Secondary Namenode by Mistake
In hadoop land, if you find yourself facing this:
Operation category READ is not supported in state standby
You may be trying to hit the secondary namenode instead of the primary. Run the command:
hdfs getconf -namenodes
The first answer will be the primary namenode.
Written by Rob
Related protips
Have a fresh tip? Share with Coderwall community!
Post
Post a tip
Best
#Hadoop
Authors
devtripper
37.77K
kh1ramatsu
8.981K
Sponsored by #native_company# — Learn More
#native_title#
#native_desc#