From: Guillaume Marcais Date: 2006-04-29T21:51:30+09:00 Subject: Re: [ANN] rq-2.3.2 I couldn't find the changes list. What is new in this version? Guillaume. Le 28 avr. 06, � 17:36, Ara.T.Howard a �crit : > > NAME > rq v2.3.2 > > SYNOPSIS > rq (queue | export RQ_Q=q) mode [mode_args]* [options]* > > URIS > > http://raa.ruby-lang.org/project/rq/ > http://codeforpeople.com/lib/ruby/rq/rq-2.3.2/README > http://www.linuxjournal.com/article/7922 > > DESCRIPTION > ruby queue (rq) is a zero-admin zero-configuration tool used to > create > instant linux clusters. rq requires only a central nfs filesystem > in order > to manage a simple sqlite database as a distributed priority work > queue. > this simple design allows researchers to install and configure, in > only a > few minutes and without root privileges, a robust linux cluster > capable of > distributing processes to many nodes - bringing dozens of powerful > cpus to > their knees with a single blow. clearly this software should be > kept out of > the hands of free radicals, seti enthusiasts, and one mr. j safran. > > the central concept of rq is that n nodes work in isolation to pull > jobs > from an centrally mounted nfs priority work queue in a synchronized > fashion. > the nodes have absolutely no knowledge of each other and all > communication > is done via the queue meaning that, so long as the queue is > available via > nfs and a single node is running jobs from it, the system will > continue to > process jobs. there is no centralized process whatsoever - all > nodes work > to take jobs from the queue and run them as fast as possible. this > creates > a system which load balances automatically and is robust in face of > node > failures. > > although the rq system is simple in it's design it features powerful > functionality such as priority management, predicate and sql query , > compact > streaming command-line processing, programmable api, hot-backup, and > input/capture of the stdin/stdout/stderr io streams of remote jobs. > to date > rq has had no reported runtime failures and is in operation at > dozens of > research centers around the world. > > > enjoy. > > -a > -- > some people, sweet and attractive, and strong and healthy, happen to > die > young. they are masters in disguise teaching us about impermanence. > - h.h. the 14th dali lama > >