How do you create users that can be 'seen' by the mapr control system (MCS) web ui?
Currently have a mapr installation running on 6 CentOS 7 nodes and have one of the nodes (say node02) acting as an edge node for users to log into (using gnome desktop environment and xrdp). When using system-config-users on node02, can create users and groups, but when trying to assign properties to these these users/groups in the MCS (eg. setting permissions or assigning volumes) the MCS gives error that 'this user or group does not exist'.
May be misinterpreting the info, but this post from the mapr community forms as well as the official documentation seems to imply that users on any of the nodes used in the mapr cluster should be able to be configured in the MCS:
'MapR uses each node's native operating system configuration to authenticate users and groups for access to the cluster'.
However, as stated in the previous paragraph, this does not seem to be the case.
New to using mapr and any explaination of what is happening and how to correct it would be appreciated.
It seems that users and groups for the cluster must have the same name, UID, and GID on every node in the cluster. You can't put them on just one. Would need to use a command like:
clush -a 'groupadd -g 677 mygroup'
clush -a useradd -g 677 -u 6771 myuser_0001
clush -a ‘echo "myuser0001:mypassword123" | chpasswd'
mkdir $MAPR_HOME/directory/user/myuser0001
chown myuser0001 $MAPR_HOME/user/myuser0001
Corroborating information can be found in the docs:
Any user of the cluster must be established with the same Linux UID and GID on every node in the cluster.