Checking the Core Version

Some maintenance operations require you to know the version of the currently installed data-fabric release (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 SUSE 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
    ...