Splunk observability documentation12/23/2023 Many fast‑changing applications require new servers to be added or taken down on a constant basis. Switching servers would cause that information to be fetched for the second time, creating performance inefficiencies. Another use case for session persistence is when an upstream server stores information requested by a user in its cache to boost performance. The best load balancers can handle session persistence as needed. In such cases, it is essential that all requests from a client are sent to the same server for the duration of the session. Changing which server receives requests from that client in the middle of the shopping session can cause performance issues or outright transaction failure. For example, in a shopping cart application the items in a user’s cart might be stored at the browser level until the user is ready to purchase them. Information about a user’s session is often stored locally in the browser. The Least Time algorithm, if so configured). One that is selected by then applying the Least Connections algorithm (or for NGINX Plus Random with Two Choices – Picks two servers at random and sends the request to the.IP Hash – The IP address of the client is used to determine which server receives the request.Of loads if the set of upstream servers changes. NGINX Plus can optionally apply a consistent hash to minimize redistribution Hash – Distributes requests based on a key you define, such as the client IP address or.Least Time – Sends requests to the server selected by a formula that combines theįastest response time and fewest active connections.The relative computing capacity of each server is factored into determining which one has the least connections. Least Connections – A new request is sent to the server with the fewest current connections to clients.Round Robin – Requests are distributed across the group of servers sequentially.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |