Reformatting should never be necessary if you are using released version of hadoop. Hadoop-2783 refers to a bug that got introduced into trunk (not in any released versions).
Thanks, Dhruba -----Original Message----- From: Steve Sapovits [mailto:[EMAIL PROTECTED] Sent: Friday, February 22, 2008 1:43 PM To: [email protected] Subject: Re: Namenode fails to re-start after cluster shutdown What are the situations that make reformatting necessary? Testing, we seem to hit a lot of cases where we have to reformat. We're wondering how much of a real production issue this is. -- Steve Sapovits Invite Media - http://www.invitemedia.com [EMAIL PROTECTED]
