Hi Francis, This is a non-worry, but you're basically hitting https://issues.apache.org/jira/browse/HDFS-3447. A temporary workaround could be to disable the UGI at the logging configuration level.
On Fri, Jan 24, 2014 at 2:46 PM, Francis.Hu <francis...@reachjunction.com> wrote: > hello, All > > > > Installed 2 NN and 3 DN in my hadoop-2.2.0 cluster,and implemented HDFS HA > with QJM. Currently, looking at the log of standby NN ,it throws below > exception at a regular interval, one hour: > > > > 2014-01-24 03:30:01,245 ERROR > org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException > as:ubuntu (auth:SIMPLE) cause:org.apache.hadoop.ipc.StandbyException: > Operation category READ is not supported in state standby > > > > Actually, the active NN is working ,and no applications access HDFS with > error. > > > > Does anyone know what the problem is ? > > > > > > > > Thanks, > > Francis.Hu -- Harsh J
