Question: I am installing the MapR and I stucked at starting warden after start zookeeper on a single node.

```
# service mapr-warden start
Error: warden can not be started. See /opt/mapr/logs/warden.log for details

```

On this file there is no detail. Does anybody have a hint? Thanks =)

Answer: 
Was configure.sh (/opt/mapr/server/configure.sh -C nodeA -Z nodeA)run on the node? Did zookeeper come up successfully? 

service mapr-zookeeper status
Even when using MapR in a single node configure.sh is still required. In fact, without configure.sh warden, zookeeper, cldb and other MapR components will lack their configuration and in many cases will fail to start.

You **must** run configure.sh after installing the software packages (deb or rpm).