Applying a Patch Using the Installer

The Installer automates much of the work involved in applying patches.

For clusters with many nodes, using the Installer can save you time and reduce the likelihood of errors when compared with other methods of applying patches. With the Installer, you can apply a patch during a:
  • New installation of HPE Ezmeral Data Fabric software
  • Maintenance update
  • Version upgrade
  • Incremental Install
Note: Applying a patch using the Installer is an offline update (not a rolling update). Also, you cannot use the Installer to apply a patch to an edge node or a client node.
To apply a patch using the Installer:
  1. Obtain the patch from Support. See Applying a Patch.
  2. Ensure that the cluster is ready for a patch update. For more information, see Verify Cluster Readiness for a Patch. Then return to this procedure.
  3. Start the Installer. For more information, see Installer.
  4. Select the Patch file option:
    If . . . Then . . .
    Data Fabric software is not yet installed on the cluster (new installation) Click the Patch file option under the MapR Version field on the Version & Services page.
    Data Fabric software is already installed (maintenance update or version upgrade) Do one of the following:
    • Click the Maintenance Update button. If you are performing a maintenance update, the Patch file option appears on the Maintenance Update page. For more information, see Performing a Maintenance Update.
    • Click the Version Upgrade button on the Installer page. If you are performing a version upgrade, the Patch file option appears under the MapR version on the Upgrade Version & Services page.
    • Click the Incremental Install button. The Patch file option appears on the Version & Services page.

    The installer prompts you to select the patch.

  5. Select the patch file, and click Choose. The installer verifies that the core version of the installed core (or the core version you are upgrading to) matches the core version of the patch file name. The installer also ensures that the patch file starts with mapr-patch, ends with rpm or deb, and does not include text such as client or nfs (to ensure that it is a core patch file). The installer does not ensure that the patch you are applying is a patch number higher than the one that is already installed (if a patch is already installed).
  6. Make other installer selections as needed. The patch is uploaded and will be installed in the background after the installer has applied any core packages.
    Note: The next time you run the Installer on the cluster, the installer shows the updated patch version on the Incremental Install page or, if you enable patch installation, on the Version Upgrade or Maintenance Update page.