Chris Lu 00ce1c6eba feat(plugin): enhanced collection filtering for volume balance (#8620) ...

* feat(plugin): enhanced collection filtering for volume balance

Replace wildcard matching with three collection filter modes:
- ALL_COLLECTIONS (default): treat all volumes as one pool
- EACH_COLLECTION: run detection separately per collection
- Regex pattern: filter volumes by matching collection names

The EACH_COLLECTION mode extracts distinct collections from metrics
and calls Detection() per collection, sharing the maxResults budget
and clusterInfo (with ActiveTopology) across all calls.

* address PR review: fix wildcard→regexp replacement, optimize EACH_COLLECTION

* address nitpick: fail fast on config errors (invalid regex)

Add configError type so invalid collection_filter regex returns
immediately instead of retrying across all masters with the same
bad config. Transient errors still retry.

* address review: constants, unbounded maxResults, wildcard compat

- Define collectionFilterAll/collectionFilterEach constants to
  eliminate magic strings across handler and metrics code
- Fix EACH_COLLECTION budget loop to treat maxResults <= 0 as
  unbounded, matching Detection's existing semantics
- Treat "*" as ALL_COLLECTIONS for backward compat with wildcard

* address review: nil guard in EACH_COLLECTION grouping loop

* remove useless descriptor string test

2026-03-13 17:02:59 -07:00

3.2 KiB

Raw Blame History

View Raw