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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5406) In-memory based implementation of the FederationMembershipStateStore
Date Tue, 02 Aug 2016 22:45:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15404941#comment-15404941
] 

Subru Krishnan commented on YARN-5406:
--------------------------------------

Thanks [~ellenfkh] for the patch and [~jianhe] for the review.

I have a few minor comments:
  * I agree with [~jianhe] that the _impl_ package should be a sub-package of the _store_
package.
  * Rename {{FederationInMemoryMembershipStateStore}} --> {{MemoryFederationStateStore}}
and the corresponding test.
  * We need to validate the inputs (like null checks). Since this is common across different
store implementations, I have created YARN-5467 to track this.
  * All the tests are for positive cases, can we add a few for negative cases.
  * I think we should add a _isSubClusterActive_ method to {{SubClusterState}} and use it.
  * Can you update the Javadoc for _FilterInactiveSubClusters_ as requested by [~jianhe].

> In-memory based implementation of the FederationMembershipStateStore
> --------------------------------------------------------------------
>
>                 Key: YARN-5406
>                 URL: https://issues.apache.org/jira/browse/YARN-5406
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Ellen Hui
>         Attachments: YARN-5406-YARN-2915.v0.patch
>
>
> YARN-3662 defines the FederationMembershipStateStore API. This JIRA tracks an in-memory
based implementation which is useful for both single-box testing and for future unit tests
that depend on the state store.



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