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
发件人: Nicolas Liochon [mailto:[EMAIL PROTECTED]]
发送时间: Thursday, July 04, 2013 16:28
收件人: [EMAIL PROTECTED]
主题: Re: interval from Live to Dead about DataNode
It's 10 minutes and 30s.
See the stale mode described in HDFS-3703 if you need something shorter.
On Thu, Jul 4, 2013 at 10:05 AM, Francis.Hu <[EMAIL PROTECTED]>
Does anyone know when the status of datanode switch from live to dead at the
internal of namenode ?
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.