Big Data SMACK by Raul Estrada & Isaac Ruiz

Author:Raul Estrada & Isaac Ruiz
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

It Is Difficult to Have a Distributed System

There are several tasks that must be inherently performed when having a distributed system. This includes not only monitoring what is happening, but also making a deployment in a whole cluster. It is a task that must not jeopardize the current version but must reach all the nodes. Each deploy implies a process to ensure that all nodes are ready to accept it.

And finally, we need to know which resources are available within the entire cluster, which are down (a node could go down for any reason), and which were recently added (when a new node is added to the cluster).

All of this results in high-cost data centers, where every hour of wasted time can lead to unnecessary but costly businesses expenses.

In summary, it’s not easy to implement and maintain a distributed system. Figure 7-5 shows some of the main problems of working with distributed environments when increasing the number of nodes.

Figure 7-5.Typical distributed system tasks that increase the complexity regardless the number of nodes

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