问题
I'm running the following rds instance. However, my write PIOPS is bottlenecked at 20% of the allocated PIOPS.
db.r3.xlarge
Provisioned IOPS (SSD)
5000 PIOPS
600 GB
Do you have any ideas why it's stuck there?
Thank you.
回答1:
Your RDS instance type I/O are limited by two factors. IOPS and throughput. As you don't reach your IOPS limit it's probably your throughput which stuck here.
You have a very interesting piece of documentation here.
You could try to upgrade from r3.xlarge to r3.2xlarge to test your throughput needs and update accordingly.
来源：https://stackoverflow.com/questions/34744104/aws-rds-piops-bottlenecked