Cloud & Networking
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You're reading from  OpenStack Essentials. - Second Edition

Product typeBook
Published inAug 2016
PublisherPackt
ISBN-139781786462664
Edition2nd Edition
Tools
OpenStack
Concepts
Cloud Computing
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Author (1)
Dan Radez
Dan Radez
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Dan Radez

Dan Radez joined the OpenStack community in 2012 in an operator role. His experience is focused on installing, maintaining, and integrating OpenStack clusters. He has been given the opportunity to internationally present OpenStack content to a range of audiences of varying expertise. In January 2015, Dan joined the OPNFV community and has been working to integrate RDO Manager with SDN controllers and the networking features necessary for NFV. Dan's experience includes web application programming, systems release engineering, and virtualization product development. Most of these roles have had an open source community focus to them. In his spare time, Dan enjoys spending time with his wife and three boys, training for and racing triathlons, and tinkering with electronics projects.
Read more about Dan Radez

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Highly available database and message bus

The database and the message bus are not necessarily OpenStack services, but they are services that OpenStack depends on and that you want to be sure are highly available too. One option to make the database highly available is to add it to Pacemaker with a shared storage device. If the database were to fail on a node, then Pacemaker would move the shared storage to another node and start the database on a different node. There are also active/passive and active/active replication scenarios that can be configured for the database. Active/passive means that there is more than one instance of the database running, but only one of them is used as the active writable instance. The other instance(s) are there as passive backups and only become active if the current active instance needs to fail over for some reason. Active/active means that there is more than one active writable instance of the database. These are running on different nodes and each can...

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OpenStack Essentials. - Second Edition
Published in: Aug 2016Publisher: PacktISBN-13: 9781786462664
© 2016 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Dan Radez

Dan Radez joined the OpenStack community in 2012 in an operator role. His experience is focused on installing, maintaining, and integrating OpenStack clusters. He has been given the opportunity to internationally present OpenStack content to a range of audiences of varying expertise. In January 2015, Dan joined the OPNFV community and has been working to integrate RDO Manager with SDN controllers and the networking features necessary for NFV. Dan's experience includes web application programming, systems release engineering, and virtualization product development. Most of these roles have had an open source community focus to them. In his spare time, Dan enjoys spending time with his wife and three boys, training for and racing triathlons, and tinkering with electronics projects.
Read more about Dan Radez

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