Error with replication and namespaceID

2009-11-10 Thread Raymond Jennings III
On the actual datanodes I see the following exception: I am not sure what the namespaceID is or how to sync them. Thanks for any advice! / STARTUP_MSG: Starting DataNode STARTUP_MSG: host = pingo-3.poly.edu/128.238.55.33

Re: Error with replication and namespaceID

2009-11-10 Thread Edmund Kohlwey
Hi Ray, You'll probably find that even though the name node starts, it doesn't have any data nodes and is completely empty. Whenever hadoop creates a new filesystem, it assigns a large random number to it to prevent you from mixing datanodes from different filesystems on accident. When you

Re: Error with replication and namespaceID

2009-11-10 Thread Raymond Jennings III
: Re: Error with replication and namespaceID To: common-user@hadoop.apache.org Date: Tuesday, November 10, 2009, 1:46 PM Hi Ray, You'll probably find that even though the name node starts, it doesn't have any data nodes and is completely empty. Whenever hadoop creates a new filesystem