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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ### 輪詢算法(Round-Robin) 輪詢算法是最簡單的一種負載均衡算法。它的原理是把來自用戶的請求輪流分配給內部的服務器:從服務器1開始,直到服務器N,然后重新開始循環。 算法的優點是其簡潔性,它無需記錄當前所有連接的狀態,所以它是一種無狀態調度; 輪詢算法假設所有服務器的處理性能都相同,不關心每臺服務器的當前連接數和響應速度。當請求服務間隔時間變化比較大時,輪詢算法容易導致服務器間的負載不平衡。所以此種均衡算法適合于服務器組中的所有服務器都有相同的軟硬件配置并且平均服務請求相對均衡的情況 偽代碼: ``` public class LoadBalanceTest { static int roundPos = 0; static List<String> list = new ArrayList<>(); public static void main(String[] args) throws InterruptedException { while (true){ System.err.println(loadBalanceOfRound()); TimeUnit.SECONDS.sleep(1); } } private static synchronized String loadBalanceOfRound(){ if (roundPos >= list.size() ){ roundPos = 0; } return list.get(roundPos++); } static { list.add("192.168.0.101"); list.add("192.168.0.102"); list.add("192.168.0.103"); list.add("192.168.0.104"); } } ```
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