1answer
5k 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 ...
0
votes
0answers
133 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. ...
0
votes
0answers
158 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 ...
0
votes
0answers
201 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
...
0
votes
1answer
289 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 ...
1
vote
1answer
306 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 ...
2
votes
1answer
183 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 ...
2
votes
1answer
510 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 ...
13
votes
1answer
4k 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, ...
2
votes
1answer
571 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
votes
1answer
164 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 ...
