Back online in 5 mins.
by dewey @ PDTSnapcast:
OSCON!
Welcome!
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Okay, on to the next session: building a twitter clone at high scale.
by dewey @ PDT -
...and we have a winner. But it's not me.
by dewey @ PDT -
If I win, should I donate it to ISV Engineering?
by dewey @ PDT -
Ooh, there's a drawing for a netbook. I've got a ticket!
by dewey @ PDT -
They use ext3, but his choice is HRFS.
by dewey @ PDT -
(in response to question "What filesystems do you use for your testing?")
by dewey @ PDT -
"We're not developing on spinning hard disk anymore. We do all our development on SSDs."
by dewey @ PDT -
Q&A.
by dewey @ PDT -
Okay, I'm dialed out. He's not talking much to his audience; he's talking *at* his audience, or mumbling.
by dewey @ PDT -
"We've got our OS & X Server startup down from about 4 secs to about 2 secs." Huh! really? Interesting.
by dewey @ PDT -
showing a chart of booting Moblin OS, seeing how each process takes time launching.
by dewey @ PDT -
I'm thinking I'll do that one: the twitter clone. Why? What's the stack this guy uses to create an app service at high scale.
by dewey @ PDT -
Building a highly-scalable, open source, twitter clone?
by dewey @ PDT -
2009 PHP Best Practices? IronRuby 0.9? High Perf SQL with PostgreSQL? MariaDB?
by dewey @ PDT -
A/V people trying to adjust the projector, but really it's the presenter's slide that's the problem, not the projection. heh.
by dewey @ PDT -
What should I see at the 2:35PM session?
by dewey @ PDT -
Okay, turns out this talk isn't the most compelling ever. I'm not sure what his point / message is, but give him pts for effort.
by dewey @ PDT -
<sigh>
by dewey @ PDT -
Example: "ter algorithms/mechanisms (batching, ...less work). Use less CPU!"
by dewey @ PDT -
Example: "rly DNS lookups to a caching DNS ...er"
by dewey @ PDT -
Example: "ing latency: sreadahead".
by dewey @ PDT -
"Tricks / Methods" slide: looks like left half is missing, can only see partial words.
by dewey @ PDT -
Hey folks, I'm back. Attending a session "Why it is hard to be fast". http://is.gd/1Jkf2
by dewey @ PDT -
Back at 1:30PM Pacific, see you then.
by dewey @ PDT -
If there are any sessions you'd like me to cover, comment right here on the snapcast. The popular vote wins; I'll cover what you like.
by dewey @ PDT -
I will be online for the OSCON afternoon sessions, from 1:30PM to 6:00PM.
by dewey @ PDT -
Hi folks, back for a quick word here:
by dewey @ PDT -
Good night, folks; see you tomorrow.
by dewey @ PDT -
Let me know which sessions you want me to attend tomorrow! I'll do it. If you don't pick, I will. I doubt that's good for anybody.
by dewey @ PDT -
...then taking a break from 10AM to 11AM, back at 11AM.
by dewey @ PDT -
I'll snapcast the morning keynote at 9:00AM Pacific Time...
by dewey @ PDT -
I'm going to walk away from the snapcast but I'm back tomorrow morning.
by dewey @ PDT -
Looks like that's a wrap for the session.
by dewey @ PDT -
Q&A time.
by dewey @ PDT -
They're showing a data dump of what the tool does. I can't follow this part at all. I'm sure it means something to them, though. :-)
by dewey @ PDT -
Horiz. bars are indiv. web page elements; time goes left-to-right, so width of a bar shows how long that page element takes to render.
by dewey @ PDT -
Just uploaded a screenshot of the tool. What you're seeing is it graphing the perf of one web page being loaded.
by dewey @ PDT -
They built a rule that looks for "myspacecdn.com" or "myspace.com", to see how MySpace-friendly a page is, just for fun.
by dewey @ PDT -
Funky: you can define your own validation rules to apply to any page that MSFast analyzes.
by dewey @ PDT -
(image 32K) by dewey @ PDT
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Looking at code in MSFT Visual Studio: the source code for the MSFast perf analyzer.
by dewey @ PDT -
They also have a validation system: can analyze a page and show parts of the page that are behaving badly (deprecated domains, etc.)
by dewey @ PDT -
Really nice way of showing perf problems for each element of a complex page.
by dewey @ PDT -
Wow, pretty cool: the tool shows before & after (visually) for each segment of the page that loads.
by dewey @ PDT -
x-axis is time elapsed as the page loads. graph shows CPU load over time, browser memory usage, and load time for each page component.
