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https://issues.apache.org/jira/browse/HADOOP-11935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15171561#comment-15171561
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ASF GitHub Bot commented on HADOOP-11935:
-----------------------------------------
GitHub user makefu opened a pull request:
https://github.com/apache/hadoop/pull/81
Shell.java: fix absolute path `/bin/ls`
This commit uses `ls` from PATH instead of relying on `ls` being stored in
`/bin/`. The only file according to the POSIX standard which must be stored in
`/bin/` is `sh`.
This fixes issues plaguing distributions like NixOS which dynamically
stitch together a PATH.
This fix is loosly related to
https://issues.apache.org/jira/browse/HADOOP-11935 and more specifically
related to
https://mail-archives.apache.org/mod_mbox/hadoop-user/201512.mbox/%3CCAH2nEUgsSeoJTJkD4T8z=D18ECnRgQ3Qvz861gU5+NPSsNgT=a...@mail.gmail.com%3E
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/makefu/hadoop patch-1
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/hadoop/pull/81.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #81
----
commit 4e8f93d8eecce551b1eebd531c71e3c7144c9210
Author: Felix Richter <git...@syntax-fehler.de>
Date: 2016-02-29T08:08:06Z
Shell.java: fix absolute path `/bin/ls`
This commit uses `ls` from PATH instead of relying on `ls` being stored in
`/bin/`. The only file according to the POSIX standard which must be stored in
`/bin/` is `sh`.
This fixes issues plaguing distributions like NixOS which dynamically
stitch together a PATH.
This fix is loosly related to
https://issues.apache.org/jira/browse/HADOOP-11935 and more specifically
related to
https://mail-archives.apache.org/mod_mbox/hadoop-user/201512.mbox/%3CCAH2nEUgsSeoJTJkD4T8z=D18ECnRgQ3Qvz861gU5+NPSsNgT=a...@mail.gmail.com%3E
----
> Provide optional native implementation of stat syscall.
> -------------------------------------------------------
>
> Key: HADOOP-11935
> URL: https://issues.apache.org/jira/browse/HADOOP-11935
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs, native
> Reporter: Chris Nauroth
> Attachments: HADOOP-11935-NativeIO-prelim.patch
>
>
> Currently,
> {{RawLocalFileSystem.DeprecatedRawLocalFileStatus#loadPermissionInfo}} is
> implemented as forking an {{ls}} command and parsing the output. This was
> observed to be a bottleneck in YARN-3491. This issue proposes an optional
> native implementation of a {{stat}} syscall through JNI. We would maintain
> the existing code as a fallback for systems where the native code is not
> available.
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