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Amazon EC2 Failure Post-Mortem 117

Posted by Soulskill from the ted-tripped-over-a-power-cord dept.
CPE1704TKS tips news that Amazon has provided a post-mortem on why EC2 failed. Quoting: "At 12:47 AM PDT on April 21st, a network change was performed as part of our normal AWS scaling activities in a single Availability Zone in the US East Region. The configuration change was to upgrade the capacity of the primary network. During the change, one of the standard steps is to shift traffic off of one of the redundant routers in the primary EBS network to allow the upgrade to happen. The traffic shift was executed incorrectly and rather than routing the traffic to the other router on the primary network, the traffic was routed onto the lower capacity redundant EBS network. For a portion of the EBS cluster in the affected Availability Zone, this meant that they did not have a functioning primary or secondary network because traffic was purposely shifted away from the primary network and the secondary network couldn't handle the traffic level it was receiving."

Comment I knew this since high school (Score 2, Interesting) 390

by Ayanami_Rei_II (#33055862) Attached to: If You Don't Want Your Car Stolen, Make It Pink

Back in high school, I mostly used mechanical pencils. But I kept breaking them: the metal tips snap off usually within a week of use. Maybe I press down too hard, or they just make shitty pencils where I live.

So I imported from Japan a few very well made--but obviously expensive--mechanical pencils. They have no problem taking my abuse. However, I ended up losing all of them over the course of the semester. I sometimes lend one to a classmate, but I didn't always get it back. I don't think they kept it on purpose, but they simply forgot to return it.

Next semester, I had to import another batch, but I got one in pink. And since then, I only lend out the pink one. I still have most of the pencils I bought then, including the pink one.

You might think that this strategy will only work ~50% of the time, but since I'm posting this on /. you should be able to figure out why I beat the odds.

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