by dewey @ PDT -
plug-in for browser loads a page, then shows a graph:
by dewey @ PDT -
(that's user traffic)
by dewey @ PDT -
A: 44% is IE 7, Firefox is 16%, missed the IE8 number.
by dewey @ PDT -
Q: what percent is IE browser?
by dewey @ PDT -
The answer: they see lots of IE coming into myspace.com.
by dewey @ PDT -
MSFast: browser toolbar for IE. Many people ask "Why did you pick IE? Why talk about it at an open source conference?!" Good point!
by dewey @ PDT -
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Hey gang: do any other tools doo all this?
by dewey @ PDT -
measures render time of page elements, validates page against sets of best practices.
by dewey @ PDT -
What's MSFast: measures CPU and memory state of the browser...captures screenshots of rendered sections.
by dewey @ PDT -
(btw, the guy didn't have a DVI-to-VGA dongle for his Mac laptop. Sun to the rescue! yay!)
by dewey @ PDT -
Speaker says "MySpace is kinda new to open source."
by dewey @ PDT -
Back! MySpace's new open source perf analysis plug-in: MSFast.
by dewey @ PDT -
Back in about 15 mins, folks.
by dewey @ PDT -
Gonna go check out the session on MSFast (an open source web performance tracker)...gonna check it out with Glen Kriekenbeck, a Sun alum.
by dewey @ PDT -
Hadoop talk is over...waiting for the next talk.
by dewey @ PDT -
They have VMware images you can download to run a cluster on your laptop
by dewey @ PDT -
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Univ. of Nebraska is such a recipient: 400TB Hadoop cluster to deal with the data for physicists.
by dewey @ PDT -
"only" small fraction is interesting: 300MB/sec. Delivered by CERN to remote data centers around the world.
by dewey @ PDT -
Raw sensor data streaming off of Compact Muon Solenoid sensors in Switzerland, 320 terabits / sec. That's a lotta data in a big hurry.
by dewey @ PDT -
As long as the web page continues to say "NO", we're all okay.
by dewey @ PDT -
You can go to this URL to find an up-to-the-minute answer (no kidding!) http://bit.ly/8YfXin
by dewey @ PDT -
Question: "Does the energy from the LHC produce black holes?" There's a web page that'll give you the answer.
by dewey @ PDT -
Use Case 3: "Stalking the Wily Higgs Boson", the Large Hadron Collider, CERN (Switzerland)
by dewey @ PDT -
(still talking about the TVA case study: "Capture, analyze, report")
by dewey @ PDT -
40TB of data by 2010, growing to 100TB/year. 15TB already in archive.
by dewey @ PDT -
Another use case: Tennessee Valley Authority (monitoring the electrical grid).
by dewey @ PDT -
Rackspace was growing at 150GB per day; reached limits of MySQL on single machine.
by dewey @ PDT -
(Apache solr is based on the Lucene search engine, which is written in Java) http://bit.ly/4U3e1g
by dewey @ PDT -
Uses Solr as a search interface.
by dewey @ PDT -
case study slide: Rackspace log processing with Hadoop.
by dewey @ PDT -
Hive: provides SQL interface to the Hadoop cluster...turns queries into distributed Hadoop queries.
by dewey @ PDT -
files broken into blocks & distributed across the system. Replication guards against data failure.
by dewey @ PDT -
talking about HDFS, the Hadoop Distributed File System.
by dewey @ PDT -
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huh; interesting group of names.
by dewey @ PDT -
Slide showing components in Hadoop: Pig, Chukwa, Hive, HBase, MapReduce, HDFS, ZooKeeper, Common, Avro.
by dewey @ PDT -
open source..."Made famous by Yahoo!, Facebook, and other Web giants." according to the speaker.
by dewey @ PDT -
What is Hadoop? MapReduce for computation and HDFS for storage.
by dewey @ PDT -
Hey folks, I'm back. It's the Hadoop session at OSCON.
by dewey @ PDT -
Back in 15 minutes, gang
by dewey @ PDT -
(image 55K) by dewey @ PDT
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Getting ready to go mobile on the exhibit floor; back in a few minutes, folks.
by dewey @ PDT -
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I'll be updating from my mobile phone here and there so stay with me, and talk back to me!
by dewey @ PDT -
Ah: looks like an afternoon break, 3:20PM PT to 4:30PM PT. I'm going to wander the booths for a bit, see what I can see.
by dewey @ PDT -
Concluding this session...going to go to the Hadoop session in a few minutes.
by dewey @ PDT -
Talking about the dashboard more. Comparing it to Sun's "Amber Road" storage server product analytics dashboard.
