#HannSoft - Twitter Hashtag

2 days ago

Part 2 of our buffer pool series. A large scan can push every hot page out of a plain LRU buffer pool. PostgreSQL moved through ARC, 2Q and clock sweep to solve it. MySQL's InnoDB kept LRU and split the list. #MySQL #InnoDB #DatabaseInternals #SystemDesign #HannSoft

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HannSoft @hannsoft_org

4 days ago

In January 2005, PostgreSQL 8.0 shipped ARC (adaptive replacement cache), an algorithm from IBM Research that stops one large scan from flushing every hot page out of the buffer pool. #PostgreSQL #DatabaseInternals #SystemDesign #BackendEngineering #HannSoft

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HannSoft @hannsoft_org

5 days ago

After the $6.36B Binance theft (per TRM Labs), stablecoin issuers moved before the exchange did. Tether froze the main receiving wallet at 21:01 UTC; Binance reportedly paused withdrawals more than an hour later. #Binance #CryptoSecurity #EIP7702 #Web3Security #HannSoft

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HannSoft @hannsoft_org

6 days ago

On 29 October, $6.36B left Binance wallets across ten blockchains, most of it within about 20 minutes (per TRM Labs) #Binance #CryptoSecurity #EIP7702 #Ethereum #HannSoft

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HannSoft @hannsoft_org

8 days ago

Kafka said OK and the payment was gone. acks, ISR, min.insync.replicas, and why exactly-once won’t stop a double charge. Part 3 of 3. Comment KAFKA and I’ll send you our Kafka production checklist. #Kafka #ApacheKafka #SystemDesign #HannSoft #SoftwareEngineering

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