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Posted to common-issues@hadoop.apache.org by "Vinayakumar B (JIRA)" <ji...@apache.org> on 2018/01/22 06:03:00 UTC
[jira] [Commented] (HADOOP-14451) Deadlock in NativeIO
[ https://issues.apache.org/jira/browse/HADOOP-14451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16333903#comment-16333903 ]
Vinayakumar B commented on HADOOP-14451:
----------------------------------------
Uploaded the patch, as per [~martinw]'s suggestion.
1. Split into separate code blocks in NativeIo.c
{{initNative()}}, {{initNativePosix()}} and {{initNativeWindows()}}
2. Refactored the workaround for threadsafe workaround for some platforms for {{getpwduid}} calls.
Instead of looking back from Native code for static variable
{{workaroundNonThreadSafePasswdCalls}}, passing itself directly via native method itself as parameter. Currently its only required for POSIX, using this variable for {{initNativePosix()}} only (same as before).
3. Tests added separate classes for Windows and POSIX to load static blocks separately in forked JVMs.
> Deadlock in NativeIO
> --------------------
>
> Key: HADOOP-14451
> URL: https://issues.apache.org/jira/browse/HADOOP-14451
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.8.0, 3.0.0-alpha1
> Reporter: Ajith S
> Assignee: Vinayakumar B
> Priority: Blocker
> Attachments: HADOOP-14451-01.patch, HADOOP-14451-02.patch, Nodemanager.jstack
>
>
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