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Posted to common-dev@hadoop.apache.org by "Zheng Shao (JIRA)" <ji...@apache.org> on 2008/08/12 00:16:44 UTC
[jira] Issue Comment Edited: (HADOOP-3918) Improve fuse-dfs error
message when classpath not set or set incorrectly
[ https://issues.apache.org/jira/browse/HADOOP-3918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12621630#action_12621630 ]
zshao edited comment on HADOOP-3918 at 8/11/08 3:15 PM:
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The hadoop jar filename looks like hadoop-0.19.0-dev-core.jar, but we are looking for "hadoop-.+?.jar".
Shall we look for "hadoop-.*-dev-core\\.jar" instead? (two backslashes are converted to the line-break by jira).
was (Author: zshao):
The hadoop jar filename looks like hadoop-0.19.0-dev-core.jar, but we are looking for "hadoop-.+?.jar".
Shall we look for "hadoop-.*-dev-core\\.jar" instead?
> 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
>
>
> 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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