Wednesday, August 8, 2012

Amazon RDS Limitations


Amazon RDS Limitations


  • Amazon's RDS service does not provide a shell access the to the machine where it is running. That means we cannot install our own software in that machine. For example we cannot install our own favorite monitoring software in that machine.
  • We need to depend heavily on using Amazon Cloudwatch to monitor RDS instances. 
  • Database Replication support is still at preliminary stage.
  • Database Clustering is not supported yet.
  • We don't have direct access to MySQL configuration. For any configurations we want to do, we need to do it via DB Parameter group using command line tool.
  • Autoscaling is still not supported.
  • Accessing RDS instance is not provided through same API's as EC2. For example you cannot use Elastifox to access your RDS instance.
  • When a DB Instance changes database parameter groups (i.e. it stops using its current DB Parameter Group and starts using another), it must be restarted. However when adding or modifying a parameter the rebooting may depend on whether the add/modify parameter is dynamic or static. 

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