Therefore, when the data is modified, in addition to modifying the data in the buffer pool, the operation is logged in the redo log, and when the transaction is committed, the data is swiped against the redo log record. If MySQL goes down, the data in the redo log can be read on restart to recover the database, thus ensuring the durability of the transaction and giving the database crash-safe capability. Dirty log swipe disk In addition to the above mentioned brush disk for dirty data, in fact, when the redo log log is logged, in order to ensure the durability of the log file, you also need to go through the process of writing logging from memory to disk. The redo log log can be divided into two parts: the cache log redo log buff in volatile memory, and the redo log file redo log file saved on disk. To ensure that each record can be written to a log on disk, the fsync operation of the operating system is called every time the log in the redo log is written to the redo log file.

Star Daily News Bitcoin Wallet Electrum official Twitter announced that the next version of Electrum will support Lightning online payments. Its lightning node implementation has been consolidated into the main branch of Electrum. Electrum also confirmed that the wallet will adopt a new implementation of in-house development written using Python. (Cointelegraph)

In addition, small partners who have used Electrum wallets should be aware that with Thecret phrase generated by Electrum, we can recover bitcoin keys on any browser using the Bitcoin Wallet web tool. And Electrum is so secure that there is no evidence that the distributed attack prevention system designed by Dark Wallet will be due to Electrum.

Bitcoin Wallet providers like Trezor and Electrum.

Chain News, lightweight Bitcoin Wallet Electrum announced that the next version will support Lightning network payment, implemented using Python, Electrum as a Lightning network node, wallet users do not need to run lightning network nodes to make payments, electrum lightning network nodes have been merged into the Electrum master branch.

Online Bitcoin wallet Blockchain has set a new milestone with more than 1 million users.

The veteran Bitcoin desktop wallet client Electrum has released the official version of 4.0, adding support for several important updates, such as the Lightning network, and has released an updated version 4.0.1. Electrum adds features such as PSBT (partially signed Bitcoin transactions), Lightning Network, watchtowers (暸 watchtowers) and Submarineswaps (subliminal switching) for version 4.0.

Electrum is a popular software wallet that works by connecting to a dedicated server. These servers receive a hash of the Bitcoin address in the wallet and reply with transaction information. Electrum wallets are fast and have few resources, but by default, it connects to these servers and can easily monitor users. In addition to Electrum, some other software uses public Electrum servers. By 2019, it is a faster and better alternative to BIP37.

appdata%-electrum-btcp/wallets.

Qtum Electrum synchronously updates electrum-related code and releases v0.18.9.