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Distributed Services with Go
book

Distributed Services with Go

by Travis Jeffery
March 2021
Intermediate to advanced
260 pages
5h 45m
English
Pragmatic Bookshelf
Content preview from Distributed Services with Go

The Log Is a Powerful Tool

Folks who develop storage engines of filesystems and databases use logs to improve the data integrity of their systems. The ext filesystems, for example, log changes to a journal instead of directly changing the disk’s data file. Once the filesystem has safely written the changes to the journal, it then applies those changes to the data files. Logging to the journal is simple and fast, so there’s little chance of losing data. Even if your computer crashed before ext had finished updating the disk files, then on the next boot, the filesystem would process the data in the journal to complete its updates. Database developers, like PostgreSQL, use the same technique to make their systems durable: they record changes to ...

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Publisher Resources

ISBN: 9781680508376Errata Page