Checking the Core Version
Some maintenance operations require you to know the version of the currently installed HPE Data Fabricrelease (sometimes referred to as the "core version"). You can check the core version easily from within the Control System or Installer user interface or identify the version from your installed packages.
Checking the Core Version Using the Control System
The Control System displays the core version on the
                    Overview page:

            
To connect to the Control System, see Setting Up the Control System.
Checking the Core Version Using the Installer
If you used the Installer to install the cluster, you
                can view the core version on the home page:

            
To set up the Installer, see Installer.
Checking the Core Version Using maprcli
Another way to view the currently installed core
                version is to use the 
        maprcli dashboard info
                command:cd /opt/mapr/bin
maprcli dashboard info -json
    {
        "timestamp":1586880602331,
        "timeofday":"2020-04-14 09:10:02.331 GMT-0700 AM",
        "status":"OK",
        "total":1,
        "data":[
                {
                        "version":"6.1.0.20180926230239.GA",
                        "cluster":{
                                "name":"bridget.cluster.com",
                                "secure":true,
                                "dare":false,
                                "ip":"10.10.82.24",
                                "id":"6083111376716482211",
                                "nodesUsed":1,
                                "totalNodesAllowed":-1
                        },
                        "volumes":{
                                "mounted":{
                                        "total":16,
                                        "size":1543
                                },
                                "unmounted":{
                                        "total":3,
                                        "size":1
                                }
                        },
                        "utilization":{
                                "cpu":{
                                        "util":38,
                                        "total":8,
                                        "active":3
                                },
    ...Checking the Core Version Using the Installed Packages
Another way to view the currently installed core
                version is to check the versions of the installed 
            mapr-core.x86_64
                or mapr-core-internal.x86_64 packages. Use one of the following
                commands to display the package versions:| On CentOS / Red Hat | yum list installed | 
                    
| On SLES | zypper packages --installed-only | 
                    
| On Ubuntu | apt list --installed | 
                    
For example:
yum list installed
    Installed Packages
    ...
    mapr-cldb.x86_64                      6.2.0.0.20200618050710.GA-1     @MapR_Core
    mapr-client.x86_64                    6.2.0.0.20200618050710.GA-1     @MapR_Core
    mapr-core.x86_64                      6.2.0.0.20200618050710.GA-1     @MapR_Core
    mapr-core-internal.x86_64             6.2.0.0.20200618050710.GA-1     @MapR_Core
    mapr-fileserver.x86_64                6.2.0.0.20200618050710.GA-1     @MapR_Core
    mapr-hadoop-util.x86_64               2.7.4.0.202006180214-1          @MapR_Ecos                                                                             ystem
    mapr-librdkafka.x86_64                0.11.3.202006031114-1           @MapR_Core
    mapr-zk-internal.x86_64               6.2.0.0.20200618050710.GA-1     @MapR_Core
    mapr-zookeeper.x86_64                 6.2.0.0.20200618050710.GA-1     @MapR_Core
    ...