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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-514) Delayed store operations should not result in RM unavailability for app submission
Date Mon, 15 Apr 2013 19:38:16 GMT

    [ https://issues.apache.org/jira/browse/YARN-514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13632081#comment-13632081
] 

Bikas Saha commented on YARN-514:
---------------------------------

If we are going to change the enum values then we might as well get them in order and consistent.
ACCEPTED should not be last. Also could you please check consistency with RMAppState.
{code}
 enum YarnApplicationStateProto {
   NEW = 1;
-  SUBMITTED = 2;
-  RUNNING = 3;
-  FINISHED = 4;
-  FAILED = 5;
-  KILLED = 6;
-  ACCEPTED = 7;
+  NEW_SAVING = 2;
+  SUBMITTED = 3;
+  RUNNING = 4;
+  FINISHED = 5;
+  FAILED = 6;
+  KILLED = 7;
+  ACCEPTED = 8;
 }
{code}
                
> Delayed store operations should not result in RM unavailability for app submission
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-514
>                 URL: https://issues.apache.org/jira/browse/YARN-514
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Zhijie Shen
>         Attachments: YARN-514.1.patch, YARN-514.2.patch, YARN-514.3.patch, YARN-514.4.patch
>
>
> Currently, app submission is the only store operation performed synchronously because
the app must be stored before the request returns with success. This makes the RM susceptible
to blocking all client threads on slow store operations, resulting in RM being perceived as
unavailable by clients.

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