diff --git a/deploy-manifests/k8s-rancher/1.authx-service/4.cas-server/4.5.cas-server-site-webapp.yaml b/deploy-manifests/k8s-rancher/1.authx-service/4.cas-server/4.5.cas-server-site-webapp.yaml
index 930843c..6826c26 100644
--- a/deploy-manifests/k8s-rancher/1.authx-service/4.cas-server/4.5.cas-server-site-webapp.yaml
+++ b/deploy-manifests/k8s-rancher/1.authx-service/4.cas-server/4.5.cas-server-site-webapp.yaml
@@ -13,11 +13,11 @@
   #SSL_KEYSTORE_FILE: file:/certs/server/server.keystore
   #SSL_KEYSTORE_PASSWORD: ""
 
-  SERVER_MAXHTTPHEADERSIZE: "10240"
+  SERVER_MAXHTTPHEADERSIZE: "2097152"
 
   SERVER_TOMCAT_ACCEPT_COUNT: "5000"
   SERVER_TOMCAT_MAX_CONNECTIONS: "10000"
-  SERVER_TOMCAT_MAX_THREADS: "800"
+  SERVER_TOMCAT_MAX_THREADS: "350"
   SERVER_TOMCAT_MIN_SPARE_THREADS: "100"
 
 
@@ -270,9 +270,9 @@
             name: cas-server-site-webapp-env
         resources:
           requests:
-            memory: "6000Mi"
+            memory: "4096Mi"
           limits:
-            memory: "6000Mi"
+            memory: "4096Mi"
         readinessProbe:
           tcpSocket:
             port: 8080