> For the complete documentation index, see [llms.txt](https://docs.ngsurvey.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ngsurvey.com/ar/installation-setup/installation/cluster-scale-out-configuration.md).

# إعداد المجموعة / التوسع الأفقي

تكوين عدة خوادم للاستبيانات ذات الطلب المرتفع

لتحسين الأداء يقوم ngSurvey بتخزين أجزاء من البيانات مؤقتًا على الخادم. إذا كنت تعمل على عنقود أو على خوادم متعددة تشارك الحمل، يجب عليك تفعيل التخزين المؤقت الموزع لضمان أن جميع العقد في العنقود لديها نفس البيانات ومحدثة.

لتفعيل التخزين المؤقت الموزع يمكنك تعيين قيمة متغير البيئة التالي إلى true.

<pre><code><strong>NGSurvey:DistributedCache
</strong></code></pre>


---

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