diff --git a/compute/src/main/java/org/zstack/compute/host/HostBase.java b/compute/src/main/java/org/zstack/compute/host/HostBase.java
index 919d92631fc..2f105c947e6 100755
--- a/compute/src/main/java/org/zstack/compute/host/HostBase.java
+++ b/compute/src/main/java/org/zstack/compute/host/HostBase.java
@@ -1099,6 +1099,7 @@ private void updateHostConnectedTime(HostStatus hostStatus) {
             creator.setTagByTokens(Collections.singletonMap(token, connectedTime));
             creator.inherent = false;
             creator.recreate = false;
+            creator.ignoreIfExisting = true;
             creator.create();
             return;
         }
diff --git a/conf/errorElaborations/Elaboration.json b/conf/errorElaborations/Elaboration.json
index ec236629bbe..c89e48e713d 100644
--- a/conf/errorElaborations/Elaboration.json
+++ b/conf/errorElaborations/Elaboration.json
@@ -803,7 +803,7 @@
     "category": "PS",
     "code": "1000",
     "method": "distance",
-    "regex": "failed to detach data volume[uuid:%s, installPath:%s] from vm[uuid:%s, name:%s] on kvm host[uuid:%s, ip:%s], because unable to detach the volume from the vm;it's still attached after 5 seconds",
+    "regex": "failed to detach data volume[uuid:%s, installPath:%s] from vm[uuid:%s, name:%s] on kvm host[uuid:%s, ip:%s], because unable to detach the volume from the vm;it's still attached after \\d+ seconds",
     "message_cn": "由于云主机操作系统限制可能会导致卸载云盘失败，请尝试对云主机关机后再次卸载。",
     "message_en": "Detaching volume may fail due to limitations of the VM operating system. Please try again after VM shutdown."
   },