Rserve:
* initialize R- load data, code, packages
* Listen for incoming connections
* Fork on accept... multiple client(s)' processes at same time (if multiple processers)
* Communication:
-TCP/IP
- Unix sockets
- QAP binary protocol
- HTTP/HTTPS
- WebSockets - persistent browser / R connection
- allows switching of types...
* Rserve security
- authentication, encryption, user separation
Uses of Rserve (goals/features):
* FastRWeb* Rserve.cluster - as backend for snow/parallel... no more need for ssh
* Rserve + RCassandra - move computation to the data
* R in the cloud
- R console in the cloud
- code/notebook sharing, reporting, interactive graphics
More on FastRWeb
* Maps URLs to script executionhttp://foo/cgi-bin/R/bar?n=100 becomes source("../bar.R")
* Requires CGI or PHP or all-in-one Rserve solution
* Very fast response, parallel access
* Automatically supports most common tasks
* Very easy to build web-based tasks
Rserve.cluster
* Easy to get started* Uses SNOW
* pre-loading of data, packages, code
* shared initial state (don't have to push data, etc.)
Rserve and the Cloud
* The Cloud: R's in-memory model is "in" again* Faster graphics, WebGL, etc.
* Interactive Web Graphics
* Large data in the browser
* The wplot command looks really neat
Integration with knitr:
* Integration with Rmarkdown (via knitr, markdown) for R-web-notebook functionalityStreaming:
* no R API for streaming (all ad-hoc right now) - Need something to unify/standardize this* Asynchronous evaluation: background
- Allows trigger functions associated with external events
FastRWeb links:
R-forge page:
http://www.rforge.net/FastRWeb/
Package:
http://cran.r-project.org/web/packages/FastRWeb/index.html
Package Index:
http://www.rforge.net/doc/packages/FastRWeb/html/00Index.html
R-blogger:
http://www.r-bloggers.com/tag/fastrweb/
A setup blog page from another blogger:
http://jayemerson.blogspot.com/2011/10/setting-up-fastrwebrserve-on-ubuntu.html
