February 2012
1 post
“To add this middleware to your configuration, add the swift3 middleware in front...”
– Configuring Object Storage with the S3 API - OpenStack Object Storage Admin Manual - trunk
January 2012
1 post
Don't scar on the first cut - Signal vs. Noise (by... →
this is old but I just found it and its really good
December 2011
6 posts
Luwak EOL →
Riak just took itself off the table as an “in house S3” solution.
Red Hat finally added a "just the packages please"... →
Under the name “Self-support Subscription”.
I’ve asked every redhat sales rep I ever talked to for this for something like 5 years now. Now you can get official ISOs, do basic management via RHN, and get security updates *that day* without paying for email/phone support you never use.
“From my experience, and I have done thousands upgrades and downgrades in my...”
– Which Linux distribution for a MySQL database server? A specific point of view. - MySQL Performance Blog
“One of my goals for 2012 is to have our market opportunities tightly align with...”
– LEAKED MEMO: AOL Has Hired The General Obama Fired
Sooooooooooo glad I quit.
Akamai Reportedly Buying Rival Cotendo For Up To... →
Dammit, I specifically chose Cotendo because they fulfilled my “not akamai” requirement.
AOL: 60,000 Servers, Retooling for the Future »... →
AOL has 60K servers and five datacenters. Huffpo had less than 50 servers and 6 racks.
November 2011
2 posts
October 2011
6 posts
Creating An Amazon IAM User Who Can Access A... →
You would think this would be a really common and well documented use case, but it took a couple hours of pouring through confusing docs and blog posts before I found this gem. Straight to the point, problem solved in 5 minutes.
“David M. Wong - Wells Fargo Securities, LLC, Research Division:
My final thing,...”
– Intel’s CEO Discusses Q3 2011 Results - Earnings Call Transcript - Seeking Alpha
Looks like new Ivy Bridge based servers will be more of a Q2 purchase next year than Q1.
Puppet 0.25 to 2.6 upgrade gotcha →
”*” now really means “*.pp”, so if your files were named “foo” instead of “foo.pp” your import statements fail with an error message that makes no sense.
thanks to Steve Snodgrass for the explanation at the bottom of that ticket.
“If you love re-compiling Linux kernels, than this is the role for you!”
– DevOps Engineer
What kind of idiot loves re-compiling anything let alone the kernel?
“One parent process coordinates work among many children? Where have I heard that...”
– Straight Talk on Event Loops
This is an awesome post. Ted can be a little too trollish sometimes but he can also clearly bring it.
September 2011
2 posts
Amazon Web Services Blog: Amazon Linux AMI -... →
Wow amazon really tackled the main problems I had with their AMI last time I tried it (puppet & epel). Guess its worth another shot.
Why I Don’t Use Third-Party Binary Packages - The... →
I picked a nit with Bob Plankers(tm).
July 2011
8 posts
“today we are releasing the latest addition to the Page Speed family: Page Speed...”
– Page Speed Service: Web performance, delivered. - The official Google Code blog
holy crap, google just launched a CDN out of nowhere
“If you’re lazy, you go to Google; if you want cash, you go to Facebook; if you...”
– Raiders of the Last Nerd | Betabeat — News, gossip and intel from Silicon Alley 2.0.
“We use MongoDB for nearly all of our data storage needs. We’re starting to...”
– harry_heymann comments on IAmThe servier engineering lead at foursquare. Ask Me Anything.
I thought this was the most interesting part of the thread. IIRC the main reason 4square chose MongoDB was geospatial indexing.
“I’ve been watching RSS feeds from job posting aggregators for several...”
– Measuring open-source success by jobs at Xaprb
Puppet is "broken" in RHEL 6.1 on EC2
puppet-server requires libselinux-ruby, which is available in redhat’s -optional repo, but the official RHEL EC2 AMI’s don’t seem to have access to that repo. They only have -releases and -updates. If you try to add the channel via the usual rhn commands you have to provide rhn account credentials, which if you’re just firing up a new ec2 instance you don’t have.
June 2011
4 posts
[CentOS-devel] Is C6 QA Sign-off going to occur... →
CentOS 6 misses another deadline.
