I apologize for this :( I thought the earlier mail didn't go through -----Original Message----- From: Harsh J [mailto:ha...@cloudera.com] Sent: Tuesday, September 11, 2012 2:31 PM To: user@hadoop.apache.org Subject: Re: what happens when a datanode rejoins?
Hi Mehul, Please do not send multiple mails with the same questions. We've already answered this at your other post, follow thread at: http://mail-archives.apache.org/mod_mbox/hadoop-user/201209.mbox/%3ce884ec9cd547324b8976a5d37317ac566d11c7f...@apj1xchevspin30.symc.symantec.com%3e On Tue, Sep 11, 2012 at 2:09 PM, mehul choube <mcho...@gmail.com> wrote: > Hi, > > > What happens when an existing (not new) datanode rejoins a cluster for > following scenarios: > > > a) Some of the blocks it was managing are deleted/modified? > > b) The size of the blocks are now modified say from 64MB to 128MB? > > c) What if the block replication factor was one (yea not in most deployments > but say in case) so does the namenode recreate a file once the datanode > rejoins? > > > > > Thanks, > > Mehul > > -- Harsh J
