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Fairfax Underground
Welcome to Fairfax Underground, a project site designed to improve communication among residents of Fairfax County, VA. Feel free to post anything Northern Virginia residents would find interesting.
Welcome to Fairfax Underground, a project site designed to improve communication among residents of Fairfax County, VA. Feel free to post anything Northern Virginia residents would find interesting.
Facebook is down! Oh noes!
Posted by:
Facebook
()
Date: September 23, 2010 03:37PM
Good thing FU is still up or I might've actually had to WORK today!
Re: Facebook is down! Oh noes!
Posted by:
eesh
()
Date: September 23, 2010 03:46PM
What about that Twitter worm the other day? Infected a lot of people's machines.
Re: Facebook is down! Oh noes!
Posted by:
Wormy
()
Date: September 23, 2010 03:50PM
eesh Wrote:
-------------------------------------------------------
> What about that Twitter worm the other day?
> Infected a lot of people's machines.
You're a worm eesh
-------------------------------------------------------
> What about that Twitter worm the other day?
> Infected a lot of people's machines.
You're a worm eesh
Re: Facebook is down! Oh noes!
Posted by:
Lurker.
()
Date: September 23, 2010 03:54PM
Even if twitter and facebook are down you can still waste time here.
Re: Facebook is down! Oh noes!
Posted by:
Johnny Walker
()
Date: September 23, 2010 03:54PM
May God have mercy on us all.
Re: Facebook is down! Oh noes!
Posted by:
Highlander
()
Date: September 23, 2010 04:42PM
How will I know if someone gives me my cement for mafia wars??????
Edited 1 time(s). Last edit at 09/23/2010 04:43PM by Highlander.
Edited 1 time(s). Last edit at 09/23/2010 04:43PM by Highlander.
Re: Facebook is down! Oh noes!
Posted by:
WashingTone-Locian
()
Date: September 23, 2010 04:44PM
How am I going to know what my 3rd cousin twice removed thinks of tonight's season opener of Grey's Anatomy! No!!!!!!
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http://bible.cc/1_corinthians/13-11.htm
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http://bible.cc/1_corinthians/13-11.htm
Re: Facebook is down! Oh noes!
Posted by:
Withnf
()
Date: September 23, 2010 05:02PM
How am I going to Facebook stalk all the people I don't really care about any more but pretend to just so I don't have to work?!
Re: Facebook is down! Oh noes!
Posted by:
Bob in Southeast Loudoun
()
Date: September 23, 2010 05:14PM
WashingTone-Locian Wrote:
-------------------------------------------------------
> How am I going to know what my 3rd cousin twice
> removed thinks of tonight's season opener of
> Grey's Anatomy! No!!!!!!
+1
-------------------------------------------------------
> How am I going to know what my 3rd cousin twice
> removed thinks of tonight's season opener of
> Grey's Anatomy! No!!!!!!
+1
Re: Facebook is down! Oh noes!
Posted by:
woahthere
()
Date: September 23, 2010 06:22PM
Shit is going down. Around the same time yesterday it was slow/down. This was confirmed by going to Twitter search and doing "#facebook." Hundreds of tweets per second coming in about the site being down.
Re: Facebook is down! Oh noes!
Posted by:
Dane Bramage
()
Date: September 23, 2010 08:04PM
woahthere Wrote:
-------------------------------------------------------
> Shit is going down. Around the same time yesterday
> it was slow/down. This was confirmed by going to
> Twitter search and doing "#facebook." Hundreds of
> tweets per second coming in about the site being
> down.
this place ain't much more stable.
-------------------------------------------------
“We don’t have any rude, unpleasant people here. We’re different!”
-------------------------------------------------------
> Shit is going down. Around the same time yesterday
> it was slow/down. This was confirmed by going to
> Twitter search and doing "#facebook." Hundreds of
> tweets per second coming in about the site being
> down.
this place ain't much more stable.
