Installing the Data Fabric Client on Red Hat and Oracle Linux (Non-FIPS)

This section describes how to install the Data Fabric client on Red Hat and Oracle Linux.

The following steps describe how to install a non-FIPS client for use with a secure non-FIPS cluster. If you need to install a FIPS or non-FIPS-enabled client for use with a cluster consisting of all FIPS nodes or a mix of FIPS and non-FIPS nodes, see the procedures in Installing the Data Fabric Client (FIPS).

These steps assume that you have already set up a Data Fabric repository as described in Adding the Data Fabric Repository on RHEL, CentOS, or Oracle Linux.

Remove any previous Data Fabric software. You can use rpm -qa | grep mapr to get a list of installed Data Fabric packages, then type the packages separated by spaces after the rpm -e command:
```
rpm -qa | grep mapr
rpm -e mapr-fileserver mapr-core
```

Import the package keys to enable signature verification:

wget --user=<email> --password=<token> -O /tmp/maprgpg.key -q https://package.ezmeral.hpe.com/releases/pub/maprgpg.key && rpm --import /tmp/maprgpg.key
wget --user=<email> --password=<token> -O /tmp/hpeezdf.pub -q https://package.ezmeral.hpe.com/releases/pub/hpeezdf.pub && rpm --import /tmp/hpeezdf.pub && gpg --import /tmp/hpeezdf.pub

Optionally, you may use commands to verify the signatures before installing the software. For more information, see HPE GPG Public Keys for GPG or RPM Signature Verification.

Install the client for your target architecture:
```
yum install mapr-client.x86_64
```
To use this client with a secure cluster or clusters, copy the following files from the /opt/mapr/conf directory on the cluster to the /opt/mapr/conf directory on the client.
- ssl_truststore
- ssl_truststore.p12
- ssl_truststore.pem
- maprtrustcreds.conf
- maprtrustcreds.jceks
- ssl_keystore-signed.pem
If this client will connect to multiple clusters, merge the ssl_truststore files with the /opt/mapr/server/manageSSLKeys.sh tool. You must perform the merging on the cluster. See Managing Secure Clusters for details on how to connect to a secure cluster.

Run configure.sh to configure the client. In the following examples, the -N parameter specifies the cluster name, the -c (lowercase) parameter specifies a client configuration, the -secure parameter is added if the cluster is secure, the -C (uppercase) parameter specifies the CLDB nodes, and the -HS parameter specifies the HistoryServer node. To ensure that the client can connect in the event of a CLDB node failure, all CLDB nodes are specified. For more information about the syntax, parameters, and behavior of configure.sh, see configure.sh.

Secure cluster example

/opt/mapr/server/configure.sh -N my.cluster.com -c -secure -C mynode01:7222,mynode02:7222,mynode03:7222 -HS mynode02

Non-secure cluster example

/opt/mapr/server/configure.sh -N my.cluster.com -c -C mynode01:7222,mynode02:7222,mynode03:7222 -HS mynode02

NOTE

If the cluster was configured with a cluster admin user:group that is different from the default mapr:mapr value, you must include options to specify the cluster admin user and group information when you run configure.sh to configure the client.

If the cluster-admin user ID is present on the client node, include these options:

-u
-g

If the cluster-admin user ID is not present on the client node, include these options:

-u
-g
--create-user | -a
-U
-G

The following table describes each option:

Option	Description
`-u`	The user name under which cluster services run.
`-g`	The group name under which cluster services run.
`--create-user \| -a`	Creates a local user to run cluster services, using the specified user either from the `-u` parameter, or from the environment variable `$MAPR_USER`.
`-U`	The user ID to use when creating `$MAPR_USER` with the `--create-user` or `-a` option; corresponds to the `-u` or `--uid` option of the `useradd` command in Linux.
`-G`	The group ID to use when creating `$MAPR_USER` with the `-create-user` or `-a` option; corresponds to the `-g` or `-gid` option of the `useradd` command in Linux.

At the end of the client installation, run the maprlogin password command to create a valid ticket to connect to the cluster.