For those interested, you can prevent this error by setting the following in 
hadoop-env.sh:

export HADOOP_OPTS="-Djava.security.krb5.realm= -Djava.security.krb5.kdc="


On Jul 28, 2011, at 11:51 AM, Bryan Keller wrote:

> FYI, I logged a bug for this:
> https://issues.apache.org/jira/browse/HADOOP-7489
> 
> On Jul 28, 2011, at 11:36 AM, Bryan Keller wrote:
> 
>> I am also seeing this error upon startup. I am guessing you are using OS X 
>> Lion? It started happening to me after I upgraded to 10.7. Hadoop seems to 
>> function properly despite this error showing up, though it is annoying.
>> 
>> 
>> On Jul 27, 2011, at 12:37 PM, Ben Cuthbert wrote:
>> 
>>> All
>>> When starting hadoop on OSX I am getting this error. is there a fix for it
>>> 
>>> java[22373:1c03] Unable to load realm info from SCDynamicStore
>> 
> 

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