[jira] [Created] (YARN-11335) [Federation] Added JDOFederationStateStore for easy database query.

["fanshilun (Jira)" <ji...@apache.org>]

fanshilun created YARN-11335:
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             Summary: [Federation] Added JDOFederationStateStore for easy database query.
                 Key: YARN-11335
                 URL: https://issues.apache.org/jira/browse/YARN-11335
             Project: Hadoop YARN
          Issue Type: New Feature
          Components: federation, router
    Affects Versions: 3.4.0
            Reporter: fanshilun
            Assignee: fanshilun


[Federation] Added JDOFederationStateStore for easy database query.

We currently have a solution like SQLFederationStateStore, but I think the following places can be optimized:

1. We hope that the database can support Oracle and Postgres, but it is very difficult to provide stored procedure scripts for each database. 
It involves a lot of testing and multi-version verification. If possible, we hope to provide table building statements.

2. I read the code and found that it is basically the operation of add, delete, select and update a table. 
This can be done for us using the ORM framework, such as DataNucleus.

I plan to provide JDOFederationStateStore which can easily replace SQLFederationStateStore.



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