Backport to 2.29.x: #10349: Fix flaky cagg_hierarchical_concurrent_refresh - #10375
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Synchronize with a lock on cagg_6h's materialization hypertable instead. L1 cagg refresh is blocked on the lock mid-txn 3 after deleting its processed log entries but before the commit. While L2 moves and process its log entries concurrently, blocking only when it starts materializing from cagg_6h. (cherry picked from commit 62575c3)
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July 31, 2026 14:30
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This is an automated backport of #10349: Fix flaky cagg_hierarchical_concurrent_refresh.
This PR will be merged automatically after all the relevant CI checks pass. If this fix should not be backported, or will be backported manually, just close this PR. You can use the backport branch to add your changes, it won't be modified automatically anymore.
For more details, please see the documentation
Original description
Fix flaky cagg_hierarchical_concurrent_refresh
Synchronize with a lock on cagg_6h's materialization hypertable instead. L1 cagg refresh is blocked on the lock mid-txn 3 after deleting its processed log entries but before the commit. While L2 moves and process its log entries concurrently, blocking only when it starts materializing from cagg_6h.