fix(cluster): PCM-X convert-queue closure — dirty-N flush, churn recovery, self-ACK, rejoin contract#62

Merged

sqlrush merged 9 commits into

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fix/nightly-clusterquad-xid-striping

Jul 18, 2026

Commits on Jul 18, 2026

test(cluster): t/370 rejoin leg — striping substrate + interim fail-closed contract
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test(cluster): gate DML on PCM-X formation ACTIVE in the pair/quad harness
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fix(cluster): dispatch the master self INVALIDATE_ACK through the tag shard
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fix(cluster): blocker-stage source namespace + terminal-leg responder classification
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fix(cluster): flush-then-BUSY for legally dirty pre-grant N pages
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fix(cluster): recover transient membership churn instead of closing the runtime
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test(cluster): fixture exactness + counter baselines for the convert-queue lane
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ci(nightly): close the t/400 / t/404 shard gap
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test(cluster): fix illegal "last" inside a do-while in the t/400 drain poll
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