test: check pooled per-object blob digest in antithesis observer#3493
Merged
halfprice merged 1 commit intoJun 30, 2026
Merged
Conversation
Mirror the simtest wiring from #3490 into the Antithesis cross-node invariant observer. The observer scrapes Prometheus metrics from all storage nodes and crashes on cross-node divergence, which Antithesis surfaces as a test failure. Add walrus_per_object_pooled_blob_info_consistency_check as a new hard invariant alongside the regular per-object check: same epoch-bucket saturation guard, same no-data silent-regression guard, and crash on mismatched digests across nodes.
halfprice
deleted the
zhewu/add_pooled_blob_consistency_check_in_antithesis
branch
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Mirrors the simtest wiring from #3490 into the Antithesis cross-node invariant observer.
#3490 added the
walrus_per_object_pooled_blob_info_consistency_checkgauge and verified it across nodes in the simtestBlobInfoConsistencyCheck. This PR adds the equivalent check to the Antithesis side: the observer (docker/walrus-antithesis/build-test-config-image/files/run-observer.sh) scrapes Prometheus metrics from all storage nodes and crashes on cross-node divergence, which Antithesis surfaces as a test failure.Changes
walrus_per_object_pooled_blob_info_consistency_checkas a new hard invariant (per-epoch digest must match across all nodes), mirroring the existing per-object check:MAX_EPOCH_BUCKETSbucket-saturation guard (skip comparison near wraparound to avoid false positives).NO_DATA_PATIENCEsilent-regression guard (crash if no common data for too long).per_object_pooled_no_data_streakcounter.Testing
bash -npasses; shellcheck pre-commit hook passes.