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Posted to common-issues@hadoop.apache.org by "Kihwal Lee (JIRA)" <ji...@apache.org> on 2016/02/05 22:52:39 UTC

[jira] [Updated] (HADOOP-12772) NetworkTopologyWithNodeGroup.getNodeGroup() can loop infinitely for invalid 'loc' values

     [ https://issues.apache.org/jira/browse/HADOOP-12772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kihwal Lee updated HADOOP-12772:
--------------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 2.7.3
           Status: Resolved  (was: Patch Available)

Thanks for reporting and fixing this, Kuhu.

> NetworkTopologyWithNodeGroup.getNodeGroup() can loop infinitely for invalid 'loc' values
> ----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-12772
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12772
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.7.2
>            Reporter: Kuhu Shukla
>            Assignee: Kuhu Shukla
>            Priority: Minor
>             Fix For: 2.7.3
>
>         Attachments: HDFS-9762.001.patch, HDFS-9762.002.patch, HDFS-9762.003.patch
>
>
> Although the DatanodInfo/DataNodeDescriptor object tends to have a non-null, non-empty value for its network location, the getNodeGroup method does not handle the case if an empty or a null value is passed and can go on recursively causing StackOverflowError. This is an improvement to check for such a state and error out if the value is null and set the location to ROOT or empty string and if the original location is empty. 



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