91d437f0fb56cfb5b64de81b60bd6738

Installed Eucalyptus on Ubuntu Karmic 910. Capture screenshots

I discussed the subject with one of colleagues who is a Cloud Computing architect. I’m logging what my comment here

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To continue our previous talk is a huge discussion. I’d recommend you could start to get involved in http://twitter.com and follow

http://twitter.com/mashable
http://twitter.com/j3ffyang -> me
http://twitter.com/OpenIBM -> I own this too as of being admin for IBM Open Source Global community

When you hit any of above, you can see the bytes come from http://aws.amazon.com actually, which is an IaaS with no doubt. Twitter is a kind of social collaboration network -> an application running over Amazon Web Services (AWS). Twitter doesn’t own any hardware resources. Whenever Twitter needs computing capability, it goes to AWS and AWS fulfills its request… on demand. Even though Twitter sometimes out of service due to its overload.

@ IaaS, AWS not only gives power of hardware (CPU, memory, disk and network…), but also provides plugin / API to connect Twitter with Hadoop… and Simple Queue Service (SQS), and Simple Database (SDB).

You shouldn’t be surprised @ Twitter’s power to gather thousand of thousand developers around it, if keeping our eyes open. (Some reasons of the motivation of social collaboration in term of Web2.0). See these:

http://tweetwheel.com
http://ftags.com
http://tweetvalue.com/
http://www.tweetizen.com/
http://twittersnooze.com/
http://mrtweet.net/home/j3ffyang
http://tweettrail.com/search/hadoop
…
…

This list is almost endless. They’re all independent of twitter.com. The above are all SaaS, plugable into Twitter.com where provides API -> http://apiwiki.twitter.com/ and http://twitter.com/downloads – @ PaaS

This is an ecosystem.

gedit-editor > apps > totem > buffer-size | network-buffer-threshold

Change buffer-size = 10 & network-buffer-threshold = 10

Stack: SeaMonkey 1.1.15 in Ubuntu 9.04

Symptom: Socks Proxy is set, but doesn’t work

Open SeaMoney > about:config in URL bar > type

network.proxy.type

then set the value = 2

Installed cups-pdf in Ubuntu 9.04 and changed the following in /etc/cups/cups-pdf.conf

Out ${HOME}/Desktop

Restarted /etc/init.d/cups, still received

Could not open the file /home/{you}/Desktop/273_.pdf

in /var/log/cups/error_log

The solution is, in /etc/cups/cups-pdf.conf, change to

Out ${HOME}/PDF

and create PDF directory under your home directory

Disable in gconf-editor

Or in command line:

To disable >
gconftool -s --type bool /apps/update-notifier/auto_launch false

To enable >
gconftool -s --type bool /apps/update-notifier/auto_launch true

Stack

Host OS > Ubuntu 9.04

Guest OS > Windows XP

VirtualBox > 3.0.0

Hardware > ThinkPad T43, single CPU, 2G memory

Symptom: Windows XP hangs during shutdown

Resolution: Change the setting as the followings

VT – Enabled

Nested Paging – Disabled

ACPI – Enabled

IO ACPI – Disabled

PAE – Disabled