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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12294) Invalid fs.permissions.umask-mode setting should throw an error
Date Mon, 03 Aug 2015 15:26:04 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jason Lowe updated HADOOP-12294:
             Summary: Invalid fs.permissions.umask-mode setting should throw an error  (was:
propagate parsing configuration error to client)
    Target Version/s: 3.0.0
         Component/s: conf

To me this looks like a bug introduced by HADOOP-6521.  It has the confusing behavior that
if one tries unsuccessfully to set the new property but the old property has a valid setting,
rather than complaining about the bad value it silently falls back to the old property setting.
 So users can think they set the property when in reality that setting was ignored unless
they watched the logs very closely to notice the warning message.

However it's been this way for a very long time, which makes it hard to reason whether anyone
has relied on this unintuitive behavior intentionally or otherwise.  So in that sense I agree
with zhihai and Allen that we can avoid any potential breakage in 2.x and propose we fix this
for 3.x.

> Invalid fs.permissions.umask-mode setting should throw an error
> ---------------------------------------------------------------
>                 Key: HADOOP-12294
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12294
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>            Reporter: Chang Li
>            Assignee: Chang Li
>         Attachments: HADOOP-12294.2.patch, HADOOP-12294.patch
> provide better visibility of parsing configuration failure by logging full error message
and propagate error message of parsing configuration back to client

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