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Type: Build Failure
Resolution: Fixed
Priority: Major - P3
Fix Version/s: WT12.0.0, 8.3.0-rc0
Affects Version/s: None
Component/s: Cache and Eviction
Labels:
- CI-blocker

Assigned Teams:

Storage Engines - Transactions
Sprint:
SE Transactions - 2026-03-13
Story Points:
5
Evergreen Project:
- wiredtiger
Failure Type:
- failed
Failing Buildvariants:
Failing Tasks:
First Failing Revision:
- 0535a11de0a32d01e47c3121b960fee40b55246a
Linked BFG List:
https://buildbaron.corp.mongodb.com/ui/#/bf/WT-16571
Count of Linked BFGs (Last 30 days):
13

unit-test failed on ~ RHEL8 zSeries

Host: N/A
Project: WiredTiger (develop)
Commit: diff: ~~WT-16404~~-verify-test-model: Merge branch 'develop' into ~~WT-16404~~-verify-test-model | 30 Jan 26 05:10 UTC
Evergreen Subscription: ; Evergreen Event:

Task Logs (unit-test)

Failure message:

[pid:40413]: ERROR: test_layered55.test_layered55.test_obsolete_time_window(palite)
----------------------------------------------------------------------
[pid:40413]: testtools.testresult.real._StringException: lost connection during test 'test_layered55.test_layered55.test_obsolete_time_window(palite)'
----------------------------------------------------------------------
Ran 13399 tests in 1743.815s

is related to

WT-16523 Verify fails because of timestamps mismatch when writing deltas vs reading deltas

Closed

WT-16404 Re-enable verify in test/model for disagg

Closed

WT-16877 Make __wt_layered_table_manager.leader to be wt_shared

Needs Scheduling

WT-16879 Fix the potential data race between open btree or open dhandle and primary step down

Needs Scheduling

related to

WT-16870 Review the workflow of reopen_disagg_conn to disable shutdown checkpoint

Needs Scheduling

Assignee:: Shoufu Du
Reporter:: Xgen-Evergreen-User
Votes:: 0 Vote for this issue
Watchers:: 10 Start watching this issue

Created:: Jan 30 2026 03:32:57 PM UTC
Updated:: Mar 12 2026 12:07:26 AM UTC
Resolved:: Mar 10 2026 05:52:07 AM UTC

Details

Description

unit-test failed on ~ RHEL8 zSeries

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