Nicolas,
Thanks for your help. had a look at HDFS-3703. So I need to turn on dfs.namenode.check.stale.datanode and set a shorter time for dfs.namenode.stale.datanode.interval Thanks, Francis.Hu 发件人: Nicolas Liochon [mailto:nkey...@gmail.com] 发送时间: Thursday, July 04, 2013 16:28 收件人: user@hadoop.apache.org 主题: Re: interval from Live to Dead about DataNode Hi, It's 10 minutes and 30s. See the stale mode described in HDFS-3703 if you need something shorter. Cheers, Nicolas On Thu, Jul 4, 2013 at 10:05 AM, Francis.Hu <francis...@reachjunction.com> wrote: Hi,All Does anyone know when the status of datanode switch from live to dead at the internal of namenode ? the scenario: When i stopped a datanode with command, the status of that datanode in the web UI of namenode displays 'live' and 'In Service' for almost 5 minutes. I know the default value of datanode dfs.hreadbeat.interval is set as 3 seconds and dfs.namenode.decommission.interval is set 30 seconds. Thanks, Francis.Hu
