mcroydon + sysadmin   122

FrontPage - Juju
For when you run out of buzzwords.
devops  sysadmin  todo 
october 2011 by mcroydon
logstash - open source log management
Log analysis software. Awesome mascot to boot.
log  logging  opensource  sysadmin 
august 2011 by mcroydon
devstructure/blueprint - GitHub
Looks at differences between default installs and knows how to use various package managers. Pretty hot. Via Daniel.
chef  linux  server  sysadmin 
march 2011 by mcroydon
mnot’s blog: Digging Deeper with htracr
"There’s a lot of current activity on the binding between HTTP and TCP; from pipelining to SPDY, the frontier of Web performance lives between these layers."
analysis  capture  cool  development  howto  http  innovation  node  networking  network  net  monitoring  javascript  monitor  node.js  performance  nodejs  protocol  svg  sysadmin  tool  tcp  tracking  visualization  webdev  htracr  pcap  raphael  sniffer 
november 2010 by mcroydon
OpenTSDB - A Distributed, Scalable Monitoring System
OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase. OpenTSDB was written to address a common need: store, index and serve metrics collected from computer systems (network gear, operating systems, applications) at a large scale, and make this data easily accessible and graphable.
analysis  architecture  bigdata  cloud  data  database  db  java  lgpl  hbase  hadoop  development  graph  distributed  monitoring  nosql  opensource  operations  scalability  scale  time  sysadmin  software  storage  series  opentsdb  rrd  stumbleupon  time-series  timeseries 
november 2010 by mcroydon
About Warrick
Content recovery via Internet Archive and search engine caches.
cache  archive  free  linux  perl  recovery  script  sysadmin  tool  web 
october 2010 by mcroydon
Stashboard: The open source status dashboard
"Stashboard is designed to provide a generic status dashboard for any hosted service or API. The code can be downloaded, customized, and run on any Google App Engine account."
api  app  appengine  cloud  dashboard  cloudcomputing  googleappengine  google  gae  free  django  design  monitoring  open-source  opensource  python  saas  rest  twilio  tracking  tools  status  sysadmin  software  service  uptime  web  webdev 
july 2010 by mcroydon
Cassandra Internals – Reading
The companion to his writing-oriented Cassandra tour.
architecture  cassandra  database  data  distributed  internals  java  nosql  sysadmin 
march 2010 by mcroydon
Pollution in 1/8 | RIPE Labs
An interesting look at some potential affects of bringing previously unallocated IP ranges online.
internet  network  sysadmin 
february 2010 by mcroydon
The Data-Crunching Powerhouse Behind ‘Avatar’ « Data Center Knowledge
"The system now occupies spot 193 through 197 in the Top 500 list of the most powerful supercomputers."
data  graphics  sysadmin  computing  movie  movies  3d  cloud  film  it  rendering  datacenter  supercomputer  cinema  ops  hpc  avatar  datacenters  weta 
december 2009 by mcroydon
round-robin django setup with nginx - small py
Interesting tactic where multiple backends can be tried before returning an error if you set the timeout low enough.
python  web  django  server  scalability  performance  sysadmin  scaling  coding  http  deployment  infrastructure  traffic  webserver  nginx  config  load_balancing  roundrobin 
december 2009 by mcroydon
Lessons from Rackspace's downtime
What's your plan for when the power goes out? How quickly do your services come back online?
sysadmin  work  computers  hosting  power  it  datacenter  rackspace 
november 2009 by mcroydon
Traffic Server is finally here | Ogre.com
Yahoo! open sourced tech originally acquired from Inktomi. It's a caching proxy with some pretty advanced features.
web  software  opensource  server  scalability  internet  performance  sysadmin  todo  http  apache  cache  yahoo  nginx  proxy  trafficserver  squid 
october 2009 by mcroydon
High-end Varnish-tuning « Kristian's web log
Tuning advice for when the whack-a-mole approach stops working.
reference  blog  server  network  sysadmin  performance  article  http  tips  cache  proxy  tuning  revsys  varnish 
october 2009 by mcroydon
Some perspective to this DIY storage server mentioned at Storagemojo - c0t0d0s0.org
This addresses several of the shortcomings of the Backblaze high density disk storage system. This analysis is in line with some of my grumps but at the same time the Backblaze system is a pretty impressive thing despite its shortcomings.
