Tuesday, March 7, 2017

AWS - Key Components Limits

Port:

·         SSH: 22
·         RDP: 3389
·         HTTP: 80
·         HTTPS: 443
·         MySQL: 3306
·         Redshift: 5439
·         MS SQL: 1433
ELB
·         Supported Protocols: HTTP/HTTPS/TCP/SSL

·         Supported Ports: 25, 80, 443, 1024 - 36635


Compute

EC2


·         Max Number of Tags – 10 Per EC2 Instance
·         How many regions are there on the AWS platform currently - 11
·         Total Regions Supported for EC2 - 9
·         EC2 Instance Limits (Per Region)
·         On-Demand : 20
·         Reserved: 20
·         SPOT – No Limit
·         Number of EBS volumes - 5000

Auto Scaling

·         Default Cooling Period – 5 mins
·         Health Check Grace Period – 300Secs (5 Mins) Default

Elastic Bean Stalk

·         Default Limit
·         Applications: 75
·         Application Version: 1000
·         Environments: 200

 

Storage

S3


·         Per AWS A/c S3 Buckets – 100 (Call AWS to increase limit)
·         File Size: 1 Byte – 5 TB
·         Object/File Size in Single PUT – 5 GB
·         Multipart Upload – Greater than 100 MB

Glacier

·         1000 Vaults – Per A/c Per Region
·         No Max Limit to the total amount of data.
·         Individual Archives Limit: 1 Byte – 40 TB
·         Object/File Size in Single PUT – 4 GB

Storage Gateway

·         Gateway Stored Volume – 16 TB, 32 Volumes: 512 TB
·         Gateway Cached Volume – 32 TB, 32 Volumes: 1 PB
·         Virtual Tape  – 1 PB (1500 Virtual Tapes) (Takes 24 Hours for retrieval)

Import/Export

·         Max Device Capacity – 16 TB
·         Snowball - Max Device Capacity – 50 TB

CloudFront: (Can be Writable)

·         1000 – Request Per Second
·         Max File Size that can be delivered thru CloudFront – 20 GB
·         TTL – 24 Hrs (86400 secs)
·         Cannot be - RDS, Glacier
·         Can be – S3, EC2, ELB, Route53





Database


RDS:

·         Limit – 40 RDS Instances
·         Max DB on Single SQL-Server Instance – 30
·         Max DB on Single Oracle Instance – 01
·         RDS Backup Retention Period – 1 - 35 Days
·         Read-Replicas – 05
·         MySQL DB Size – 6 TB
·         Maximum RDS Volume size using RDS PIOPS storage with MySQL & Oracle DB Engine  - 6 TB
·         Maximum PIOPS capacity on an MySQL and Oracle RDS instance is 30,000 IOPS (Default)
·         Maximum size for a Microsoft SQL Server DB Instance with SQL Server Express edition – 10 GB (SA Mega Quiz #20)

Dynamo DB

·         Storage – No Limit
·         Single Item Size (Row Size): 1 – 400 KB
·         Local/Global Secondary Index – 05 per Table
·         Streams – Stored for 24 Hours only.
·         Maximum Write Thruput – Can go beyond 10,000 capacity units, but contact AWS first.
·         Projected Non-Key Attributes – 20 Per Table
·         LSIs - Limit the total size of all elements (tables and indexes) to 10 GB per partition key value. (GSI does not have any such limitations)
·         Tags: 50 Tags Per DynamoDB Table
·         Triggers for a Table - Unlimited

RedShift

·         Block Size – 1024 KB
·         Maintain 3 copies
·         Compute Node: 1 – 128
·         Backup Retention Period – 1 Day (Max)


Aurora

·         Maintain 6 copies in 3 AZs

ElastiCache

·         Reserved Cache Nodes – 20
·          




Networking


ELB:

·         Allowed Load balancer : 20
·         Port Supported: HTTP, HTTPS, SSL, TCP
·         Acceptable ports for both the HTTPS/SSL and HTTP/TCP connections are 25, 80, 443, and 1024-65535

Per Region

·         05 - VPCs
·         05 - EIP
·         05  – Virtual Private Gateway
·         50 - VPN Connections
·         50 – Customer Gateway

Per VPC

·         01 - Internet Gateway
·         01 – IP Address Range
·         200 – Subnets
·         20 - EC2 Instances (Default)

Per Subnet

·         01 – AZ
·         01 - ACL

Notes:

·         An instance retains its Private IP and persist across starts and stops
·         Assign multiple IP addresses to your instances
·         EIP is associated with your AWS account and not a particular instance. It remains associated with your account until you explicitly release it.
·         Subnet Cannot Span Multi-AZ
·         Security Group Can Span Multi-AZ
·         N/W ACL Can Span Multi-AZ
·         Route Table Can Span Multi-AZ



Route53

·         Number of domains you can manage using Route 53 is 50  (however it is a soft limit and can be raised by contacting AWS support)

Management


Cloud Watch

·         Logs – Unlimited/ Indefinitely
·         Alarms – 2 Weeks (14 Days)
·         Metrics – 2 Weeks (14 Days)
·         For more, use API – GetMetricStatistics or some third party tools
·         EC2 Metrics Monitoring
·         Standard – 5 Mins
·         Detailed – 1 Min (Paid)

·         Custom Metrics Monitoring – Minimum 1 Min


Cloud Formation

·         Templates – No Limits
·         Stack – 200 Per A/c
·         Parameters – 60 per Template
·         Output – 60 per Template
·         Description Field Size – 4096 Characters

Cloud Trail

·         5 Trails – Per Region
·         Deliver Log Files – Every 5 mins
·         Capture API Activity – Last 7 Days


OpsWorks

·         40 Stacks
·         40 Layers per stack
·         40 Instances per stack
·         40 - Apps per stack

Security


·         Roles: 250 Per AWS Account
·         KMS
·         Master Keys – 1000 Per AWS A/c
·         Data Key – No Limit
·         Resource Base Permission:
·         S3, Glacier, EBS
·         SNS, SQS
·         Elastic Bean Stalk, Cloud Trail

Analytics


EMR:
·         EC2 Instances Across All clusters - 20

  

Application


SQS:

·         Visibility Timeout – 30 Secs (Default) (Otherwise 12 hours) Value must be between 0 seconds and 12 hours.
·         Retention Period – 4 days (Default). Can be set form 1 min to 2 Weeks (14 Days) Value must be between 1 minute and 14 days.
·         Max Long Polling Timeout – 20 Secs Value must be between 0 and 20 seconds.
·         Message Size – 256 KB Value must be between 1 and 256 KB.
·         Number of Queues – Unlimited
·         Number of messages per queue – Unlimited
·         Queue name: 80 characters

SES:

·         SES Email Size – 10 MB (including Attachments)
·         SES Recipients – 50 for every message
·         Sending Limits:

SNS:

·         Topic – 1,00,000 Lakh (Per A/c)
·         Subscription – 10 Million Per Topic (Per A/c)
·         TTL – 04 Weeks

SWF:

·         Retention Period – 1 Year
·         Max workflow execution – 1 Year
·         History of Execution – 90 Days Max
·         Max  Workflow and Activity Types – 10,000
·         Max Amazon SWF domains – 100
·         Max open executions in a domain – 1,00,000

Elastic Encoder

·         Jobs – 10k Per Pipeline


Hope this helps.
Keep Blogging!!!

http://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html

Regards,
Arun Manglick


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