<p>Dear Amazon Web Services Customer,</p>5 }9 l9 i/ q& t+ U0 c
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<p>We are excited to announce that Route 53 DNS Failover now supports . Y) y/ h, m6 f* x. |$ U
Elastic Load Balancing (ELB) endpoints. Starting today, you can use * Z- e2 W+ V2 @* Y8 e+ Z, r# c
Route 53’s existing health checking and DNS failover features for ) [) |8 k. J1 {- |
applications running behind an ELB, to increase redundancy and # {$ G: u" S' J; W2 s
availability for these apps.</p> + E% ?3 X9 Z& }- V- d9 ~- [
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<p>With DNS Failover, Amazon Route 53 can help detect an outage of your % Z, t5 _ y8 g, l
website and redirect your end users to alternate locations where your 7 a% Y# m! k! k. b5 `1 Y& \
application is operating properly. When you enable this feature, Route 7 l( S$ d* Y2 z# h
53 uses health checks—regularly making Internet requests to your 9 H; F) m/ c7 g5 ?7 v
application’s endpoints from multiple locations around the world—to ; N4 ^+ e+ Y) D: S
determine whether each endpoint of your application is up or down. </p>& R t& B" S0 [. C1 X, j+ j" s
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<p>For ELB endpoints, Route 53 evaluates the health of the load balancer% d4 ^% @9 M2 H! }: J$ v2 ?& i
itself and the health of your application running on the EC2 instances . G m* y" I+ m* Q+ W
behind it. If any part of the stack goes down, Route 53 detects the 4 V) m1 e2 L2 t
failure, routes traffic away from the load balancer, and directs traffic # q2 b4 g$ ]3 D/ x5 t
to other healthy ELB endpoints. Route 53 DNS Failover also supports EC2 / p D: X; V/ {4 O" W' t l6 `
endpoints as well as endpoints located in your own datacenter.</p> - _, l) k* J& W- k( f. ]6 w
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<p>Using Route 53 DNS Failover, you can run your primary application : f* n' ?) w" Q/ n0 L* O' m" \8 |
simultaneously in multiple AWS regions around the world. Route 53 * W( U8 ~% e3 P3 [
automatically removes from service any region where your application is % r* B$ n% l6 [8 a
unavailable. You can also take advantage of a simple backup site hosted + A% b# H0 s3 r. b0 e
on Amazon Simple Storage Service (Amazon S3), with Route 53 directing , G" P _2 ^8 H
users to this backup site in the event that your application becomes ! d/ O% P" H0 T4 R/ g# s9 z
unavailable.</p>( R, |" P" l' K' f
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<p>Health checks of Amazon ELB endpoints are free, and getting started is easy. To learn more, <a href="http://www.amazon.com/gp/r.html?R=2EMCE4T8E0NWD&C=3STR8RC5Q6H1Y&H=SUOGRM79MBBGDQ7LV8TUA2X4AYIA&T=C&U=http%3A%2F%2Faws.amazon.com%2Froute53%3Fref_%3Dpe_2170_30194830_8">visit the Route 53 product page</a> or review our walkthrough in the <a href="http://www.amazon.com/gp/r.html?R=2EMCE4T8E0NWD&C=3STR8RC5Q6H1Y&H=XGI2ROQULL3C7OX10QVMHGAWVRMA&T=C&U=http%3A%2F%2Fdocs.aws.amazon.com%2FRoute53%2Flatest%2FDeveloperGuide%2Fdns-failover.html%3Fref_%3Dpe_2170_30194830_9">Amazon Route 53 Developer Guide</a>.</p> . L5 }2 }3 s- u! k
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<p>Also, please feel free to join our <a href="http://www.amazon.com/gp/r.html?R=2EMCE4T8E0NWD&C=3STR8RC5Q6H1Y&H=J5S7YSYDGDMA3VFQM4MDM14GRX4A&T=C&U=http%3A%2F%2Fw.on24.com%2Fr.htm%3Fe%3D622099%26s%3D1%26k%3D3563EF264F8961EAF9AD217B6CE34446%26partnerref%3DLE%26ref_%3D7">webinar at 10:00 am PDT on July 9, 2013</a> to learn more about DNS Failover and the high-availability architecture options that it makes possible.</p> ' i" |$ j5 D" v' \
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<p>Sincerely,4 \; _7 u! \" Z) B- r( f$ z" j0 |
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The Amazon Web Services Team</p>
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对于使用route53的同学是个好事，简单的 geo dns + failover / v* F5 [( B" L7 ~2 f9 q1 g - o8 W/ U4 p* R! U7 o; w
发表于 2013-6-4 10:50:32
发表于 2013-6-4 11:54:54
，看不懂
发表于 2013-6-4 19:50:51
发表于 2013-6-5 00:27:56
