In this recipe, we will look at tuning the network for better performance. This recipe is very much limited to the operating system parameters and not the optimization of routers or switches.
To step through the recipe in this section, we need at least one node to test and to make the configuration changes, and the same can be applied to all the nodes in the cluster.
/etc/sysctl.conffile to tune parameters which affect the network performance. The parameters shown in the next steps need to be changed in this file.