[LU-11077] Client-specific tunable parameter configuration

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Labels: easy lug24dd
• Assignee: Fred Dilger
• Reporter: Ben Evans (Inactive)

Description

With nodemaps, the MGS should be able to configure individual nodemaps to have different parameters, like JOBID_VAR if one cluster is scheduled by SLURM and one is scheduled by lfs.

Adding a "-N NODEMAP" argument to the "lctl set_param" command line would be a good interface, and store the parameters into an FSNAME-client:NODEMAP file on the MGS that is sent to clients that are part of the nodemap.

Issue Links

• is duplicated by: LU-18491 Patch LU-11077 breaks single node testing
• is related to: LU-14639 confusion of lru_size=0 if lru-resize disabled
• is related to: LU-16931 add lctl mechanism (list_param?) to report changes to tunable parameters
• is related to: LU-10360 use Imperative Recovery logs for client->MDT/OST connections
• is related to: LU-15246 Add per device adaptive timeout parameters