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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: WT12.0.0, 8.3.0-rc0
Affects Version/s: None
Component/s: Checkpoints
Security Level: Public (Available to anyone on the web)
Labels:
- lc_bulk_04_29_26

Assigned Teams:

Storage Engines, Storage Engines - Persistence
Total Hours with Assigned Team:
4,561.39
Sprint:
None
Story Points:
None

WiredTiger currently uses the checkpoint_meta config option to specify the metadata of a checkpoint that a follower needs to pick up. The current format has only one field called metadata_lsn, which specifies the LSN associated with the checkpoint metadata page at table_id = 1, page_id = 1.

However, unlike other pages, the metadata page is not checksummed at the WiredTiger level. To increase the confidence in correctness, we should therefore calculate a checksum of the metadata page and store it in checkpoint_meta.

As this is a data format change—albeit a kind with straightforward upgrade/downgrade paths—we should prioritize it.

is related to

WT-15917 Remove the redundant code that do more scrub eviction for disagg

Backlog

WT-15807 test_layered39 aborts when closing dhandle as part of verify

Closed

WT-15966 Don't garbage collect a prepared update until its durable timestamp or rollback timestamp is behind the prune timestamp

Closed

WT-15797 disagg: remove sleep in dhandle lock loop

Closed

WT-15977 Reenable verify in teardown for layered Python tests

Closed

WT-15915 test/format (disagg.mode=leader) verify failure (no deltas) mismatch in number of Page IDs

Closed

WT-15999 Add virtual destructor to kv_transaction_snapshot

Closed

related to

WT-15917 Remove the redundant code that do more scrub eviction for disagg

Backlog

WT-15807 test_layered39 aborts when closing dhandle as part of verify

Closed

WT-15966 Don't garbage collect a prepared update until its durable timestamp or rollback timestamp is behind the prune timestamp

Closed

WT-16000 Make the checksum parameter in "checkpoint_meta" required

Open

WT-15977 Reenable verify in teardown for layered Python tests

Closed

WT-16396 Log a warning if required checkpoint parameters in "checkpoint_meta" are missing

Closed

WT-15577 Eviction server statistics should track every reason that a page isn't queued for eviction

Closed

WT-13815 Fix: Checkpoint doesn't recover the truncated space [test_checkpoint33]

Closed

WT-15915 test/format (disagg.mode=leader) verify failure (no deltas) mismatch in number of Page IDs

Closed

WT-15999 Add virtual destructor to kv_transaction_snapshot

Closed

(2 is related to, 10 related to)

Assignee:: Peter Macko
Reporter:: Peter Macko
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: Nov 08 2025 12:17:48 AM UTC
Updated:: May 04 2026 11:40:37 PM UTC
Resolved:: Nov 11 2025 03:10:40 AM UTC

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