fix(fleet): page only host-global OOM and survive observer restart - #396
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vmstat oom_kill includes memory-cgroup envelope hits, and PromQL increase treats a republished boot total as a burst of new kills. Count CONSTRAINT_NONE from the journal and alert on the in-window span. Co-authored-by: Cursor <cursoragent@cursor.com>
Source 40a8402, built twice with CGO_ENABLED=0 go build -trimpath -buildvcs=false -ldflags "-buildid= -s -w -X main.version=v0.1.5-nddev.122 -X main.commit=<source>"; both builds agree on 8997d4f18550bdb94805cfe981390fb4ab2104460bb513f6c95017fac8b1a38b. Co-authored-by: Cursor <cursoragent@cursor.com>
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Provider compiles hostprobe, so CI correctly refused source drift. Second commit is v0.1.5-nddev.122 from source 40a8402, two identical rebuilds at 8997d4f18550bdb94805cfe981390fb4ab2104460bb513f6c95017fac8b1a38b. |
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Summary
gha_fleet_host_oom_kills_totalnow counts host-globalCONSTRAINT_NONEkills from the kernel journal. Memory-cgroup kills stay out of admission and out ofhost_oom_detected.host_oom_detectedpages on the in-window span of that counter, notincrease(). Observer restart republishing the boot total was paging 4 and 3 with no dmesg.make build-controllerstampsgha-pressure-observerwith the same version/commit as the other host binaries.Test plan
go test ./...in the public modulegha-fleet+gha-pressure-observer+gha-fleet-observer+ rules, reconcile OpenObserve, pin hashes in a new estate audit. Do not rewrite historical identity records. Do not mark go-cache-prewarm applied.