[GitHub] [iceberg] openinx commented on pull request #2807: [2806]Dell EMC ECS catalog implementation

[GitBox <gi...@apache.org>]

openinx commented on pull request #2807:
URL: https://github.com/apache/iceberg/pull/2807#issuecomment-911334551


   Before we start to split the PR into smaller PRs, I think we iceberg community need to reach the consistence about the public/private vendor integration contribution.  The iceberg-aws module is a great example, it provides independent mock unit tests for the small feature,  the most important point is :  Adobe has provided the s3 integration test utility : [com.adobe.testing:s3mock-junit4](https://github.com/adobe/S3Mock),   it could just launch a local mini s3 cluster for accessing the HTTP API (the S3Mock pretend as a real S3 http server by implementing the S3 API under a local fs directory).  The S3Mock simulator have fully covered test cases to guarantee the local S3 has the same semantics as the [aws s3](https://aws.amazon.com/cn/s3/). 
   
   When I implement [the aliyun OSS integration](https://github.com/apache/iceberg/pull/2230/files),  I thought I should provide a  similar object storage simulator to align between the local tests and public aliyun oss,  so I provided a [OSSMockApplication](https://github.com/apache/iceberg/pull/2230/files#diff-cae7d6bade136ee5e97da24f979e6352929af6df9d244a3afc3a94770396c1bc) and [TestLocalOSS](https://github.com/apache/iceberg/pull/2230/files#diff-f8329e3691562000032033a485ecc5e30bf6d6a3b7e25e5f8cdd4f4e387b604aR53) to align the semantics.  For my personal view,  I would prefer to provide a fully tested simulator for private vendor integration so that we could build unit tests on top of it to verify the correctness.
   
   As we will introduce more and more public/private vendor integration in future,  I think we should consider agreeing on the details of introducing the vendor as soon as possible, and provide a more complete guide for community contributors to follow and implement.
   
   FYI @rdblue & @danielcweeks . 


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