diff --git a/src/backend/turbo/common-turbo/common-turbo-client/common-client-base/src/main/kotlin/com/tencent/devops/common/client/ms/FeignTarget.kt b/src/backend/turbo/common-turbo/common-turbo-client/common-client-base/src/main/kotlin/com/tencent/devops/common/client/ms/FeignTarget.kt
index 9326a6267..bbdbd2c8c 100644
--- a/src/backend/turbo/common-turbo/common-turbo-client/common-client-base/src/main/kotlin/com/tencent/devops/common/client/ms/FeignTarget.kt
+++ b/src/backend/turbo/common-turbo/common-turbo-client/common-client-base/src/main/kotlin/com/tencent/devops/common/client/ms/FeignTarget.kt
@@ -41,10 +41,10 @@ abstract class FeignTarget<T>(
     protected open val type: Class<T>,
     protected open val commonUrlPrefix: String,
     // key: serviceName, value: List<ServiceInstance>
-    protected val usedInstance: Cache<String, List<ServiceInstance>> = CacheBuilder.newBuilder()
+    protected val usedInstance: Cache<String, MutableList<ServiceInstance>> = CacheBuilder.newBuilder()
         .maximumSize(1000)
         .expireAfterWrite(3, TimeUnit.SECONDS)
-        .build<String, List<ServiceInstance>>()
+        .build<String, MutableList<ServiceInstance>>()
 ) : Target<T> {
 
     override fun apply(input: RequestTemplate?): Request {
diff --git a/src/backend/turbo/common-turbo/common-turbo-client/common-client-consul/src/main/kotlin/com/tencent/devops/common/client/ms/ConsulServiceTarget.kt b/src/backend/turbo/common-turbo/common-turbo-client/common-client-consul/src/main/kotlin/com/tencent/devops/common/client/ms/ConsulServiceTarget.kt
index 3686e3ed5..b059513d5 100644
--- a/src/backend/turbo/common-turbo/common-turbo-client/common-client-consul/src/main/kotlin/com/tencent/devops/common/client/ms/ConsulServiceTarget.kt
+++ b/src/backend/turbo/common-turbo/common-turbo-client/common-client-consul/src/main/kotlin/com/tencent/devops/common/client/ms/ConsulServiceTarget.kt
@@ -32,6 +32,7 @@ import org.slf4j.LoggerFactory
 import org.springframework.cloud.client.ServiceInstance
 import org.springframework.cloud.client.discovery.DiscoveryClient
 import org.springframework.cloud.consul.discovery.ConsulServiceInstance
+import java.util.Random
 
 open class ConsulServiceTarget<T> constructor(
         override val serviceName: String,
@@ -50,34 +51,31 @@ open class ConsulServiceTarget<T> constructor(
     }
 
     override fun choose(serviceName: String): ServiceInstance {
-        val serviceInstanceList: List<ServiceInstance> = usedInstance.getIfPresent(serviceName) ?: emptyList()
+        val serviceInstanceList: MutableList<ServiceInstance> = usedInstance.getIfPresent(serviceName) ?: mutableListOf()
 
         if (serviceInstanceList.isEmpty()) {
             val currentInstanceList = discoveryClient.getInstances(serviceName)
+
             if (currentInstanceList.isEmpty()) {
-                logger.error("Unable to find any valid [$serviceName] service provider")
-                throw ClientException(
-                    "Unable to find any valid [$serviceName] service provider"
-                )
+                val errMsg = "Unable to find any valid [$serviceName] service provider"
+                logger.error(errMsg)
+                throw ClientException(errMsg)
             }
             currentInstanceList.forEach { serviceInstance ->
-                if (serviceInstance is ConsulServiceInstance && serviceInstance.tags.contains(tag)) {
-                    serviceInstanceList.toMutableList().add(serviceInstance)
+                if ((serviceInstance is ConsulServiceInstance) && serviceInstance.tags.contains(tag)) {
+                    serviceInstanceList.add(serviceInstance)
                 }
             }
 
             if (serviceInstanceList.isEmpty()) {
-                logger.error("Unable to find any valid [$serviceName] service provider")
-                throw ClientException(
-                    "Unable to find any valid [$serviceName] service provider"
-                )
+                val errMsg = "Unable to find any valid [$serviceName] service provider"
+                logger.error(errMsg)
+                throw ClientException(errMsg)
             } else {
                 usedInstance.put(serviceName, serviceInstanceList)
-                serviceInstanceList.toMutableList().shuffle()
             }
         }
-
-        return serviceInstanceList[0]
+        return serviceInstanceList[Random().nextInt(serviceInstanceList.size)]
     }
 
     override fun url(): String {
diff --git a/src/backend/turbo/common-turbo/common-turbo-client/common-client-k8s/src/main/kotlin/com/tencent/devops/common/client/ms/KubernetesServiceTarget.kt b/src/backend/turbo/common-turbo/common-turbo-client/common-client-k8s/src/main/kotlin/com/tencent/devops/common/client/ms/KubernetesServiceTarget.kt
index 8777919bc..da610e273 100644
--- a/src/backend/turbo/common-turbo/common-turbo-client/common-client-k8s/src/main/kotlin/com/tencent/devops/common/client/ms/KubernetesServiceTarget.kt
+++ b/src/backend/turbo/common-turbo/common-turbo-client/common-client-k8s/src/main/kotlin/com/tencent/devops/common/client/ms/KubernetesServiceTarget.kt
@@ -49,17 +49,16 @@ class KubernetesServiceTarget<T> constructor(
     }
 
     override fun choose(serviceName: String): ServiceInstance {
-        val serviceInstanceList: List<ServiceInstance> = usedInstance.getIfPresent(serviceName) ?: emptyList()
+        val serviceInstanceList: MutableList<ServiceInstance> = usedInstance.getIfPresent(serviceName) ?: mutableListOf()
 
         if (serviceInstanceList.isEmpty()) {
             val currentInstanceList = discoveryClient.getInstances(serviceName)
             if (currentInstanceList.isEmpty()) {
-                logger.error("Unable to find any valid [$serviceName] service provider")
-                throw ClientException(
-                     "Unable to find any valid [$serviceName] service provider"
-                )
+                val errMessage = "Unable to find any valid [$serviceName] service provider"
+                logger.error(errMessage)
+                throw ClientException(errMessage)
             }
-            serviceInstanceList.toMutableList().addAll(currentInstanceList)
+            serviceInstanceList.addAll(currentInstanceList)
             usedInstance.put(serviceName, serviceInstanceList)
         }