Yes. The default is 30s.
On Thu, Jul 4, 2013 at 11:10 AM, Francis.Hu <francis...@reachjunction.com>wrote: > 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**** > > ** ** >
