Allow hide TIP events only for specific nodes instead of all entities

TIP events are very useful to give an advice for some parameters to have configuration best practices and to achieve best performance on Scale Clusters.

For example :

• hc_alert_scalehc_00006 = NumaInterleave is not enabled on a multi-CPU system

• hc_core_memory_00088 = On Linux systems it is recommended you adjust the vm.min_free_kbytes kernel tunable.

However, for some mixed / multi-platform environment, the settings are not valid for all nodes within the cluster the recommended setting is not applicable (for example, a witness node with only 4 GB of RAM would not allow to set vm.min_free_kbyte to 2 GB) and then, the administrator hide the event to clear the TIP.

Same is true for other tunings like - pagepool. maxStatCache and maxFilestoCache which might not be possible to tune in the best practice threshold for a client node, but it would be important for all other nodes.

The mmhealth event hide command is cluster-wide, so it hides the event for all entities and all nodes.

This might impact the client, for example, the vm.min_free_kbytes was changed in a protocol node to a smaller value. Although the TIP event would report the value is not ideal for that protocol nodes, because it is hidden, it does not notify the administrator.

The request is to add the -N option the the mmhealth command.

# mmhealth event hide <event> -N <nodes>