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Fixing missing pubsub notification for programSubscribe and logsSubscribe (backport #19092) #19207
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…ribe (#19092) #18587: programSubscribe is missing notifications randomly. The issue is because of two reasons Not all rooted slots get OptimisticallyConfirmed notifications The OptimisticallyConfirmed notifications can be out of order for slots: slot A and B with A < B can see notification for B first before A. Summary of Changes Changed OptimisticallyConfirmedBankTracker to send notifications for parent banks if they have not been notified yet. We use a new variable last_notified_slot to track that. Tests: With my validator running against testnet, before the fix, it was failing 75% of time, with the fix, it is passing consistently. Using the program mentioned in #18587. (cherry picked from commit 1a372a7)
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This is an automatic backport of pull request #19092 done by Mergify.
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