Files
LocalAI/core/application/watchdog_test.go
Ettore Di Giacinto bbcaebc1ef feat(concurrency-groups): per-model exclusive groups for backend loading (#9662)
* feat(concurrency-groups): per-model exclusive groups for backend loading

Adds `concurrency_groups: [...]` to model YAML configs. Two models that share
a group cannot be loaded concurrently on the same node — loading one evicts
the others, reusing the existing pinned/busy/retry policy from LRU eviction.

Layered design:
- Watchdog (pkg/model): per-node correctness floor — on every Load(), evict
  any loaded model that shares a group with the requested one. Pinned skips
  surface NeedMore so the loader retries (and ultimately logs a clear
  warning), instead of silently allowing the rule to be violated.
- Distributed scheduler (core/services/nodes): soft anti-affinity hint —
  scheduleNewModel prefers nodes that don't already host a same-group
  model, falling back to eviction only if every candidate has a conflict.
  Composes with NodeSelector at the same point in the candidate pipeline.

Per-node, not cluster-wide: VRAM is a node-local resource, and two heavy
models running on different nodes is fine. The ConfigLoader is wired into
SmartRouter via a small ConcurrencyConflictResolver interface so the nodes
package keeps a narrow surface on core/config.

Refactors the inner LRU eviction body into a shared collectEvictionsLocked
helper and the loader retry loop into retryEnforce(fn, maxRetries, interval),
so both LRU and group enforcement share busy/pinned/retry semantics.

Closes #9659.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(watchdog): sync pinned + concurrency_groups at startup

The startup-time watchdog setup lives in initializeWatchdog (startup.go),
not in startWatchdog (watchdog.go). The latter is only invoked from the
runtime-settings RestartWatchdog path. As a result, neither
SyncPinnedModelsToWatchdog nor SyncModelGroupsToWatchdog ran at boot,
so `pinned: true` and `concurrency_groups: [...]` only became effective
after a settings-driven watchdog restart.

Fix by adding both sync calls to initializeWatchdog. Confirmed end-to-end:
loading model A in group "heavy", then C with no group (coexists),
then B in group "heavy" now correctly evicts A and leaves [B, C].

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fix(test): satisfy errcheck on new os.Remove in concurrency_groups spec

CI lint runs new-from-merge-base, so the existing pre-existing
`defer os.Remove(tmp.Name())` lines are baseline-grandfathered but the
one introduced by the concurrency_groups YAML round-trip test is held
to errcheck. Wrap the remove in a closure that discards the error.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
2026-05-05 08:42:50 +02:00

48 lines
1.4 KiB
Go

package application
import (
"github.com/mudler/LocalAI/core/config"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var _ = Describe("extractModelGroupsFromConfigs", func() {
It("returns an empty map when no config declares groups", func() {
out := extractModelGroupsFromConfigs([]config.ModelConfig{
{Name: "a"},
{Name: "b"},
})
Expect(out).To(BeEmpty())
})
It("returns each model's normalized groups", func() {
out := extractModelGroupsFromConfigs([]config.ModelConfig{
{Name: "a", ConcurrencyGroups: []string{" heavy ", "vision", "heavy"}},
{Name: "b", ConcurrencyGroups: []string{"heavy"}},
{Name: "c"}, // no groups → omitted
})
Expect(out).To(HaveLen(2))
Expect(out["a"]).To(Equal([]string{"heavy", "vision"}))
Expect(out["b"]).To(Equal([]string{"heavy"}))
Expect(out).ToNot(HaveKey("c"))
})
It("omits models whose groups normalize to empty", func() {
out := extractModelGroupsFromConfigs([]config.ModelConfig{
{Name: "blanks", ConcurrencyGroups: []string{"", " "}},
})
Expect(out).To(BeEmpty())
})
It("skips disabled models so they cannot block loading after re-enable", func() {
disabled := true
out := extractModelGroupsFromConfigs([]config.ModelConfig{
{Name: "a", ConcurrencyGroups: []string{"heavy"}, Disabled: &disabled},
{Name: "b", ConcurrencyGroups: []string{"heavy"}},
})
Expect(out).To(HaveLen(1))
Expect(out).To(HaveKey("b"))
Expect(out).ToNot(HaveKey("a"))
})
})