storage  sysadmin 
september 2009 by mcroydon
Petabytes on a budget: How to build cheap cloud storage | Backblaze Blog
A pretty fantastic DIY solution to massive storage. I kinda wonder what the failure rate is on a configuration such as this.
design  linux  hardware  database  opensource  technology  amazon  server  diy  computer  storage  sysadmin  cool  s3  aws  debian  open  cloud  infrastructure  custom  cheap  backblaze  hard  drive  harddrives 
september 2009 by mcroydon
Chrooted SSH HowTo - Page 2 | HowtoForge - Linux Howtos and Tutorials
This includes a script similar to the process I went through to bootstrap a chroot.
projects  software  linux  python  howto  security  sysadmin  network  administration  ssh  chroot 
april 2009 by mcroydon
Scaling Lucene and Solr | Lucid Imagination
Wow, I thought I had seen all of the goodies on the lucid imagination site. Nice find, Joseph.
programming  development  linux  java  search  sysadmin  scalability  scaling  article  performance  optimization  lucene  solr  oss  ir  information-retrieval  tomcat  tuning 
march 2009 by mcroydon
Anatomy of ext4
I really love the ext family of filesystems. While rarely groundbreaking they're proven, mainstream, and honestly, I'm okay with a mundane workhorse filesystem.
linux  technology  sysadmin  opensource  filesystem  todo  os  article  to-read  system  ibm  filesystems  file  ext4  developerworks  internals 
february 2009 by mcroydon
peafowl -
Lightweight queues in Python -- essentially a Python port of starling. Looks hawt. Via Travis Cline.
python  code  server  sysadmin  cluster  memcached  messaging  googlecode  queue  rpc  peafowl  memcache  license:mit  mq  starling 
january 2009 by mcroydon
Condor Project Homepage
"Condor is a specialized workload management system for compute-intensive jobs. Like other full-featured batch systems, Condor provides a job queueing mechanism, scheduling policy, priority scheme, resource monitoring, and resource management. Users submit their serial or parallel jobs to Condor, Condor places them into a queue, chooses when and where to run the jobs based upon a policy, carefully monitors their progress, and ultimately informs the user upon completion."
programming  linux  software  development  research  tools  network  sysadmin  work  scalability  unix  windows  architecture  cluster  computing  framework  distributed  batch  hpc  htc  clusters  cloud  parallel  concurrency  clustering  grid  performance  opensource  condor  gridcomputing 
november 2008 by mcroydon
Schneier on Security: The Skein Hash Function
The paper on Skein was pretty readable. Either that or I know more about cryptography than I thought I did. I love that Skein performs insanely fast on 64 bit processors, acceptably fast on 32 bit processors and runs at all on 8-bit AVR chips.
programming  software  development  news  code  security  sysadmin  tech  algorithms  algorithm  cool  source  cryptography  crypto  article  hash  encryption  tips  nist  schneier  skein  function  sha 
november 2008 by mcroydon
Tuning Your PostgreSQL Server - PostgreSQL Wiki
Malcolm and Jacob have been prodding at Postgres again and have come up with choice links.
database  server  sysadmin  postgresql  performance  postgres  tuning  administration  dba 
august 2008 by mcroydon
Eucalyptus
Roll your own in-house EC2. Nice! It's good to see ROCKS in use still.
amazon  aws  cloud  cluster  clustering  clusters  computing  ec2  firewall  grid  hosting  linux  management  open  open-source  programming  scalability  software  sysadmin  to-read  trend  xen  virtualization 
june 2008 by mcroydon
The Economics of Online Backup - Inside Lightroom
Never underestimate the bandwidth of a station wagon full of backup tapes.
amazon  analysis  bandwidth  blogs  backup  business  internet  s3  storage  sysadmin 
february 2008 by mcroydon
Election Night at NYTimes.com - Open - Code - New York Times Blog
We found the AP feeds to be pretty slow compared to grabbing information directly from the source, but when you're tracking the entire country you don't have that luxury. I'd love to comment on this further when I get a chance.
ap  data  elections  ftp  media  nyt  open  politics  ruby  statistics  sysadmin  voting 
february 2008 by mcroydon
pyinotify - filesystem monitoring in Python with inotify
Very nice. If only there were a cross-platform wrapper that handled various OSes filesystem notification systems.
dev  event  events  filesystem  file  interface  library  linux  module  monitor  programming  python  security  shell  software  sysadmin  system  tagging  utility  unix 
january 2008 by mcroydon
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