<p>We are excited to announce that Route 53 DNS Failover now supports ?- Z+ U* _8 u$ u" ]* X
Elastic Load Balancing (ELB) endpoints. Starting today, you can use - C) ^, d: h; J7 v- I9 G! l; D3 z
Route 53’s existing health checking and DNS failover features for 7 E: Z3 U( a; ^7 P
applications running behind an ELB, to increase redundancy and ' d. T7 W) ~/ D. h2 I
availability for these apps.</p>5 q7 ~9 ]& _" j* @
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<p>With DNS Failover, Amazon Route 53 can help detect an outage of your 8 Z0 `3 `- P- ]1 F" z! r( U* A7 u
website and redirect your end users to alternate locations where your / R! [4 a( G: C( e
application is operating properly. When you enable this feature, Route " u% X, N# V6 U0 U) l
53 uses health checks—regularly making Internet requests to your $ y, h+ O) x: M% J- ]0 C x- C' A# O- W
application’s endpoints from multiple locations around the world—to 5 W' ]: W$ J- c) n! L/ t
determine whether each endpoint of your application is up or down. </p> , r, M6 Q. j; k. @; _- _
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<p>For ELB endpoints, Route 53 evaluates the health of the load balancer * ^; ~3 P/ }, N! U$ |
itself and the health of your application running on the EC2 instances 4 v3 q1 q+ v6 x8 k$ F/ R' u7 S
behind it. If any part of the stack goes down, Route 53 detects the ) x; R8 \* n/ n6 B7 m0 h) X
failure, routes traffic away from the load balancer, and directs traffic 2 R ?+ B+ _% {9 d$ q
to other healthy ELB endpoints. Route 53 DNS Failover also supports EC2) r: ?0 f+ T0 x; }. c3 u4 K3 R' U4 L+ r
endpoints as well as endpoints located in your own datacenter.</p>" T/ Z; d0 W' X
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<p>Using Route 53 DNS Failover, you can run your primary application 3 y5 {2 c7 o& P5 g" K
simultaneously in multiple AWS regions around the world. Route 53 - G/ J% _. P( c1 Z; }- r
automatically removes from service any region where your application is " O/ r. m, j$ _
unavailable. You can also take advantage of a simple backup site hosted ; Y3 J/ @+ n9 b2 m% j* P: T
on Amazon Simple Storage Service (Amazon S3), with Route 53 directing * R) \- K n$ Z# ^' q- a: B2 p
users to this backup site in the event that your application becomes " h* K) ]: t. y" L! p" l
unavailable.</p>+ M( q! }4 z( J; K! X& {5 o
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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>6 B. }9 D0 r" i c
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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> 2 ?6 J. F) L* _
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<p>Sincerely, - I: K, @: Y8 L7 F) T
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6 A; ~5 V; Q5 M h" \
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 + failover2 H0 w/ S E |; r4 M
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
