[jira] Updated: (HADOOP-3918) Improve fuse-dfs error message when classpath not set or set incorrectly

["Pete Wyckoff (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-3918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pete Wyckoff updated HADOOP-3918:
---------------------------------

    Status: Open  (was: Patch Available)

> Improve fuse-dfs error message when classpath not set or set incorrectly
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-3918
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3918
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/fuse-dfs
>            Reporter: Pete Wyckoff
>            Assignee: Pete Wyckoff
>            Priority: Minor
>         Attachments: patch0.txt, patch1.txt, patch1.txt, patch2.txt
>
>
> Currently libhdfs does an exit(1) when it cannot create a hadoop object. fuse does not like this and instead fuse_dfs should return -EIO and log to syslog and stderr a message. Also if it is obvious somehting is wrong, like the CLASSPATH is null or does not contain something of the form hadoop-[a-zA-Z-].jar immediately print an error and exit
> Note that it is tough to debug this issue because when fuse-dfs is not in debug mode, it is running as a fuse module and stderr is redirected, so all one gets is "software abort" when libhdfs exits. So, this will greatly improve things since fuse-dfs can print a proper error and the user can quickly see what the problem is.

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