databendlabs / openraft / 24350907887

86%

Build Type

push

github

Committed by drmingdrmer

Commit Message

fix: log-stage panics and empty follower histograms

Two invariants of the log-stage path only held on the leader:

1. `RangeMap::record` required strictly monotonic right boundaries.
   A follower that truncated and re-appended an entry at the same
   index under a new term panicked at startup.

2. `compute_histograms` walks the intersection of all six stages, but
   followers never record `Proposed`/`Received` — those only happen
   on the proposing leader — so the intersection was empty and every
   follower's log-stage histogram stayed empty.

Changes:

- `RangeMap::record`: drop trailing entries with boundary `>= right`
  before pushing; tail-popped entries are not evictions.
- `LogStages::record_stage`: back-fill earlier stages behind `right`
  with the current `value` (zero step = "didn't happen here").

- Fix: #1710

Coverage Stats

143 of 143 new or added lines in 3 files covered. (100.0%)

2 existing lines in 1 file now uncovered.

16335 of 18888 relevant lines covered (86.48%)

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