February 2015
Intermediate to advanced
170 pages
3h 39m
English
Content preview from Couchbase EssentialsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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RAM matters
Couchbase is a "RAM first, disk second" database. Both the reads and writes are optimized to use RAM. On the write side, documents are written to the memory first and then flushed asynchronously to the disk. While volatile memory might not seem optimal for a database, remember that Couchbase will replicate your data on up to three nodes. Additionally, there are API methods that require a disk write before a write to RAM is considered a success.
On the read side, Couchbase maintains metadata about documents in the RAM to provide faster retrieval. Couchbase will also attempt to store as many documents as it is able to in the memory for faster access. Less available RAM means that Couchbase will need to fetch more documents from the disk. ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.