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Posted to yarn-dev@hadoop.apache.org by "Jian He (JIRA)" <ji...@apache.org> on 2014/04/30 06:03:24 UTC

[jira] [Created] (YARN-2000) Fix ordering of starting services inside the RM

Jian He created YARN-2000:
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             Summary: Fix ordering of starting services inside the RM
                 Key: YARN-2000
                 URL: https://issues.apache.org/jira/browse/YARN-2000
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Jian He
            Assignee: Jian He


The order of starting services in RM would be:
- Recovery of the app/attempts
- Start the scheduler and add scheduler app/attempts
- Start ResourceTrackerService and re-populate the containers in scheduler based on the containers info from NMs 
- ApplicationMasterService either don’t start or start but block until all the previous NMs registers.

Other than these, there are other services like ClientRMService, Webapps which we need to  think about the order too.





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