Reputation: 536
How does DynamoDB adaptive scaling rebalance partitions?
In the DynamoDB doc, it is written:
If your application drives disproportionately high traffic to one or more items, adaptive capacity rebalances your partitions such that frequently accessed items don't reside on the same partition.
My question is:
what exactly is meant by “rebalance” ?
Are some items copied to a new partition and removed from the original one ?
Does this process impact performance?
How long does it take ?
Upvotes: 0
Views: 139
Answers (1)
Reputation: 7142
Items are split across two new partitions. The split initiates when the database decides there's been enough sustained traffic in a spread pattern where a split would be beneficial, and then the split itself takes a few minutes. In testing with on-demand tables (where I created synthetic sustained traffic) I've seen the throughput double and then double again, repeating about every 15 minutes.
Upvotes: 2
Related Questions
- Where to find XAML namespace d="http://schemas.microsoft.com/expression/blend/2008" mapping library?
- How can you find the available Namespaces and their contents in C#?
- XAML namespace identifier for UWP control
- namespace not found in xaml, but can be used in C# code
- Access namespace not defined exactly in XAML
- How can I know which assembly contains a given namespace? - C#
- Namespaces in XAML
- get namespace in windows phone silverlight 8.1
- XAML (WPF) Namespace?
- finding the namespace from an xml stream in C#