If the cluster that you want to upgrade was installed using the MapR Installer, you
can use the MapR Installer to upgrade the MapR Ecosystem Pack (MEP).
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Verify that all ecosystem components are prepared for an upgrade.
Warning: Service failures, job failures, or the loss of customized
configuration files can occur if you do not perform the steps to prepare
ecosystem components for an upgrade.
-
Update the MapR Installer. For more information, see Updating the MapR Installer.
This step ensures that the MapR Installer has access to the latest packages.
-
Halt jobs and applications. Stop accepting new jobs and applications, and stop
YARN applications.
# yarn application -list
# yarn application -kill <ApplicationId>
You might also need specific commands to terminate custom applications.
-
Launch the MapR Installer URL ( https://<hostname/IPaddress>:9443).
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Select the Incremental Install option.
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Select the MEP Version to which you want to upgrade, and complete the
upgrade through the MapR Installer.
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Once the upgrade through the MapR Installer is complete, perform the
post-upgrade steps. See Finishing the
MapR Ecosystem Pack Upgrade.