-------------------------------------------------
“We don’t have any rude, unpleasant people here. We’re different!”
Re: Facebook is down! Oh noes!
Posted by:
ThePackLeader
()
Date: September 23, 2010 09:55PM
eesh Wrote:
-------------------------------------------------------
> What about that Twitter worm the other day?
> Infected a lot of people's machines.
Lucky for me, I mostly use Peep for that on my Hero.
==================================================================================================
"And if any women or children get their legs torn off, or faces caved in, well, it's tough shit for them." -2LT. Bert Stiles, 505th, 339th (On Berlin Bombardier Mission, 1944).
-------------------------------------------------------
> What about that Twitter worm the other day?
> Infected a lot of people's machines.
Lucky for me, I mostly use Peep for that on my Hero.
==================================================================================================
"And if any women or children get their legs torn off, or faces caved in, well, it's tough shit for them." -2LT. Bert Stiles, 505th, 339th (On Berlin Bombardier Mission, 1944).
Re: Facebook is down! Oh noes!
Posted by:
Gravis
()
Date: September 24, 2010 01:56PM
eesh Wrote:
-------------------------------------------------------
> What about that Twitter worm the other day?
> Infected a lot of people's machines.
a) not a worm
b) didnt infect machines
c) it worked like a bobby tables attack.
"the wisdom of the wise will perish, the intelligence of the intelligent will vanish."
-------------------------------------------------------
> What about that Twitter worm the other day?
> Infected a lot of people's machines.
a) not a worm
b) didnt infect machines
c) it worked like a bobby tables attack.
"the wisdom of the wise will perish, the intelligence of the intelligent will vanish."
Re: Facebook is down! Oh noes!
Posted by:
eesh
()
Date: September 24, 2010 04:58PM
Gravis Wrote:
-------------------------------------------------------
>
> a) not a worm
> b) didnt infect machines
> c) it worked like a bobby tables attack.
Please explain.
http://www.nydailynews.com/tech_guide/2010/09/22/2010-09-22_as_the_worm_turns_tuesdays_twitter_mayhem_was_caused_by_multiple_hackers.html
CNET reported that a user named @matsta, whose location is unknown, may also have created one of the first mouseover worms. (The Toronto Sun reported that the website for Matsta.org directs users to the Rick Astley 'Never Gonna Give You Up' music video. Misdirecting internet users to this video has for years been an online practical joke known as 'Rick-Rolling'.)
These mouseover worms spread quickly, and other Twitter users tweeted new variations of the hacks. Some of these new variations were more malicious and redirected users to pornographic websites. The Twitter account of former British Prime Minister Gordon Brown's wife was the victim of one of these pornographic worms.
-------------------------------------------------------
>
> a) not a worm
> b) didnt infect machines
> c) it worked like a bobby tables attack.
Please explain.
http://www.nydailynews.com/tech_guide/2010/09/22/2010-09-22_as_the_worm_turns_tuesdays_twitter_mayhem_was_caused_by_multiple_hackers.html
CNET reported that a user named @matsta, whose location is unknown, may also have created one of the first mouseover worms. (The Toronto Sun reported that the website for Matsta.org directs users to the Rick Astley 'Never Gonna Give You Up' music video. Misdirecting internet users to this video has for years been an online practical joke known as 'Rick-Rolling'.)
These mouseover worms spread quickly, and other Twitter users tweeted new variations of the hacks. Some of these new variations were more malicious and redirected users to pornographic websites. The Twitter account of former British Prime Minister Gordon Brown's wife was the victim of one of these pornographic worms.
Re: Facebook is down! Oh noes!
Posted by:
Lurker.
()
Date: September 24, 2010 05:34PM
It's called not testing software before you go live with it. Learn what testing servers are for Facebook.
Press Release From Facebook-
Early today Facebook was down or unreachable for many of you for approximately 2.5 hours. This is the worst outage we’ve had in over four years, and we wanted to first of all apologize for it. We also wanted to provide much more technical detail on what happened and share one big lesson learned.
