when I say
hadoop fs -copyFromLocal small_yeast /user/training/small_yeast

I get

org.apache.hadoop.ipc.RemoteException: java.io.IOException: File
/user/training/small_yeast/yeast_chrXIV00000006.sam.gz could only be
replicated to 0 nodes, instead of 1
        at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1267)
        at
org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:434)
        at sun.reflect.GeneratedMethodAccessor841.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:508)
...
Anyone seen this and know how to fix it
 I am on a 4 node virtual cloudera cluster

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

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.

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
<[EMAIL PROTECTED]>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

On Jun 22, 2010, at 1:58 PM, Steve Lewis wrote:

> training@hadoop1:~$ hadoop dfsadmin -safemode get
> Safe mode is OFF

OK, so you are out of safemode.  

>
> training@hadoop1:~$ hadoop dfsadmin -refreshNodes

This just re-reads the list of nodes.  hadoop dfsadmin -report might be more useful.

By chance, is this the first file you've tried writing to this hdfs?

No I have been using it for about two weeks and have many dozen files but it
may be close to full

On Jun 22, 2010 3:14 PM, "Allen Wittenauer" <[EMAIL PROTECTED]>
wrote:
On Jun 22, 2010, at 1:58 PM, Steve Lewis wrote:

> training@hadoop1:~$ hadoop dfsadmin -safemode ge...
OK, so you are out of safemode.
>
> training@hadoop1:~$ hadoop dfsadmin -refreshNodes
This just re-reads the list of nodes.  hadoop dfsadmin -report might be more
useful.

By chance, is this the first file you've tried writing to this hdfs?