Question

我编写了一些使用Java API创建和删除CloudFront分配的Scala代码。

Disabling distribution of scalacoursesdemo.s3.amazonaws.com with id E3656VVNINIXI3 and ETag E3W3IUM6RJKTDY
distributionConfig={
  "enabled" : false,
  "restrictions" : {
    "geoRestriction" : {
      "restrictionType" : "none",
      "items" : [ ],
      "quantity" : 0
    }
  },
  "priceClass" : "PriceClass_All",
  "defaultRootObject" : "index.html",
  "logging" : {
    "enabled" : false,
    "bucket" : "",
    "prefix" : "",
    "includeCookies" : false
  },
  "customErrorResponses" : {
    "items" : [ ],
    "quantity" : 0
  },
  "aliases" : {
    "items" : [ ],
    "quantity" : 0
  },
  "cacheBehaviors" : {
    "items" : [ ],
    "quantity" : 0
  },
  "origins" : {
    "items" : [ {
      "id" : "S3-scalacoursesdemo",
      "customOriginConfig" : null,
      "s3OriginConfig" : {
        "originAccessIdentity" : ""
      },
      "domainName" : "scalacoursesdemo.s3.amazonaws.com"
    } ],
    "quantity" : 1
  },
  "comment" : "",
  "callerReference" : "284851146697",
  "defaultCacheBehavior" : {
    "targetOriginId" : "S3-scalacoursesdemo",
    "minTTL" : 3600,
    "viewerProtocolPolicy" : "allow-all",
    "trustedSigners" : {
      "enabled" : false,
      "items" : [ ],
      "quantity" : 0
    },
    "allowedMethods" : {
      "items" : [ "GET", "HEAD" ],
      "quantity" : 2
    },
    "smoothStreaming" : false,
    "forwardedValues" : {
      "queryString" : false,
      "cookies" : {
        "forward" : "all",
        "whitelistedNames" : null
      }
    }
  },
  "viewerCertificate" : {
    "SSLSupportMethod" : null,
    "cloudFrontDefaultCertificate" : true,
    "IAMCertificateId" : null
  }
}
Update result ETag = E14HGEUEBH4TKO
Deleting distribution of scalacoursesdemo.s3.amazonaws.com with id E3656VVNINIXI3 and ETag E14HGEUEBH4TKO.
deleteDistributionRequest={
  "id" : "E3656VVNINIXI3",
  "requestClientOptions" : {
    "clientMarker" : null
  },
  "ifMatch" : "E14HGEUEBH4TKO",
  "requestMetricCollector" : null,
  "requestCredentials" : null
}

Distribution of scalacoursesdemo.s3.amazonaws.com with id 'E3656VVNINIXI3' and ETag 'E3W3IUM6RJKTDY': 
The distribution you are trying to delete has not been disabled. 
(Service: AmazonCloudFront; Status Code: 409; Error Code: DistributionNotDisabled; Request ID: ab6e9920-d3aa-11e3-a498-7f333cd2eda0)

问题是AWS Web客户端是否将分发显示为已禁用。如果我然后尝试使用CloudBerry，它也无法删除分发。大约一个小时后，问题就消失了，CloudBerry能够删除该发行版。

如果我在由CloudBerry创建的另一个发行版上重新运行我的程序，它会禁用发布，然后生成此错误：

The precondition given in one or more of the request-header fields evaluated to false.

该错误消息最无益。我可以看到列出here。我认为这意味着ifMatch ETag不正确。不知道从哪里获得这个价值。

BTW，我想我在CloudFront docs中发现了一个错误。我认为应该从最近的If-Match或GET操作中的eTag设置PUT值，而不是The value of the ETag header you received when you disabled the distribution更为正确。

我尝试在创建发行版后等待3秒，并在删除它之前等待3秒钟禁用它，但这没有帮助。

我的程序显然有问题，但我没有看到它。建议？

Answer 1

在您的GET请求（getDistribution）的回复中找到了对此的修复程序将会有一个＆＃39; ETag＆＃39;字段，将其传递给您的removeDistribution请求＆＃39; IfMatch＆＃39;它会成功通过。我正在使用带有aws-sdk的节点，所以它看起来像这样：

aws.removeDistribution({
    Id: result.Id,
    IfMatch: result.ETag,  
}, function(err, response){console.log(err, response)});

希望这有帮助！

使用Java API删除AWS CloudFront分配

1 个答案: