April 2018
Intermediate to advanced
508 pages
15h 22m
English
Content preview from PostgreSQL 10 High Performance - Third Edition
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memcached
Memcached starts up with a block of memory it's allowed to use for caching, one that it manages quite efficiently. Like pgBouncer, incoming connections are handled using the libevent library, so that any number can be serviced without timeout issues. The interface to the program lets you define key/value pairs of information that are then stored. Keys can only be up to 250 characters long, and values are limited to 1 MB. The program's popularity comes from how easily it can be used to cache content in a website. Returning to the idea that the best database query is the one that doesn't have to happen, the fastest way to return a database-driven web page a second time is to send a cached copy of it. This avoids both the database ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.