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From Steve Lewis <lordjoe2...@gmail.com>
Subject Re: HDFS Errors
Date Tue, 22 Jun 2010 20:58:10 GMT
training@hadoop1:~$ hadoop dfsadmin -safemode get
Safe mode is OFF

training@hadoop1:~$ hadoop dfsadmin -refreshNodes
training@hadoop1:~$ hadoop fs -copyFromLocal small_yeast
/user/training/small_yeast
^CcopyFromLocal: Filesystem closed

with 1 file copied then the same error


On Tue, Jun 22, 2010 at 1:03 PM, Allen Wittenauer
<awittenauer@linkedin.com>wrote:

>
> On Jun 22, 2010, at 12:55 PM, Steve Lewis wrote:
> > /user/training/small_yeast/yeast_chrXIV00000006.sam.gz could only be
> replicated to 0 nodes, instead of 1
>
> ... almost always means the namenode doesn't think it has any viable
> datanodes (anymore).
>
> > Anyone seen this and know how to fix it
> >  I am on a 4 node virtual cloudera cluster
>
> Check the namenode UI and see if it is in safemode, how many live datanodes
> you have, etc.
>
>
>


-- 
Steven M. Lewis PhD
Institute for Systems Biology
Seattle WA

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