“Lawyers. Shoot the lawyers! Shoot them! They and their legal ways are a plague.”
– The Black Liszt
David Black owns
Why SSDs are worth the money - Boing Boing →
I’m totally with Artur on this one. Particularly love the screenshot at 1:31
May 2011
3 posts
“Delegating writes to someone else is the easiest way to build systems.”
– What kind of High Availability do you need? at Xaprb
“With economies of scale come failures at scale. You can’t have it both ways.”
– The bigger they are, the harder they fall at Xaprb
“This is especially important for Web 2.0 companies - the infrastructure is the...”
– Kanban for Sysadmin
April 2011
3 posts
“To be eligible for Red Hat Cloud Access, a customer must: Have a minimum of 25...”
– redhat.com | Solutions
Wow RedHat is going out of their way to make it difficult to buy their product here. I was just thinking “centos6 is taking forever, what if I just went ahead and payed for redhat?” No, you must be this tall (already spending five-figures/year with them) to...
“Conceptually I group them as
The fermions
1) CPU space
2) Memory space
3)...”
– Fermions, Bosons and the 6 Utilities « Joyeur
I was thinking about this old post today so figured I’d dig it up and link to it. You need to understand those six resources to scale web clusters. Buying lots more #1 does not solve a #5 problem.
March 2011
10 posts
“by my calculations the peak of the bubble will be June 17, 2013, around 10:17...”
– Calling a Top to the Tech Bubble: June 17, 2013 at 10:17 a.m. (EST) - Bloomberg
“A mess is not a technical debt. A mess is just a mess. Technical debt decisions...”
– A Mess is not a Technical Debt.
“If you want your own custom 404 error page to be displayed when a visitor...”
– 6 Things Every Webmaster Should Know About Google Chrome (thesitewizard.com)
Just learned this the hard way.
“One initial thing that changed, that started the real progress, was to align dev...”
– DevOps Culture Hacks | DevOps.com
“Light up a reefer in the data centre, and Halon asphyxiation will be the least...”
– Spliffs and Submarines: The Two Cultures and the State of Devops | Bitfield Consulting
“The classic big-bang release is the cornerstone of the temple of evil.”
– Software Project Management: “Releases” are Stupid and Out-moded - The Black Liszt
“explicitly recommended reference architecture: buy flash storage first, shard as...”
– Percona Server Scales Vertically with Virident tachIOn Drives - MySQL Performance Blog
“We currently use mysqldump to perform daily database backups.”
– Hybrid Incremental MySQL Backups (at Facebook)
Its amazing to thing how long they’ve lasted and how far they got using just mysqldump.
“nice” doesn’t work. It never has. Nobody ever uses it, and that has...”
– Linus
Re: [PATCH v4] sched: automated per session task groups [LWN.net]
“This, however, can cause a paradigm shift in development and deployment...”
– OmniTI ~ On the Engineering of SaaS
Lot of good points in this post. Especially the “qa is is now a continuous process” one.
February 2011
1 post
“put simply, price is in the same order of magnitude, but performance is two to...”
– http://www.mysqlperformanceblog.com/2011/02/21/death-match-ebs-versus-ssd-price-performance-and-qos/
put simply, price is in the same order of magnitude, but performance is two to three orders of magnitude different.
December 2010
1 post
1 tag
A10 AX series loadbalancer http to https redirect...
Y’know how when you use an ssl offload proxy you run into that problem where redirects generated by the real server have “http” in the location because it doesn’t know the browser-to-proxy connection is https? A10 built in a fixup. It just took me three days of doing it wrong before I found it buried on page 166 of a 900+ page pdf, behind a protected login, where google...
October 2010
1 post
1 tag
Amazon Linux incompatible with EPEL
This was a huge letdown, not just because they’re incompatible but because I had to find out the hard way, via waste of time trial and error.
AMZN Linux AMI - some package issues (perl, rrd, et al, and php-snmp)
This has some incredibly negative implications. Essentially they must not have even tried to worry about CentOS/RHEL upstream compatibility. EPEL has been standard practice for...
September 2010
4 posts
1 tag
Poor man's Apache requests per second utility
tail -n100000 access.log | awk '{ print $4 }' | sort | uniq -c | tail -n20