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Brad Hubbard, 03/07/2024 02:58 AM
CDM 06-MAR-2024¶
- [Brad] Initial discussions around protecting the manager -> mon queue from overload by rogue modules- Get a better understanding of what this throttle ("throttle-mgr_mon_messsages") represents (and why it seems to have any relation to the volume plugin)
- Try a test where the volumes plugin is artificially hung
- Fail the fs (cephfs fail [fsname]), spawn a bunch of clients that send messages to the volumes plugin and see if we see this scenario happening. Something like `ceph fs subvolume create <fs_name> subvol.XYZ`.
- Allocate each client a number of slots in the throttle and use this to ensure some level of fairness in servicing each module
- Note that we may have a far better understanding of how to resolve this once we have a far better understanding of the issue described in item 1 which is hitherto not really comprehensively understood.
Updated by Brad Hubbard about 2 months ago · 10 revisions