Redis是一個很是NB的內存級的數據庫,咱們能夠把不少」熱數據「(即讀寫很是多的數據)放入其中來操做,這樣就減小了和關係型數據庫(如SqlServer/My Sql等)之間的交互,程序的響應速度也大大提高。mysql
C#利用ServiceStack.Redis來操做Redis,它是Redis官方推薦的C#客戶端,性能很是優越,使用也很方便。git
ServiceStack.LicenseException: The free-quota limit on '6000 Redis requests per hour' has been reached. Please see https://servicestack.net to upgrade to a commercial license or visit https://github.cgithub
開始本地測試的時候並無發現,由於咱們的數據量小,每小時訪問Redis次數也少,可是到了服務器上發現總是報這個錯誤:redis
The free-quota limit on '6000 Redis requests per hour' has been reached. Please see https://servicestack.NET to upgrade to a commercial license.sql
在ServiceStack的官網(https://servicestack.Net/download)上看到了關於這個錯誤的說明:原來ServiceStack v4版本已經逐漸商業化了,普通版每小時智能訪問Redis6000次,要取消這個限制就要付費或者您也能夠往回使用V3版本。數據庫