April 2018
Intermediate to advanced
468 pages
14h 34m
English
Content preview from Mastering Kubernetes - Second Edition
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Using DaemonSet for redundant persistent storage
Some stateful applications, such as distributed databases or queues, manage their state redundantly and sync their nodes automatically (we'll take a very deep look into Cassandra later). In these cases, it is important that pods are scheduled to separate nodes. It is also important that pods are scheduled to nodes with a particular hardware configuration or are even dedicated to the stateful application. The DaemonSet feature is perfect for this use case. We can label a set of nodes and make sure that the stateful pods are scheduled on a one-by-one basis to the selected group of nodes.
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