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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-987) Adding History Service to use Store and converting Historydata to Report
Date Mon, 12 Aug 2013 18:50:50 GMT

    [ https://issues.apache.org/jira/browse/YARN-987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13737215#comment-13737215
] 

Zhijie Shen commented on YARN-987:
----------------------------------

It's not guranteed that the implementation of historystore will use hashmap.
{code}
+    HashMap<ApplicationId, ApplicationHistoryData> applicationsHistory =
+        (HashMap<ApplicationId, ApplicationHistoryData>) historyStore
+          .getAllApplications();
{code}
{code}
+    HashMap<ApplicationAttemptId, ApplicationAttemptHistoryData> applicationAttemptsHistory
=
+        (HashMap<ApplicationAttemptId, ApplicationAttemptHistoryData>) historyStore
+          .getApplicationAttempts(appId);
{code}
{code}
+    HashMap<ContainerId, ContainerHistoryData> containersHistory =
+        (HashMap<ContainerId, ContainerHistoryData>) historyStore
+          .getContainers(appAttemptId);
{code}

Another question, why does ContainerHistoryData not require ContainerReport?
                
> Adding History Service to use Store and converting Historydata to Report
> ------------------------------------------------------------------------
>
>                 Key: YARN-987
>                 URL: https://issues.apache.org/jira/browse/YARN-987
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Mayank Bansal
>            Assignee: Mayank Bansal
>         Attachments: YARN-987-1.patch
>
>


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