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https://issues.apache.org/jira/browse/HDFS-3808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13436447#comment-13436447
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Hudson commented on HDFS-3808:
------------------------------
Integrated in Hadoop-Common-trunk-Commit #2591 (See
[https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2591/])
HDFS-3808. fuse_dfs: postpone libhdfs intialization until after fork.
Contributed by Colin Patrick McCabe. (Revision 1374106)
Result = SUCCESS
atm : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1374106
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_dfs.c
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native/fuse-dfs/fuse_init.c
> fuse_dfs: postpone libhdfs intialization until after fork
> ---------------------------------------------------------
>
> Key: HDFS-3808
> URL: https://issues.apache.org/jira/browse/HDFS-3808
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: fuse-dfs
> Affects Versions: 2.2.0-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Critical
> Fix For: 2.2.0-alpha
>
> Attachments: HDFS-3808.001.patch, HDFS-3808.002.patch,
> HDFS-3808.003.patch
>
>
> {{libhdfs}} may create threads or initialize internal JNI data structures
> when it is used. So we should be careful to {{daemonize()}} before
> initializing {{libhdfs}}, not after.
> Unfortunately, fuse_dfs is doing just this -- initializing libhdfs in its
> {{main}} function, prior to calling {{fuse_main}} which does a {{daemonize}}.
> {{daemonize()}} does not preserve threads, because it is implemented by
> {{fork()}}ing and then continuing execution in the child and allowing the
> parent to {{exit()}}.
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