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From "Varun Vasudev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5307) Federation Application State APIs
Date Thu, 21 Jul 2016 09:18:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15387417#comment-15387417
] 

Varun Vasudev commented on YARN-5307:
-------------------------------------

Thanks for the patch [~subru]! My thoughts -

1)
{code}
+  public FederationInsertNewApplicationResponse insertNewApplication(
+      FederationInsertNewApplicationRequest request) throws YarnException; 
{code}
Rename insertNewApplication to addApplication

2)
{code}
+  public FederationApplicationInfo getApplicationInfo(ApplicationId appId)
+      throws YarnException;
 {code}
Rename getApplicationInfo to getApplication
In addition, the function should return a GetApplicationResponse and accept GetApplicationRequest

3)
{code}
+  public Map<ApplicationId, FederationApplicationInfo> getAllApplicationsInfo()
+      throws YarnException;
{code}
Rename getAllApplicationsInfo to getApplications. Like above, it should return a GetApplicationsResponse
and accept GetApplicationsRequest

4)
{code}
+  @Override
+  public int hashCode() {
+    return getApplicationId().hashCode();
+  }
{code}
In FederationApplicationInfo the hashCode function should take into account the same params
as the equals function.

> Federation Application State APIs
> ---------------------------------
>
>                 Key: YARN-5307
>                 URL: https://issues.apache.org/jira/browse/YARN-5307
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Subru Krishnan
>         Attachments: YARN-5307-YARN-2915-v1.patch, YARN-5307-YARN-2915-v2.patch
>
>
> The Federation Application State encapsulates the mapping between an application and
it's _home_ sub-cluster, i.e. the sub-cluster to which it is submitted to by the Router. Please
refer to the design doc in parent JIRA for further details.



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