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https://issues.apache.org/jira/browse/HADOOP-8719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16096712#comment-16096712
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Lars Francke commented on HADOOP-8719:
--------------------------------------
I know this is old and as [~aw] said the exact code has been revamped. That
said I think it'd be better to warn Mac users that an error message might occur
instead of silently overwriting a property.
This way at least I spent a day trying to figure out why my property was
ignored and others worked.
> Workaround for kerberos-related log errors upon running any hadoop command on
> OSX
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-8719
> URL: https://issues.apache.org/jira/browse/HADOOP-8719
> Project: Hadoop Common
> Issue Type: Improvement
> Components: scripts
> Affects Versions: 2.0.0-alpha
> Environment: Mac OS X 10.7, Java 1.6.0_26
> Reporter: Jianbin Wei
> Assignee: Jianbin Wei
> Priority: Trivial
> Fix For: 3.0.0-alpha1
>
> Attachments: HADOOP-8719.patch, HADOOP-8719.patch, HADOOP-8719.patch,
> HADOOP-8719.patch
>
>
> When starting Hadoop on OS X 10.7 ("Lion") using start-all.sh, Hadoop logs
> the following errors:
> 2011-07-28 11:45:31.469 java[77427:1a03] Unable to load realm info from
> SCDynamicStore
> Hadoop does seem to function properly despite this.
> The workaround takes only 10 minutes.
> There are numerous discussions about this:
> google "Unable to load realm mapping info from SCDynamicStore" returns 1770
> hits. Each one has many discussions.
> Assume each discussion take only 5 minute, a 10-minute fix can save ~150
> hours. This does not count much search of this issue and its
> solution/workaround, which can easily hit (wasted) thousands of hours!!!
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