6. Configure the Selected Node

The script configure.sh configures a node to be part of a MapR cluster, or modifies services running on an existing node in the cluster. The script creates (or updates) configuration files related to the cluster and the services running on the node.

Before you run configure.sh, make sure you have a list of the hostname of the ZooKeeper nodes. You can optionally specify the ports for the CLDB and ZooKeeper nodes as well. The default ports are:

Service Default Port #
CLDB 7222
ZooKeeper 5181

The script configure.sh takes an optional cluster name and log file, the CLDB hostname, and comma-separated list of ZooKeeper host names or IP addresses (and optionally ports), using the following syntax:

/opt/mapr/server/configure.sh -C <host>[:<port>] -Z <host>[:<port>][,<host>[:<port>]...] [-L <logfile>][-N <cluster name>]
Note: Each time you specify the -Z <host>[:<port>] option, you must use the same order for the ZooKeeper node list. If you change the order for any node, the ZooKeeper leader election process will fail.

Example

/opt/mapr/server/configure.sh -C r1n1.sj.us:7222 -Z r1n1.sj.us:5181,r2n1.sj.us:5181,r3n1.sj.us:5181,r4n1.sj.us:5181,r5n1.sj.us:5181 -N MyCluster