What are the cases that a system can go into safemode? 1) When master starts. 2) ?
What are the actions that are being carried out during safemode? 1) Wait for block reports, Process block reports, Construct the blockmap in memory. 2) ? Cagdas On Thu, May 15, 2008 at 4:20 AM, Ted Dunning <[EMAIL PROTECTED]> wrote: > > That really depends on why the name node is in safemode. > > If the reason is system startup in which only a few datanodes have reported > in, then the only problem is that some files may not be fully present. > > If the reason is some sort of system corruption, it could be a really big > mistake to force the system out of safe mode, mostly likely because you are > forcing the system out in order to cause more damage. > > > > > On 5/14/08 5:54 PM, "Cagdas Gerede" <[EMAIL PROTECTED]> wrote: > > > What is the implication of manually forcing name node to leave safemode? > > > > What properties do HDFS lose by doing that? > > > > One gain to that is that the file system will be available for writes > > immediately. > > > > > > Cagdas > > -- ------------ Best Regards, Cagdas Evren Gerede Home Page: http://cagdasgerede.info
