Abstract
To understand how high availability works in WebSphere Application Server 7 Network Deployment (WAS-ND), you first have to understand how to distinguish high availability from scalability. These concepts have a large overlap due to the horizontal “scale out” scalability features that also result in higher availability. This chapter concentrates on just those components that recover singleton functionality on another WAS instance when the original instance fails; i.e., the emphasis is on singletons and their state management. Both scalability and high-availability features are unique to WAS-ND and the products that build upon it.
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© 2009 Colin Renouf
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(2009). High Availability. In: Pro IBM® WebSphere® Application Server 7 Internals. Apress. https://doi.org/10.1007/978-1-4302-1959-0_9
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DOI: https://doi.org/10.1007/978-1-4302-1959-0_9
Publisher Name: Apress
Print ISBN: 978-1-4302-1958-3
Online ISBN: 978-1-4302-1959-0
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