by dewey @ PDT -
Comment from audience: "I roll my own web stack, so I'm suspicious of somebody saying their thing will solve all my problems."
by dewey @ PDT -
(image 30K) by dewey @ PDT
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...and it's a business question, no technical barriers that we've seen. Want a specific ISV? Talk to George Drapeau (your host).
by dewey @ PDT -
A: yes, we're starting to see them.
by dewey @ PDT -
Q: any ISVs certified their apps with your stack?
by dewey @ PDT -
A (cont'd): to buy WebStack, turns out you buy the Glassfish portfolio and you get WebStack as part of it.
by dewey @ PDT -
A: It's part of the larger portfolio, the Glassfish Portfolio. WebStack is a subset of that portfolio.
by dewey @ PDT -
Q: Glassfish app container is not part of this stack?
by dewey @ PDT -
A: we don't make huge mods to Tomcat; it's almost as-is.
by dewey @ PDT -
Another question: "What's the relnship b/w your web server and Apache Tomcat?"
by dewey @ PDT -
Anybody have a pointer to documentation on this? I'll share it with the questioner if so.
by dewey @ PDT -
Question from the audience: "w/typical deployment, what's best practice for load-balancing for high availability?"
by dewey @ PDT -
Oh man, they're doing a giveaway for an iPod Shuffle. Too bad I'm not eligible.
by dewey @ PDT -
About to do a demo (ooh, demos).
by dewey @ PDT -
If you have questions you want me to ask the presenters, just let me know.
by dewey @ PDT -
MLB.com: 90M hits/day. That's a lotta baseball, people.
by dewey @ PDT -
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world record performance on SPECweb benchmarks.
by dewey @ PDT -
speaker is talking about Sun Web Server 7.0 overview.
by dewey @ PDT -
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Factoid: Sun Web Server was originally Netscape Enterprise Server, but now open sourced (BSD license).
by dewey @ PDT -
1 billion minutes of streaming media & 90M views / day: MLB.com's traffic, on Sun's web server.
by dewey @ PDT -
1 GB per minute: Web Server's access log per minute (wow).
by dewey @ PDT -
5,170 secure e-commerce (JSP) requests per second (with think time)
by dewey @ PDT -
232,000+: simultaneous HTTP connections on a Sun Fire T5520 server.
by dewey @ PDT -
276K LOC: # of lines of code in Open Web Server.
by dewey @ PDT -
Somebody guesses: "Minesweeper?"
by dewey @ PDT -
Actually, speaker is asking "What do 276K LOC mean?"
by dewey @ PDT -
Sun Web Server Trivia: 276K lines of code.
by dewey @ PDT -
Just leave a comment here on G-snap! Don't be shy, now.
by dewey @ PDT -
Remember folks: I'll be here tomorrow as well, so look at the conference schedule online and tell me which sessions I should attend.
by dewey @ PDT -
Where is this conference? City, venue
by RichG @ PDT -
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"Web Stack scales to 10,000 users w/MySQL hosting 1 Million users and 1TB of data."
by dewey @ PDT -
Waiting for the numbers.
by dewey @ PDT -
CVR (the eng. manager for Sun's WebStack product) is talking about performance of Web Stack on Intel's Nehalem processors.
by dewey @ PDT -
perf. improvements, Enterprise Manager (pretty graphs & charts, and analytics), multi-install on same system.
by dewey @ PDT -
New features in WebStack 1.5 include:
by dewey @ PDT -
Number of PHP issues found in past 18 months: 576 (yikes!).
by dewey @ PDT -
The answer: 21.
by dewey @ PDT -
Any guesses?
by dewey @ PDT -
Opened with a pop quiz: "How many security problems were found in Apache in the last 18 months?"
by dewey @ PDT -
Okay, done setting up; I'm here now. Watching CVR talk about Sun's WebStack product.
by dewey @ PDT -
Ok
by dewey @ PDT -
Have a session you want me to attend? Look here: http://bit.ly/7WzIov and tell me which sessions I should attend.
by dewey @ PDT -
I am at the O'Reilly Open Source Conference (OSCON) in San Jose, California. I'll be 'casting the sessions I attend Wed. & Thurs.
by dewey @ PDT -
Have an opinion? Share your thoughts! Next time, try creating a Snapcast for your event! It's easy!
by dewey @ PDT -
Welcome to G-SNAP!
by dewey @ PDT
Today's Snapcaster
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Snapcast Description
- Snapcasting from the McEnery Convention Center in San Jose, California: the O'Reilly Open Source Conference (OSCON) is on now, the week of July 20. For more info, go here: http://en.oreilly.com/oscon2009
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