<p>We are excited to announce that Route 53 DNS Failover now supports $ H' P. Q$ ^. k% U' H; s# b) O
Elastic Load Balancing (ELB) endpoints. Starting today, you can use : a. b1 L- F8 Z% B
Route 53’s existing health checking and DNS failover features for . D9 U. Y+ U% S4 n0 l
applications running behind an ELB, to increase redundancy and 6 i7 j1 N9 M3 r) D( `
availability for these apps.</p>8 l# u$ R% _" M8 ^
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<p>With DNS Failover, Amazon Route 53 can help detect an outage of your 8 X/ B& g, C* P8 z
website and redirect your end users to alternate locations where your 1 Y$ h m, _* B7 [- m, n. b
application is operating properly. When you enable this feature, Route 4 U0 ] X# {1 U& M* @/ i
53 uses health checks—regularly making Internet requests to your 8 g, Z: K8 X8 V1 H+ l* [
application’s endpoints from multiple locations around the world—to & H& m9 e' p5 o
determine whether each endpoint of your application is up or down. </p> 9 q4 d0 e+ A& O7 H+ K3 ?
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<p>For ELB endpoints, Route 53 evaluates the health of the load balancer " c& ^ G9 u& Z4 H/ I
itself and the health of your application running on the EC2 instances , g' Q0 m0 F( N l7 g# {
behind it. If any part of the stack goes down, Route 53 detects the 5 j1 j8 L& `8 x6 g
failure, routes traffic away from the load balancer, and directs traffic & B8 \7 t0 j0 z$ a* Y& f0 E+ X* i
to other healthy ELB endpoints. Route 53 DNS Failover also supports EC24 M1 Q+ N1 M: O4 r
endpoints as well as endpoints located in your own datacenter.</p>& c* X% n) Z @ c
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<p>Using Route 53 DNS Failover, you can run your primary application : A0 O5 I9 v2 U* V" h w1 Y
simultaneously in multiple AWS regions around the world. Route 53 ; Z2 ?& q: T X+ T4 K5 o2 }; e
automatically removes from service any region where your application is 5 g4 A0 C$ X" z7 U+ Y
unavailable. You can also take advantage of a simple backup site hosted 8 c- C" x. f! L2 T: T8 k
on Amazon Simple Storage Service (Amazon S3), with Route 53 directing ) A+ R6 B) _8 {; C3 ]
users to this backup site in the event that your application becomes 7 j7 z" A4 F0 e+ F& L2 R$ f
unavailable.</p> x% H' v" G4 ~5 P# |3 y w+ U2 ]
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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>. G- ?9 F0 d! G2 H
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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>- q7 d$ G k; J0 J1 T ~0 b
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<p>Sincerely, 3 l; O% e' V, d# t5 z3 C5 t5 Z
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$ A& w$ `4 B; O: y) ~
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% H. w! h! @" m; {: L
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
楼主
