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Extending OpenStack
book

Extending OpenStack

by Omar Khedher
February 2018
Intermediate to advanced content levelIntermediate to advanced
300 pages
6h 17m
English
Packt Publishing
Content preview from Extending OpenStack

Defining cells

The concept of the cell was introduced to add another scalability layer, more specifically on top of Nova services. When designed to scale our compute infrastructure horizontally, this might add more load to the shared infrastructure services, such as message queues and databases. Although the latter common service can be clustered and designed for fault tolerance, performance degradation is still possible. As hundreds of compute nodes submit requests and API calls to message queues and databases, expanding the compute fleet power might result in a bottleneck at this level. To simplify this concept, each compute endpoint will be maintained individually. Each endpoint will be considered as a child cell derived from a parent ...

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Publisher Resources

ISBN: 9781786465535Supplemental Content