Cubism.js
4 weeks ago by jm
'a D3 plugin for visualizing time series. Use Cubism to construct better realtime dashboards.' Apache-licensed; nice realtime update style; overlays multiple data sources well. I think I now have a good use-case for this
javascript
library
visualization
dataviz
tsd
data
apache
open-source
4 weeks ago by jm
Apache Kafka
february 2012 by jm
'Kafka provides a publish-subscribe solution that can handle all activity stream data and processing on a consumer-scale web site. This kind of activity (page views, searches, and other user actions) are a key ingredient in many of the social feature on the modern web. This data is typically handled by "logging" and ad hoc log aggregation solutions due to the throughput requirements. This kind of ad hoc solution is a viable solution to providing logging data to an offline analysis system like Hadoop, but is very limiting for building real-time processing. Kafka aims to unify offline and online processing by providing a mechanism for parallel load into Hadoop as well as the ability to partition real-time consumption over a cluster of machines.' neat
kafka
linkedin
apache
distributed
messaging
pubsub
queue
incubator
scaling
february 2012 by jm
Lucene Utilities and Bloom Filters - Greplin:tech
april 2011 by jm
'Storing 50,000 2.5KB items in a traditional hash set requires over 125MB, but if you're willing to accept a 1-in-10,000 false positive rate on lookups, [this] bloom filter requires under 500KB' - interesting variation on the basic concept. Java, Apache-licensed
search
bloom-filters
greplin
open-source
apache
false-positives
from delicious
april 2011 by jm
Akka
march 2011 by jm
'platform for event-driven, scalable, and fault-tolerant architectures on the JVM' .. Actor-based, 'let-it-crash', Apache-licensed, Java and Scala APIs, remote Actors, transactional memory -- looks quite nice
scala
java
concurrency
scalability
apache
akka
actors
erlang
fault-tolerance
events
from delicious
march 2011 by jm
ElasticSearch
february 2010 by jm
nifty; Apache-licensed distributed, RESTful, JSON-over-HTTP, schemaless search server with multi-tenancy
search
distributed
rest
json
apache
elasticsearch
http
from delicious
february 2010 by jm
DDOS mystery involving Linux and mod_ssl
october 2009 by jm
connections to brutus.apache.org, "GET / HTTP/1.1", massive HTTPS DDOS. no idea what's going on
apache
asf
ddos
https
httpd
mod_ssl
from delicious
october 2009 by jm
glTail.rb - realtime logfile visualization
july 2009 by jm
'View real-time data and statistics from any logfile on any server with SSH, in an intuitive and entertaining way', supporting postfix/spamd/clamd logs among loads of others. very cool if a little silly
dataviz
visualization
tail
gltail
opengl
linux
apache
spamd
spamassassin
logs
statistics
sysadmin
analytics
animation
analysis
server
ruby
monitoring
logging
logfiles
july 2009 by jm
Launchpad is now open source
july 2009 by jm
Canonical _finally_ open source (under the AGPL) their bug tracker/project hosting platform. yay! here's hoping it's reasonably easy to deploy. maybe it would be viable for the ASF... hmm
canonical
launchpad
open-source
apache
hosting
projects
ubuntu
agpl
july 2009 by jm
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