April 2017
Intermediate to advanced
394 pages
10h 31m
English
Content preview from AWS Administration Cookbook
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How to do it...
- Start with the size of the items, in kilobytes (KB):
ItemSize = Size of the items (rows) in KB
- Work out the required number of RCUs required by dividing the number by 4, and rounding up:
RCU Per Item = ItemSize / 4 (rounded up)
- Define the expected number of read operations per second. This is one of the numbers you will use to provision your table with:
Required RCU = Expected Number of Reads * RCU Per Item
- Divide the number by 3,000 to calculate the number of DDB partitions required to reach the capacity:
Read Partitions = Required RCU / 3,000
- Next, work out the write capacity required by dividing the item size by 1, and rounding up:
WCU Per Item = ItemSize / 1 (rounded up)
- Define the expected number of write operations ...
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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.
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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.