Recorded PVE 8 and PVE 9 guest rrddata responses (fixtures under
pkg/proxmox/testdata/rrd/) prove guest RRD never carries the cache-aware
memused/memavailable columns — they exist only in node RRD — so every
consumer branch reading them was dead code that #1634's listing fallback
(7d7d2b6a3) had already routed around.
Drop the two fields from GuestRRDPoint (now time/maxmem only, matching
the recordings), delete the dead VM RRD memory fallback and its
getVMRRDMetrics/getVMRRDMemory helpers plus the vmRRDMemCache they fed,
remove the pointless per-poll guest RRD fetch from the LXC memory path,
and retire the guest RRD lookups from PVEClientInterface. VMMemoryRaw
loses its never-populated RRD diagnostic fields, and guest reliability
scoring no longer treats the node-only rrd-* sources as trusted guest
evidence. The knownDeadGuestRRDFields allowlist in the fixture
alignment test is gone; a new reflection guard in
code_standards_test.go keeps GuestRRDPoint pinned to recorded columns,
and cleanupRRDCache pruning of the guest-agent meminfo cache gains
direct coverage.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Real PVE guest RRD responses carry only the cache-inclusive mem/maxmem
columns; the cache-aware memused/memavailable columns exist only in node
RRD, so the LXC RRD branches can never match a live response. Removing
the cluster-resources fallback in bf67ba920 therefore left every running
LXC reporting unavailable memory, rendered as 0% (#1634).
Running containers now fall back to the listing value under the
low-trust cluster-resources source when cache-aware RRD evidence is
absent; unavailable remains reserved for running containers with no
listing evidence at all.
Fixes#1634
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ac0fb263c changed preserved guests to carry their real runtime status
("running") instead of the stringified aggregate status ("online"). The
three guest metric recording loops gate on Status == "running", so guests
carried forward while their node sits in the grace period started passing
that gate. The carried-forward projection has no counters, so every cycle
wrote CPU, disk and network zeroes into the history and the persistent
store. Sparklines and stored metrics showed a collapse to zero for a guest
Pulse could not see, rather than a gap. Memory escaped only by accident,
because the projection leaves usage unknown and historyMemoryUsage returns
the -1 sentinel.
Freshly built guests are stamped with the cycle's sample time while
preserved guests keep the LastSeen of the cycle that observed them, so that
field already distinguishes the two. All three loops now gate on
guestObservedInCycle: the efficient path in recordGuestMetrics, and the
traditional VM and container paths, which had the same defect inline.
The guard fails open when LastSeen is absent. Dropping a real sample is the
worse error and the harder one to notice, so no evidence means record.
Regression coverage asserts both directions, and both were verified by
breaking them: removing the guard reports the fabricated zero sample, and
inverting it reports the observed guest losing its sample entirely.
golangci-lint run ./... failed on ~190 pre-existing errcheck violations and
5 unformatted files, burying any new regression in noise. Fix all of them:
- Test files that hand-rolled mock-mode set/restore (vmware, truenas, and
friends) now use the canonical setMockModeForTest/testutil.SetMockMode
helper instead of drift copies that ignored SetEnabled errors.
- internal/mock and internal/monitoring tests get package-local
mustSetEnabled/mustSetMockEnabled/mustSetMonitorMockMode helpers that
fail the test on toggle errors.
- pkg/auth/sqlite_manager.go, pkg/metrics/store.go, pkg/server/server.go:
rollbacks in defers use the explicit-discard idiom, migration renames and
rollup commits log failures, the hosted reaper goroutine logs an error
exit, shutdown mock-disable logs failures.
- Remaining test sites check errors with t.Fatalf/t.Errorf or explicitly
discard best-effort calls (restore-chmods, handler-closure unmarshals)
per existing repo style.
- gofmt: internal/api/maintenance_verification.go, internal/ai/demo.go and
three findings test files.
Only dupl findings remain (44 pre-existing production-code duplication
pairs) — those need real refactors, not mechanical fixes.
Full test suites pass for every touched package.
Prefer QEMU guest-agent MemAvailable when Proxmox reports saturated VM memory without guest free fields.
Add regression coverage for the issue #1319 Windows fsinfo volume payload so usable C/E/F volumes remain counted while System Reserved partitions are skipped.
Refs #1319
rcourtman