Other

SQS

pull based system
max 256 KB message size
decouples producer and consumer of messages
types
- standard (default)
  - unlimited TPS
  - not ordered, best effort
  - a least one message deliveried
- fifo
  - ordered perserved
  - limited to 300 TPS
message lifetime 1 minute to 14 days, default is 4 days
visiblity timeout, time message is invisible after it has been picked up a reader
- default 30 seconds
- max 12 hours
polling
- short polling
- long polling
  - waits for message or timeout

SNS - Simple Notification Service

push notification
- SMS
- email
- SQS
- HTTP endpoint
- lambda function
pub/sub model
topics
- multiple subscribers
- stored redundantly
pay as you go,
- $0.50 per 1 million requests
- $0.06 per 100,000 HTTP notifications
- $0.75 per 100 SMS notifications
- $2.00 per 100,000 emails

SES - Simple Email Service

pay as you go
can receive emails delivered to S3 bucket
incoming emails can trigger lambda or SNS notifications

Kinesis

streaming data service
load and analyze stream data
types of streams
- Video
  - not covered ??
- Streams
  - store for 24 hours (default) up to 7 days
  - stored in shards
  - consumers
    - EC2, Lambda, EMR, Kinesis Data Analytics
  - a single shard
    - reads 5 TPS, up to 2 MB per second
    - writes 1000 TPS, up to 1 MB per second
    - 10 shards limited per region
- Firehose
  - automated streams
  - no data retention
  - data sent to S3 or Elasticsearch Cluster
- Analytics
  - SQL queries of dta
  - store query results into S3, RedShift, Elasticsearch Cluster

Systems Manager Parameter Store

versioned key value store
standard
- up to 10,000 parameters
- 4 KB max values size
advanced
- more than 10,000 parameters
- 8 KB max values size
value types
- String
- StringList
- SecureString
  - Encrypt using KMS key