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The knowledge of existing nodes in the cluster is refreshed regularly and the Overlay Index evaluates whether changes to its model of the cluster are required every 5 minutes, verifying the Overlay Index is optimally spread across all available nodes in the cluster as new nodes are added or existing nodes are removed from the cluster. Adjustments to the Overlay Index's distribution due to changes in the nodes participating in the Overlay Index (particularly immediately after a cluster reboot) happen quickly but are not instantaneous. However, distribution Distribution adjustments should not affect client activity.
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