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Posted to common-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2016/01/05 19:36:39 UTC

[jira] [Updated] (HADOOP-12690) Consolidate access of sun.misc.Unsafe

     [ https://issues.apache.org/jira/browse/HADOOP-12690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junping Du updated HADOOP-12690:
--------------------------------
    Attachment: HADOOP-12690.patch

Upload a patch to fix it.

> Consolidate access of sun.misc.Unsafe 
> --------------------------------------
>
>                 Key: HADOOP-12690
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12690
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: HADOOP-12690.patch
>
>
> Per discussion in Hadoop-12630 (https://issues.apache.org/jira/browse/HADOOP-12630?focusedCommentId=15082142&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15082142), we found the access of sun.misc.Unsafe could be problematic for some JVMs in other platforms. Also, hints from other comments, it is better to consolidate it as a helper/utility method to shared with several places (FastByteComparisons, NativeIO, ShortCircuitShm). 



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