Patch Operation Guide for Versions from MRS 1.7.0 to MRS 2.1.0¶
If you obtain patch information from the following sources, upgrade the patch according to actual requirements.
You obtain information about the patch released by MRS from a message pushed by the message center service.
You obtain information about the patch by accessing the cluster and viewing patch information.
Preparing for Patch Installation¶
Follow instructions in Performing a Health Check to check cluster status. If the cluster health status is normal, install a patch.
You need to confirm the target patch to be installed according to the patch information in the patch content.
Installing a Patch¶
Log in to the MRS console.
Choose Clusters > Active Clusters and click the name of the cluster to be queried to enter the page displaying the cluster's basic information.
On the Patches tab page, click Install in the Operation column to install the target patch.
Note
Clusters of versions later than MRS 1.7.2 support rolling patch installation. For details, see Rolling Patches.
For the isolated host nodes in the cluster, follow instructions in Restoring Patches for the Isolated Hosts to restore the patch.
Uninstalling a Patch¶
Log in to the MRS console.
Choose Clusters > Active Clusters and click the name of the cluster to be queried to enter the page displaying the cluster's basic information.
On the Patches page, click Uninstall in the Operation column to uninstall the target patch.
Note
Clusters of versions later than MRS 1.7.2 support rolling patch installation. For details, see Rolling Patches.
For the isolated host nodes in the cluster, follow instructions in Restoring Patches for the Isolated Hosts to restore the patch.