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DocumentDB connection timeout after restoring snapshot to new VPC

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I had VPC("nonshima") and documentDB("nonshima-db-int") which had about 10GB of data in it. I created a new VPC("nonshima-124") with same configuration of nonshima including route-table. I wanted to move my nonshima-db-int into nonshima-124, i realized that i can not once a DocumentDB cluster is created, the VPC cannot be changed. Source: 2nd answer provided by Mihai A

So i created a manual snapshot and restored it with nonshima-124 VPC. Now my applications are not able to connect to the new cluster that was created using the snapshot

Note: security group and subnet group are prefect for newly created cluster using snapshot.

I also noticed that if i create a new cluster in nonshima-124, my applications are able to connect.

주제
네트워킹 및 콘텐츠 전송마이그레이션 및 현대화데이터베이스
태그
아마존 VPCAWS 데이터베이스 마이그레이션 서비스아마존 문서DB데이터베이스
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English
rePost-User-3467093
질문됨 6달 전341회 조회
1개 답변
0

Hello.

Where is the application hosted?
Is it hosted within the same VPC as the newly restored DocumentDB?
If the VPCs are different, you will need to connect with VPC peering and configure routing.
https://docs.aws.amazon.com/vpc/latest/peering/what-is-vpc-peering.html

If the VPCs are the same, there seems to be a problem with the settings around the security group.

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전문가
Riku_Kobayashi
답변함 6달 전
  • rePost-User-3467093
    6달 전

    the newly restored DocumentDB is in new VPC. as the newly restored DocumentDB is created using snapshot of old db, do we still new VPC peering?

    just to be clear: old DB(in old VPC) snapshot is used to create new cluster in new VPC

  • Riku_Kobayashi 전문가
    6달 전

    In which VPC is the application accessing DocumentDB hosted? If it is not hosted within a new VPC, settings such as VPC peering are required.

  • rePost-User-3467093
    6달 전

    yes the applications are within the new VPC. i also tried to create a EC2 instance in the new VPC(configured security group as well) and connect to DocumentDB, and i still get connection timeout. this concluded me that not just my application but any of the servers are unable to connect to the DocumentDB cluster created via the restored snapshot

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