iam working on hadoop apache 2.7.1
and i have a cluster consists of 3 nodes
nn1,nn2,dn1
nn1 is the dfs.default.name so it is master name node
i have installed httpfs and started it of course after restarting all the services
when nn1 is active and nn2 is standby i can send this request
http://nn1:14000/webhdfs/v1/aloosh/oula.txt?op=open&user.name=root
from browser and a dialog of open or save for this file appears
but when i kill name node in nn1 and start it again
as normal and because of high availability nn1 becomes stand by and nn2 becomes active
so here httpfs should work even if nn1 becomes stand by
but sending the same request now
http://nn1:14000/webhdfs/v1/aloosh/oula.txt?op=open&user.name=root
gives me the error
{"RemoteException":{"message":"Operation category READ is not supported in state standby","exception":"RemoteException","javaClassName":"org.apache.hadoop.ipc.RemoteException"}}
shouldn't httpfs overcome nn1 stand by status and brings the file ?
is that because of wrong configuration may be,or is there any other reason
my core-site is
<property>
<name>hadoop.proxyuser.root.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.root.groups</name>
<value>*</value>
</property>
