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From "zhihai xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2753) potential NPE in checkRemoveLabelsFromNode of CommonNodeLabelsManager
Date Mon, 27 Oct 2014 21:49:35 GMT

     [ https://issues.apache.org/jira/browse/YARN-2753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

zhihai xu updated YARN-2753:
----------------------------
    Attachment: YARN-2753.000.patch

> potential NPE in checkRemoveLabelsFromNode of CommonNodeLabelsManager
> ---------------------------------------------------------------------
>
>                 Key: YARN-2753
>                 URL: https://issues.apache.org/jira/browse/YARN-2753
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: zhihai xu
>            Assignee: zhihai xu
>         Attachments: YARN-2753.000.patch
>
>
> potential NPE(NullPointerException) in checkRemoveLabelsFromNode of CommonNodeLabelsManager.
> It because when a Node is created, Node.labels can be null.
> In this case, nm.labels; may be null.
> So we need check originalLabels not null before use it(originalLabels.containsAll).



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