Eight tests in this crate called a recorder and asserted nothing. Five of them were worse than that: every `record_*` in `list_objects_metrics` returns early unless `get_stage_metrics_enabled()` is true, and that flag defaults to false, so those tests only ever exercised the early return — never the code their names describe.
They now run against a local `DebuggingRecorder` with the flag on, and each asserts the boundary it is named for: an empty page reports the scan count as its amplification instead of dividing by zero, a zero read quorum is recorded rather than skipped, index serving divides verification attempts by returned objects, and the `-1` whole-directory sentinel reaches the limit histogram unclamped.
`msgpack_json_fallback_counter_records_without_panicking` has no in-struct total to check, so it now asserts the emission: two direction/message pairs must land in two separate series, which a dropped label would collapse into one.
The two process-sampler tests discarded their snapshots. They now assert what cannot differ between callers — a process has one start time and one descriptor limit regardless of which entry point or which sampler observed it, and the status enum must match its numeric projection.
This clears io-metrics from the census (`scripts/find_assertless_tests.py`), taking the tree from 61 candidates to 53.
Refs backlog#1836
* fix(obs): isolate process sampler windows
Refs rustfs/backlog#1004
Refs rustfs/backlog#986
- add a reusable ProcessSampler so callers can own independent sysinfo refresh windows
- wire separate sampler instances for obs metrics scheduling and memory observability
- keep compatibility helpers while avoiding cross-task CPU and disk delta interference
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs): import process sampler bundle helper
Refs rustfs/backlog#1004
Refs rustfs/backlog#986
- import collect_process_metric_bundle_with in the metrics scheduler
- drop the stale collect_process_metric_bundle import after switching scheduler sampling to independent process samplers
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs): move process sampler into blocking task
Refs rustfs/backlog#1004
Refs rustfs/backlog#986
- move the memory observability process sampler into the spawn_blocking closure
- satisfy the closure static lifetime required by tokio while keeping the isolated sampler design intact
Co-Authored-By: heihutu <heihutu@gmail.com>
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Co-authored-by: heihutu <heihutu@gmail.com>
Zhengchao An