The key flaw that caused this outage to be so severe was an unfortunate handling of an error condition. An automated system for verifying configuration values ended up causing much more damage than it fixed.
The intent of the automated system is to check for configuration values that are invalid in the cache and replace them with updated values from the persistent store. This works well for a transient problem with the cache, but it doesn’t work when the persistent store is invalid.
Today we made a change to the persistent copy of a configuration value that was interpreted as invalid. This meant that every single client saw the invalid value and attempted to fix it. Because the fix involves making a query to a cluster of databases, that cluster was quickly overwhelmed by hundreds of thousands of queries a second.
To make matters worse, every time a client got an error attempting to query one of the databases it interpreted it as an invalid value, and deleted the corresponding cache key. This meant that even after the original problem had been fixed, the stream of queries continued. As long as the databases failed to service some of the requests, they were causing even more requests to themselves. We had entered a feedback loop that didn’t allow the databases to recover.
The way to stop the feedback cycle was quite painful - we had to stop all traffic to this database cluster, which meant turning off the site. Once the databases had recovered and the root cause had been fixed, we slowly allowed more people back onto the site.
This got the site back up and running today, and for now we’ve turned off the system that attempts to correct configuration values. We’re exploring new designs for this configuration system following design patterns of other systems at Facebook that deal more gracefully with feedback loops and transient spikes.
We apologize again for the site outage, and we want you to know that we take the performance and reliability of Facebook very seriously.
Press Release From Facebook-
Early today Facebook was down or unreachable for many of you for approximately 2.5 hours. This is the worst outage we’ve had in over four years, and we wanted to first of all apologize for it. We also wanted to provide much more technical detail on what happened and share one big lesson learned.
The key flaw that caused this outage to be so severe was an unfortunate handling of an error condition. An automated system for verifying configuration values ended up causing much more damage than it fixed.
The intent of the automated system is to check for configuration values that are invalid in the cache and replace them with updated values from the persistent store. This works well for a transient problem with the cache, but it doesn’t work when the persistent store is invalid.
Today we made a change to the persistent copy of a configuration value that was interpreted as invalid. This meant that every single client saw the invalid value and attempted to fix it. Because the fix involves making a query to a cluster of databases, that cluster was quickly overwhelmed by hundreds of thousands of queries a second.
To make matters worse, every time a client got an error attempting to query one of the databases it interpreted it as an invalid value, and deleted the corresponding cache key. This meant that even after the original problem had been fixed, the stream of queries continued. As long as the databases failed to service some of the requests, they were causing even more requests to themselves. We had entered a feedback loop that didn’t allow the databases to recover.
The way to stop the feedback cycle was quite painful - we had to stop all traffic to this database cluster, which meant turning off the site. Once the databases had recovered and the root cause had been fixed, we slowly allowed more people back onto the site.
This got the site back up and running today, and for now we’ve turned off the system that attempts to correct configuration values. We’re exploring new designs for this configuration system following design patterns of other systems at Facebook that deal more gracefully with feedback loops and transient spikes.
We apologize again for the site outage, and we want you to know that we take the performance and reliability of Facebook very seriously.
Re: Facebook is down! Oh noes!
Posted by:
Gravis
()
Date: September 25, 2010 08:04PM
> This meant that even
> after the original problem had been fixed, the
> stream of queries continued. As long as the
> databases failed to service some of the requests,
> they were causing even more requests to
> themselves. We had entered a feedback loop that
> didn’t allow the databases to recover.
recursion ftw!
"the wisdom of the wise will perish, the intelligence of the intelligent will vanish."
> after the original problem had been fixed, the
> stream of queries continued. As long as the
> databases failed to service some of the requests,
> they were causing even more requests to
> themselves. We had entered a feedback loop that
> didn’t allow the databases to recover.
recursion ftw!
"the wisdom of the wise will perish, the intelligence of the intelligent will vanish."