core components
table: a collection of items
item: a collection of attributes
attribute
primary key: identify item
- Partition key
- Partition key and sort key
secondary index: 用来query
DynamoDB Stream: 有写操作的时候可以触发event
DAX 可以用来作为DynamoDB的cache
local test
docker image
https://hub.docker.com/r/cnadiminti/dynamodb-local/
Throughput
- Read capacity unit: 4KB/sec
- Write capacity unit: 1KB/sec
Operations
- table operations
- item operations
- query and scan operations