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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2013/08/16 23:35:48 UTC
[jira] [Commented] (YARN-1075) Certain services violate
serviceStart() semantics
[ https://issues.apache.org/jira/browse/YARN-1075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13742623#comment-13742623 ]
Karthik Kambatla commented on YARN-1075:
----------------------------------------
Found only two culprits through my grep analysis - AsyncDispatcher and ResourceTrackerService.
> Certain services violate serviceStart() semantics
> -------------------------------------------------
>
> Key: YARN-1075
> URL: https://issues.apache.org/jira/browse/YARN-1075
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.1.0-beta
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
>
> IIUC, the serviceStart() implementation of services should start local threads/services first before calling super.serviceStart(). Certain services have this reversed as below - leading to possibilities where the service would be in state STARTED, but in reality might not have started yet.
> {code}
> void serviceStart() {
> super.serviceStart()
> // service sepecific logic and start operations
> }
> {code}
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