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Type: Build Failure
Resolution: Fixed
Priority: Major - P3
Fix Version/s: WT12.0.0, 9.1.0-rc0
Affects Version/s: None
Component/s: Evergreen
Labels:
- BB-Tools
- CI-blocker

Assigned Teams:

Storage Engines - Foundations
Total Hours with Assigned Team:
226.406
Sprint:
None
Story Points:
None
Evergreen Project:
- wiredtiger
Failure Type:
- failed
Failing Buildvariants:
Failing Tasks:
First Failing Revision:
- 05921ca764dc51206fa95fe3274e81a66fb8774b(wiredtiger)
Linked BFG List:
https://buildbaron.corp.mongodb.com/ui/#/bf/WT-18090
Count of Linked BFGs (Last 30 days):
0

unit-test-hook-disagg-leader-table-bucket03 on amazon2023-arm64-asan

Host: i-0e8c95516f1d4d098
Project: wiredtiger
Commit: 05921ca7
Please refer to BF(G) Playbook for instructions on handling BF and BFG tickets as well as Auto-Resolution Rules

Task Logs:

task unit-test-hook-disagg-leader-table-bucket03

unit-test-hook-disagg-leader-table-bucket03 task_log

Logs:

[2026/07/14 20:17:33.583] [pid:12310]: ERROR: None
[2026/07/14 20:17:33.583] ----------------------------------------------------------------------
[2026/07/14 20:17:33.583] [pid:12310]: Traceback (most recent call last):
[2026/07/14 20:17:33.583]   File "/data/mci/f7b97c137e6e4c77061600b3430409cf/wiredtiger/test/suite/helpers/wttest.py", line 162, in wrapper
[2026/07/14 20:17:33.583]     return func(self, *args, **kwargs)
[2026/07/14 20:17:33.583]   File "/data/mci/f7b97c137e6e4c77061600b3430409cf/wiredtiger/test/suite/helpers/wttest.py", line 310, in _callTestMethod
[2026/07/14 20:17:33.583]     method()
[2026/07/14 20:17:33.583]   File "/data/mci/f7b97c137e6e4c77061600b3430409cf/wiredtiger/test/suite/test_checkpoint06.py", line 107, in test_rollback_truncation_in_checkpoint
[2026/07/14 20:17:33.583]     self.assertEqual(cursor[i], value)
[2026/07/14 20:17:33.583]   File "/data/mci/f7b97c137e6e4c77061600b3430409cf/wiredtiger/cmake_build/lang/python/wiredtiger/swig_wiredtiger.py", line 332, in __getitem__
[2026/07/14 20:17:33.583]     raise KeyError
[2026/07/14 20:17:33.583] KeyError

logs

is related to

WT-17426 [Disagg] test_checkpoint06: KeyError reading back key after rollback truncation in checkpoint (disagg-leader hook)

Open

WT-18008 [Verify] race-condition-stress-asan-test-3 timeout: possible stall in new HS verify logic (__verify_key_hs) under ASAN

Open

WT-18138 test_size_stats01.test_size_metrics: 'scanned' stat mismatches 'key_count' (regression after WT-18117 fix)

Open

WT-17594 test/format (mode=switch) PALI/btree page count mismatch — unreferenced pages not discarded

In Progress

WT-18142 failed: format-stress-test-disagg-switch-1 Checkpoint Cleanup issues a writes as a follower

Needs Scheduling

related to

WT-17908 test_stat17.test_correction_persists_in_memory assert Failure

Open

WT-18153 Remove installer.sh workaround

Blocked

WT-18165 [disagg] test/format switch/leader: __wti_delete_page_instantiate 'page->entries > 0' assertion abort reading WiredTigerSharedHS.wt_stable

Open

WT-18166 [disagg] test/format disagg-switch: mirror data mismatch (table_verify_mirror base_keyno == table_keyno) after disagg_switch_roles

Closed

(4 related to)

Assignee:: Alexander Pullen
Reporter:: xgen-buildbaron-user
Votes:: 0 Vote for this issue
Watchers:: 5 Start watching this issue

Created:: Jul 14 2026 11:58:10 PM UTC
Updated:: Jul 23 2026 09:37:19 AM UTC
Resolved:: Jul 22 2026 04:38:40 AM UTC

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