2.2 KiB
2.2 KiB
| id | status | status_updated | status_note | component | severity | timestamp | last_seen | occurrences | files | tags | related | ||||||
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| bug-1943 | open | 2026-10-10 | newly logged | scheduler | wrong-result | 2026-10-10T08:14:54Z | 2026-10-10T08:14:54Z | 1 |
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bug-1943: xce_scheduler --sim does not load user and host groups, so group-scoped limits differ from live
Description
Observed: (source reading, .kiro/reviews/project-gap-review-2026-10-10.md (P0); to be confirmed by a failing test before the fix)
On a config push the live scheduler loads user and host groups (groupmgr_load_configs, src/scheduler/src/scheduler.c:1144-1145); the core's config event used by the simulator applies only resources, resource values and queues (core_events.c:846-850).
Expected: Live and simulated scheduling apply the same groups (scheduler-driver-equivalence.md).
Impact: Replays of clusters with group-scoped limits make different decisions than the live scheduler.
Found by: review: .kiro/reviews/project-gap-review-2026-10-10.md (P0)
Environment
- OS: no /etc/os-release; Docker container; NixOS kernel; kernel Linux 6.18.33 x86_64
- libc: glibc 2.42-47 (interpreter /nix/store/wb6rhpznjfczwlwx23zmdrrw74bayxw4-glibc-2.42-47/lib/ld-linux-x86-64.so.2)
- Toolchain: gcc (GCC) 15.2.0, meson 1.9.1
- Build: asan (xce.build)
- Code: scheduler-framework @ 94472ee3-dirty
- Deployment: any (found by source reading; the failing test that confirms it is named in Verification)
Reproduction
- Record a session with a limit scoped to a user group, replay it with
xce_scheduler --sim. - The limit does not match the group's users in sim.
- Frequency: deterministic (by code reading; confirmed by the RED test of the fix)
- Evidence: the code sites quoted in Description; no logs kept.
Root cause
TODO: required for fixed/partial
Fix
TODO: required for fixed/partial
Verification
- Test: TODO: name + file; RED before the fix, GREEN after
- Suites: TODO: suite results and build profile
- Live: TODO: soak/deploy run, or n/a and why
References
- Related: none