HDFS: What happens when a harddrive fails

2008-03-26 Thread Cagdas Gerede
I was wondering 1) what happens if a data node is alive but its harddrive fails? Does it throw an exception and dies? 2) If It continues to run and continue to do blockreporting, is there a console showing datanodes with healthy hard drives and unhealthy hard drives? I know the web server of the

Re: HDFS: What happens when a harddrive fails

2008-03-26 Thread Ted Dunning
It depends on the failure. For some failure modes, the disk just becomes very slow. On 3/26/08 4:39 PM, Cagdas Gerede [EMAIL PROTECTED] wrote: I was wondering 1) what happens if a data node is alive but its harddrive fails? Does it throw an exception and dies? 2) If It continues to run