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Posted to common-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2016/02/22 19:30:18 UTC
[jira] [Commented] (HADOOP-12690) Consolidate access of
sun.misc.Unsafe
[ https://issues.apache.org/jira/browse/HADOOP-12690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15157428#comment-15157428 ]
Junping Du commented on HADOOP-12690:
-------------------------------------
Thanks for review, [~cmccabe]. That's reasonable concern and incorporate it in v3 patch. Also, fix some whitespace issues raised by Kai.
> 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-v2.1.patch, HADOOP-12690-v2.patch, 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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