We see stuff like that when people try to put their laptop to sleep or some other times people don't change the default data directory (which is /tmp) and it gets somehow cleared by the OS.
Anyways, even if the NN was formated, the logs are kept in your hbase root's logs directory so unless you deleted that too it's supposed to be there. J-D On Sun, Mar 7, 2010 at 9:31 PM, William Kang <weliam.cl...@gmail.com> wrote: > Hi J-D, > Thanks for reply so fast. Well, it is too late. I have format the namenode. > I will dump it next time. I assumed this should happen before. > > > William > > On Mon, Mar 8, 2010 at 12:24 AM, Jean-Daniel Cryans > <jdcry...@apache.org>wrote: > >> And if you take a look at it's log, do you see Exceptions starting to >> pop up at some point? >> >> J-D >> >> On Sun, Mar 7, 2010 at 9:12 PM, William Kang <weliam.cl...@gmail.com> >> wrote: >> > Hi, >> > I am running HBase 0.20.3 in a Pseudo-distributed mode. It was running >> fine. >> > But after about 10 hours' inactivities, I started to have trouble to >> connect >> > the HBase master. I cannot even shut it down. The HDFS is running fine. >> Any >> > idea what caused this? Many thanks. >> > >> > >> > William >> > >> >