Keywal, Thanks for the information, it makes sense. I restarted the regionserver and now looks fine.
Thanks arun On Thu, Jun 7, 2012 at 3:34 PM, N Keywal <[email protected]> wrote: > Hi, > > You can have this if the region moved, i.e. was previously managed by > this region server and is now managed by another. The client keeps a > cache of the locations, so after a move it will first contact the > wrong server. Then the client will update its cache. By default there > are 10 internal retries so the next retry will be the right one, and > this error should not be seen in the customer code. > > In 0.96 the regions server will send back a RegionMovedException with > the new location if the move is not too old (less than around ~5 > minutes if I remember well). > > N. > > On Thu, Jun 7, 2012 at 9:36 PM, arun sirimalla <[email protected]> > wrote: > > Hi, > > > > My Hbase cluster seems to work fine, but i see some exepctions in one of > > the RegionServer with below message > > > > 2012-06-07 19:24:48,809 DEBUG > > org.apache.hadoop.hbase.regionserver.HRegionServer: > > NotServingRegionException; Region is not online: -ROOT-,,0 > > 2012-06-07 19:24:56,154 DEBUG > > org.apache.hadoop.hbase.regionserver.HRegionServer: > > NotServingRegionException; Region is not online: -ROOT-,,0 > > > > Though this regionserver is not Hosting the ROOT region. The -ROOT- > region > > is hosted by another Regionserver. Can someone please tell me why these > > exceptions occur. > > > > Thanks > > Arun >
