hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tiger Uppercut" <get2thachop...@gmail.com>
Subject hadoop ec2 tutorial, cluster has no datanodes
Date Wed, 17 Oct 2007 19:54:27 GMT

I'm using the Hadoop 0.14.1 AMI as my master node [ami-64f6130d], and
I've followed up to "test your cluster" bit of the tutorial listed


However, when I try to run the following command,

    $ bin/hadoop jar hadoop-*-examples.jar pi 10 10000000

I get an error "Failed to create file /user/root/test-mini-mr/in/part0
on client because this cluster has no datanodes."


org.apache.hadoop.ipc.RemoteException: java.io.IOException: Failed to
create file /user/root/test-mini-mr/in/part0 on client
because this cluster has no datanodes.
        at org.apache.hadoop.dfs.FSNamesystem.startFile(FSNamesystem.java:739)

According to the following thread [
], I need to check my ip-addresses.

My dynDNS settings are as follows.

hostname: something.webhop.org
wildcard: true
service type: host with IP address
ip address: xx.yy.zz.aa
webhop: http://ec2-xx-yy-zz-aa.z-1.compute-1.amazonaws.com/

For reference, my hadoop-site.xml file is:






Any tips would be very welcome...!


[I've also posted this to Amazon's EC2 forum.]

View raw message