Resolving the "Permission Denied" Message On Accumulo Monitor Page

If your operating system groups are not set correctly, you'll see a "Permission Denied" message under the NameNode section of the Accumulo Monitor page.



This message can be avoided by the following steps:

sudo groupadd supergroup
sudo useradd -G supergroup accumulo

Then restart Accumulo. These steps assume that your Accumulo processes are running under the accumulo user. If not, substitute the correct userid.